bump version and changelog

Prevent incorrect skeletonLayer to be added when updating skeleton

.codebeatsettings

@@ -0,0 +1,6 @@
+{
+  "SWIFT": {
+    "TOO_MANY_FUNCTIONS": [50, 100, 150, 200],
+    "TOTAL_LOC": [200, 400, 500, 600]
+  }
+}

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: [juanpe]

.github/issue_template.md

@@ -1,5 +1,7 @@
 ⚠️ Please fill out this template when filing an issue.
 
+#### 🙏🏼 *Please check if it already exists other issue related with yours.*
+
 ### What did you do?
 
 *Please replace this with what you did.*

.github/stale.yml

@@ -0,0 +1,10 @@
+daysUntilStale: 20
+daysUntilClose: 7
+onlyLabels:
+  - awaiting user input
+staleLabel: given up
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs. Thank you
+  for your contributions.
+closeComment: false

.github/workflows/build.yml

@@ -0,0 +1,20 @@
+name: build
+
+on:
+  push:
+    branches:
+    - develop
+  pull_request:
+    branches:
+    - develop
+
+jobs:
+  build:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: xcodebuild
+      run: |
+        xcodebuild -project SkeletonView.xcodeproj -target SkeletonView-iOS -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 7,OS=12'
+        xcodebuild -project SkeletonView.xcodeproj -target SkeletonView-tvOS -sdk appletvsimulator -destination 'platform=tvOS Simulator,name=Apple TV,OS=12'
+        xcodebuild -project SkeletonView.xcodeproj -target SkeletonViewExample -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 7,OS=12'

.github/workflows/checks.yml

@@ -0,0 +1,13 @@
+name: CI
+
+on: [pull_request]
+
+jobs:
+  danger:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Execute danger
+        uses: danger/swift@2.0.3
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -21,6 +21,7 @@ xcuserdata/
 *.moved-aside
 *.xccheckout
 *.xcscmblueprint
+.DS_Store
 
 ## Obj-C/Swift specific
 *.hmap
@@ -45,7 +46,7 @@ playground.xcworkspace
 # you should judge for yourself, the pros and cons are mentioned at:
 # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
 #
-# Pods/
+Pods/
 
 # Carthage
 #
@@ -65,3 +66,7 @@ fastlane/report.xml
 fastlane/Preview.html
 fastlane/screenshots
 fastlane/test_output
+
+# JetBrains
+
+.idea

.swift-version

@@ -1 +1 @@
-4.0
+5.0

.travis.yml

@@ -1,6 +0,0 @@
-language: objective-c
-osx_image: xcode9
-script:
-  - xcodebuild -project SkeletonView.xcodeproj -target SkeletonView-iOS -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 7,OS=11'
-  - xcodebuild -project SkeletonView.xcodeproj -target SkeletonViewExample -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 7,OS=11'
-after_success:

CHANGELOG.md

@@ -0,0 +1,206 @@
+# Change Log
+All notable changes to this project will be documented in this file
+
+### Next version
+
+### 📦 [1.8.8](https://github.com/Juanpe/SkeletonView/releases/tag/1.8.8)
+
+#### 🙌 New
+* [**304**](https://github.com/Juanpe/SkeletonView/pull/304): French README 🇫🇷 - [@OmarJalil](https://github.com/OmarJalil)
+
+#### 🔬Improvements
+* [**311**](https://github.com/Juanpe/SkeletonView/pull/311): Bump json from 2.2.0 to 2.3.1 - [@dependabot](https://github.com/dependabot)
+
+#### 🩹 Bug fixes
+* [**286**](https://github.com/Juanpe/SkeletonView/pull/286): Fix issue when WKWebView calls skeletonLayoutSubviews not on the main thread - [@paulanatoleclaudot-betclic](https://github.com/paulanatoleclaudot-betclic)
+* [**292**](https://github.com/Juanpe/SkeletonView/pull/292): Fix IBInspectable support when using Carthage - [@marisalaneous](https://github.com/marisalaneous)
+* [**308**](https://github.com/Juanpe/SkeletonView/pull/308): Fix example backgroundColor in DarkMode - [@toshi0383](https://github.com/toshi0383)
+* [**307**](https://github.com/Juanpe/SkeletonView/pull/307): Prevent incorrect skeletonLayer to be added when updating skeleton - [@wsalim1610](https://github.com/wsalim1610)
+
+### 📦 [1.8.7](https://github.com/Juanpe/SkeletonView/releases/tag/1.8.7)
+
+#### 🔬Improvements
+* [**271**](https://github.com/Juanpe/SkeletonView/pull/271): Add corner radius for skeletonView as IBInspectable (CGFloat) default is 0.0 - [@paulanatoleclaudot-betclic](https://github.com/paulanatoleclaudot-betclic)
+
+#### 🩹 Bug fixes
+* [**259**](https://github.com/Juanpe/SkeletonView/issues/259): Prevent isSkeletonActive to be called when isSkeletonable is false - [@wsalim1610](https://github.com/wsalim1610)
+* [**274**](https://github.com/Juanpe/SkeletonView/pull/274): Fix: hiding skeleton when header and footer views of section would not hide it - [@darkside999](https://github.com/darkside999)
+* [**273**](https://github.com/Juanpe/SkeletonView/pull/273): Fix: in vertical stack view with center alignment show incorrect position - [@koooootake](https://github.com/koooootake)
+
+### 📦 [1.8.6](https://github.com/Juanpe/SkeletonView/releases/tag/1.8.6)
+
+#### 🔬Improvements
+* [**242**](https://github.com/Juanpe/SkeletonView/pull/242): Offscreen table view layout issue fixed - [@Cacodemon](https://github.com/Cacodemon)
+* [**261**](https://github.com/Juanpe/SkeletonView/pull/261): Fixes removing skeleton layers from table header footer sections - [@darkside999](https://github.com/darkside999)
+* [**263**](https://github.com/Juanpe/SkeletonView/pull/263): Feature/set cross dissolve transitions as default - [@Juanpe](https://github.com/Juanpe)
+* [**264**](https://github.com/Juanpe/SkeletonView/pull/264): not replace original datasource is running XCTests - [@Juanpe](https://github.com/Juanpe)
+* [**265**](https://github.com/Juanpe/SkeletonView/pull/265): call original traitCollectionDidChange method - [@Juanpe](https://github.com/Juanpe)
+
+#### 🩹 Bug fixes
+* [**260**](https://github.com/Juanpe/SkeletonView/issues/260): Don't hide skeleton layers on TableViewHeaderFooterView
+* [**257**](https://github.com/Juanpe/SkeletonView/issues/257): Unit test problem when using SkeletonView
+
+
+### 📦 [1.8.3](https://github.com/Juanpe/SkeletonView/releases/tag/1.8.3)
+
+- Support for iOS 13 dark mode. (thanks @Wilsonator5000)
+
+### 📦 [1.8.2](https://github.com/Juanpe/SkeletonView/releases/tag/1.8.2)
+
+#### 🙌 New
+- Add ability to customize line spacing per label. (thanks @gshahbazian)
+
+### 📦 [LayoutSkeleton (1.8.1)](https://github.com/Juanpe/SkeletonView/releases/tag/1.8.1)
+
+#### 🔬Improvements
+- Fix completion call in .none transition style while hide skeletons. (thanks @aadudyrev)
+
+#### 🙌 New
+- Swizzle `layoutSubviews` method.
+
+#### 🔬Improvements
+- Fix completion call in .none transition style while hiding skeletons. (thanks @aadudyrev)
+- Swift format.
+
+#### 🩹 Bug fixes
+- Update layout subviews when the original method is called.
+   - Issues: [#88, #149]
+
+### 📦 [Transitions (1.8)](https://github.com/Juanpe/SkeletonView/releases/tag/1.8)
+
+#### 🙌 New
+
+- Adding swift news to mentioned section (thanks @osterbergmarcus).
+- Create `SkeletonTransitionStyle`. Now, you can animate transition when you show or hide skeletons. (thanks @pontusjacobsson)
+
+#### 🔬Improvements
+- Refactor some methods.
+
+#### 🩹 Bug fixes
+- Solved issues.
+ [#175](https://github.com/Juanpe/SkeletonView/issues/175) Swift Package Manager version format
+
+### 📦 [Layout update (1.7)](https://github.com/Juanpe/SkeletonView/releases/tag/1.7)
+
+#### 🙌 New
+
+- Allow updating skeleton layout to recalculate skeleton bounds: `layoutSkeletonIfNeeded`. See the examples to know how to use it. (thanks @eduardbosch)
+
+#### 🔬Improvements
+
+- Allow updating skeleton layers without recreating them: `updateSkeleton`, `updateGradientSkeleton`, `updateAnimatedSkeleton`, `updateAnimatedGradientSkeleton`. (thanks @eduardbosch)
+
+### 📦 [Debug (1.4)](https://github.com/Juanpe/SkeletonView/releases/tag/1.4)
+
+#### 🙌 New
+
+- Create `skeletonDescription` print a skeleton representation of the view.
+- Create `SKELETON_DEBUG` environment variable, in order to print the view hierarchy when the skeleton appears.
+
+#### 🔬Improvements
+- Add two new methods to `SkeletonFlowDelegate` protocol. Now you can know when the skeleton did show and when it did hide.
+- `Recursive` protocol
+
+#### 🩹 Bug fixes
+- Solved issue [#86](https://github.com/Juanpe/SkeletonView/issues/86) (thanks @reececomo)
+
+### 📦 [Custom defaults (1.3)](https://github.com/Juanpe/SkeletonView/releases/tag/1.3)
+
+#### 🙌 New
+
+- Default values customizables. Now you can set the default values of Skeleton appearance.(thanks @reececomo)
+  - issues: [[#50](https://github.com/Juanpe/SkeletonView/issues/50), [#83](https://github.com/Juanpe/SkeletonView/issues/83)]
+
+#### 🩹 Bug fixes
+- Solved issue [#41](https://github.com/Juanpe/SkeletonView/issues/41). Now, Skeleton works if UICollectionView cell's Nib is registered in code. (thanks @kjoneandrei)
+
+### 📦 [Typo (1.2.3)](https://github.com/Juanpe/SkeletonView/releases/tag/1.2.3)
+
+####  Fixes
+
+- Fix typo in `SkeletonTableViewDataSource` protocol
+
+#### 🔬Improvements
+
+- Now it takes in account the `UIStackView` to calculate the `SkeletonLayer` bounds (thanks @giantramen)
+
+### 📦 [New face (1.2.2)](https://github.com/Juanpe/SkeletonView/releases/tag/1.2.2)
+
+#### 🙌 New
+
+- Rebranding
+
+#### 🩹 Bug fixes
+- Solved issue [#23](https://github.com/Juanpe/SkeletonView/issues/23). Problem with UIStackView. (thanks @giantramen)
+
+### 📦 [State (1.2.1)](https://github.com/Juanpe/SkeletonView/releases/tag/1.2.1)
+
+#### 🙌 New
+
+- You can set the corner radius multiline elements (thanks @B4V4-G)
+- Save view state when skeleton appears and recovery when it is hidden (@juanpe)
+
+#### 🩹 Bug fixes
+- Solved issue [#51](https://github.com/Juanpe/SkeletonView/issues/51). Support inspectable properties when using Carthage. (thanks @eduardbosch)
+
+### 📦 [On TV (1.2)](https://github.com/Juanpe/SkeletonView/releases/tag/1.2)
+
+#### 🙌 New
+- Now ```SkeletonView``` is **tvOS** compatible! 🎉.  (thanks @mihai8804858)
+
+#### 🩹 Bug fixes
+- Solved issue [#46](https://github.com/Juanpe/SkeletonView/issues/46). It crashes the application when tap on it, didSelect called and crash.
+
+
+### 📦 [Hotfix (1.1.1)](https://github.com/Juanpe/SkeletonView/releases/tag/1.1.1)
+
+#### 🩹 Bug fixes
+- Now yes, solved issue [#39](https://github.com/Juanpe/SkeletonView/issues/39)
+
+### 📦 [Needed (1.1)](https://github.com/Juanpe/SkeletonView/releases/tag/1.1)
+
+#### 🙌 New
+- Now ```SkeletonView```supports **UICollectionViews**! 🎉.  (thanks @Renatdz)
+
+#### 🩹 Bug fixes
+- Solved issue [#39](https://github.com/Juanpe/SkeletonView/issues/39). Gradient animation did not work when app becomes active.
+
+
+### 📦 [Resizable (1.0.5)](https://github.com/Juanpe/SkeletonView/releases/tag/1.0.5)
+
+#### 🙌 New
+- Now you can use table views with resizable cells.
+
+#### 🩹 Bug fixes
+- Solved issues.
+ [#17](https://github.com/Juanpe/SkeletonView/issues/17),
+ [#30](https://github.com/Juanpe/SkeletonView/issues/30),
+ [#34](https://github.com/Juanpe/SkeletonView/issues/34).
+
+### 📦 [Filled or not (1.0.4)](https://github.com/Juanpe/SkeletonView/releases/tag/1.0.4)
+
+#### 🙌 New
+- You can set the filling percent of the last line in multiline elements (thanks @jontelang!)
+
+#### 🩹 Bug fixes
+- Solved issue [#14](https://github.com/Juanpe/SkeletonView/issues/14). You could edit text views with skeleton active.
+
+### 📦 [In all directions (1.0.3)](https://github.com/Juanpe/SkeletonView/releases/tag/1.0.3)
+
+#### 🙌 New
+- Create ```SkeletonAnimationBuilder```, to facilitate the creation of layer animations.
+```GradientDirection``` enum.
+
+### 📦 [Retro (1.0.2)](https://github.com/Juanpe/SkeletonView/releases/tag/1.0.2)
+
+#### 🙌 New
+- Change some private keywords, to be Swift 3 compatible
+
+### 📦 [Early bird bug (1.0.1)](https://github.com/Juanpe/SkeletonView/releases/tag/1.0.2)
+
+#### 🩹 Bug fixes
+- It was not removing the skeleton layer
+
+### 📦 [Starter (1.0)](https://github.com/Juanpe/SkeletonView/releases/tag/1.0)
+
+- First release

Configs/SkeletonView-iOS.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0.4</string>
+	<string>1.3</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>

Configs/SkeletonView-tvOS.plist

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

Configs/SkeletonViewExampleCollectionview-Info.plist

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

Configs/SkeletonViewExampleInfo.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0.4</string>
+	<string>1.3</string>
 	<key>CFBundleVersion</key>
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>

Dangerfile.swift

@@ -0,0 +1,44 @@
+import Danger
+
+let danger = Danger()
+let github = danger.github
+
+// Changelog entries are required for changes to library files.
+let allSourceFiles = danger.git.modifiedFiles + danger.git.createdFiles
+let noChangelogEntry = !allSourceFiles.contains("CHANGELOG.md")
+let sourceChanges = allSourceFiles.contains { $0.hasPrefix("Sources") }
+let isNotTrivial = !danger.github.pullRequest.title.contains("#trivial")
+
+if isNotTrivial && noChangelogEntry && sourceChanges {
+    warn("Any changes to library code should be reflected in the Changelog.")
+}
+
+ // Make it more obvious that a PR is a work in progress and shouldn't be merged yet
+if danger.github.pullRequest.title.contains("WIP") {
+    warn("PR is classed as Work in Progress")
+}
+
+// Warn, asking to update all README files if only English README are updated
+let enReameModified = danger.git.modifiedFiles.contains { $0.contains("README.md") }
+let zhReameModified = danger.git.modifiedFiles.contains { $0.contains("README_zh.md") }
+let koReameModified = danger.git.modifiedFiles.contains { $0.contains("README_ko.md") }
+let ptBrReameModified = danger.git.modifiedFiles.contains { $0.contains("README_pt-br.md") }
+let otherLanguagesReadmeHaveBeenModified = zhReameModified && koReameModified && ptBrReameModified
+
+if (enReameModified && !otherLanguagesReadmeHaveBeenModified) {
+    warn("Consider **also** updating the README for other languages.")
+}
+
+// Warn when there is a big PR
+if (danger.github.pullRequest.additions ?? 0) > 500 {
+    warn("Big PR, try to keep changes smaller if you can")
+}
+
+// Added (or removed) library files need to be added (or removed) from the
+// Xcode project to avoid breaking things.
+let addedSwiftLibraryFiles = danger.git.createdFiles.contains { $0.fileType == .swift && $0.hasPrefix("Sources") }
+let deletedSwiftLibraryFiles = danger.git.deletedFiles.contains { $0.fileType == .swift && $0.hasPrefix("Sources") }
+let modifiedXcodeProject = danger.git.modifiedFiles.contains { $0.contains(".xcodeproj") }
+if (addedSwiftLibraryFiles || deletedSwiftLibraryFiles) && !modifiedXcodeProject {
+    fail("Added or removed files require the Xcode project to be updated.")
+}

Example/CollectionView/AppDelegate.swift

@@ -0,0 +1,40 @@
+//  Copyright © 2018 SkeletonView. All rights reserved.
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+

Example/CollectionView/Assets.xcassets/picture.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "picture.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Example/CollectionView/CollectionViewCell.swift

@@ -0,0 +1,55 @@
+//  Copyright © 2018 SkeletonView. All rights reserved.
+
+import UIKit
+import SkeletonView
+
+class CollectionViewCell: UICollectionViewCell {
+    
+    var label: UILabel!
+    var imageView: UIImageView!
+    
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        
+        isSkeletonable = true
+        createLabel()
+        createImageView()
+        
+    }
+    
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    private func createImageView() {
+        imageView = UIImageView(image: UIImage(named: "picture"))
+        imageView.isSkeletonable = true
+        imageView.translatesAutoresizingMaskIntoConstraints = false
+        imageView.contentMode = .scaleAspectFit
+        addSubview(imageView)
+        NSLayoutConstraint.activate([
+            imageView.centerXAnchor.constraint(equalTo: centerXAnchor),
+            imageView.topAnchor.constraint(equalTo: topAnchor),
+            imageView.heightAnchor.constraint(equalTo: heightAnchor, multiplier: 0.75),
+            imageView.widthAnchor.constraint(equalTo: widthAnchor, multiplier: 0.75)
+            ])
+        
+        
+    }
+    
+    private func createLabel() {
+        label = UILabel()
+        label.isSkeletonable = true
+        label.text = "Lorem ipsum"
+        label.textAlignment = .center
+        label.translatesAutoresizingMaskIntoConstraints = false
+        addSubview(label)
+        NSLayoutConstraint.activate([
+            label.centerXAnchor.constraint(equalTo: centerXAnchor),
+            label.bottomAnchor.constraint(equalTo: bottomAnchor),
+            label.heightAnchor.constraint(equalToConstant: 40),
+            label.widthAnchor.constraint(equalToConstant: frame.width)
+            ])
+    }
+    
+}

Example/CollectionView/Main.storyboard

@@ -0,0 +1,212 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15702" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="irH-dz-xqL">
+    <device id="retina4_7" orientation="portrait" appearance="light"/>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15704"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="qda-qV-vJk">
+            <objects>
+                <viewController id="irH-dz-xqL" customClass="ViewController" customModule="SkeletonViewExampleUICollectionView" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Fso-nq-n6t">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="eHI-ka-8vS">
+                                <rect key="frame" x="0.0" y="0.0" width="375" height="243"/>
+                                <subviews>
+                                    <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="obr-b6-dib">
+                                        <rect key="frame" x="45" y="142" width="287" height="78"/>
+                                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <constraints>
+                                            <constraint firstAttribute="height" constant="78" id="jx6-c1-U0j"/>
+                                        </constraints>
+                                        <string key="text">Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. </string>
+                                        <fontDescription key="fontDescription" type="system" pointSize="14"/>
+                                        <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
+                                        <userDefinedRuntimeAttributes>
+                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                                            <userDefinedRuntimeAttribute type="number" keyPath="lastLineFillPercent">
+                                                <integer key="value" value="40"/>
+                                            </userDefinedRuntimeAttribute>
+                                        </userDefinedRuntimeAttributes>
+                                    </textView>
+                                    <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="avatar" translatesAutoresizingMaskIntoConstraints="NO" id="Ql9-Jy-aWM">
+                                        <rect key="frame" x="141" y="20" width="93" height="93"/>
+                                        <color key="backgroundColor" red="0.56078431370000004" green="0.59607843140000005" blue="0.7843137255" alpha="0.90709546230000004" colorSpace="calibratedRGB"/>
+                                        <constraints>
+                                            <constraint firstAttribute="height" constant="93" id="jlG-7K-wMd"/>
+                                            <constraint firstAttribute="width" constant="93" id="xHX-Y1-dvi"/>
+                                        </constraints>
+                                        <userDefinedRuntimeAttributes>
+                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                                        </userDefinedRuntimeAttributes>
+                                    </imageView>
+                                </subviews>
+                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <constraints>
+                                    <constraint firstAttribute="height" relation="greaterThanOrEqual" constant="243" id="0g6-3g-uII"/>
+                                    <constraint firstAttribute="trailing" secondItem="obr-b6-dib" secondAttribute="trailing" constant="43" id="3ms-Wk-qcn"/>
+                                    <constraint firstItem="obr-b6-dib" firstAttribute="centerX" secondItem="eHI-ka-8vS" secondAttribute="centerX" constant="1" id="B5s-DM-eR8"/>
+                                    <constraint firstAttribute="height" constant="243" id="GX5-3W-tUt"/>
+                                    <constraint firstItem="Ql9-Jy-aWM" firstAttribute="centerX" secondItem="eHI-ka-8vS" secondAttribute="centerX" id="HsA-ID-oSK"/>
+                                    <constraint firstItem="Ql9-Jy-aWM" firstAttribute="top" secondItem="eHI-ka-8vS" secondAttribute="top" constant="20" id="Hxu-ae-hXQ"/>
+                                    <constraint firstItem="obr-b6-dib" firstAttribute="leading" secondItem="eHI-ka-8vS" secondAttribute="leading" constant="45" id="eop-Gq-7mO"/>
+                                    <constraint firstItem="obr-b6-dib" firstAttribute="top" secondItem="eHI-ka-8vS" secondAttribute="top" constant="142" id="inJ-75-hGX"/>
+                                </constraints>
+                                <viewLayoutGuide key="safeArea" id="36i-gK-pIa"/>
+                                <userDefinedRuntimeAttributes>
+                                    <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                                </userDefinedRuntimeAttributes>
+                            </view>
+                            <collectionView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" dataMode="prototypes" translatesAutoresizingMaskIntoConstraints="NO" id="HKL-L0-T2w">
+                                <rect key="frame" x="0.0" y="243" width="375" height="264"/>
+                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <collectionViewFlowLayout key="collectionViewLayout" minimumLineSpacing="10" minimumInteritemSpacing="10" id="mGU-kn-rfE">
+                                    <size key="itemSize" width="50" height="50"/>
+                                    <size key="headerReferenceSize" width="0.0" height="0.0"/>
+                                    <size key="footerReferenceSize" width="0.0" height="0.0"/>
+                                    <inset key="sectionInset" minX="0.0" minY="0.0" maxX="0.0" maxY="0.0"/>
+                                </collectionViewFlowLayout>
+                                <cells/>
+                                <connections>
+                                    <outlet property="dataSource" destination="irH-dz-xqL" id="wya-hE-ovQ"/>
+                                </connections>
+                            </collectionView>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="JjA-MK-YzZ">
+                                <rect key="frame" x="0.0" y="507" width="375" height="160"/>
+                                <subviews>
+                                    <segmentedControl opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="top" segmentControlStyle="plain" selectedSegmentIndex="0" translatesAutoresizingMaskIntoConstraints="NO" id="fMR-vj-7de">
+                                        <rect key="frame" x="20" y="21" width="145" height="32"/>
+                                        <segments>
+                                            <segment title="Solid"/>
+                                            <segment title="Gradient"/>
+                                        </segments>
+                                        <connections>
+                                            <action selector="changeSkeletonType:" destination="irH-dz-xqL" eventType="valueChanged" id="lfR-JV-DU4"/>
+                                        </connections>
+                                    </segmentedControl>
+                                    <switch opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" contentHorizontalAlignment="center" contentVerticalAlignment="center" on="YES" translatesAutoresizingMaskIntoConstraints="NO" id="KBe-RM-BG8">
+                                        <rect key="frame" x="308" y="21" width="51" height="31"/>
+                                        <connections>
+                                            <action selector="changeAnimated:" destination="irH-dz-xqL" eventType="valueChanged" id="dlH-KK-iee"/>
+                                        </connections>
+                                    </switch>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Animated" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="GSj-Ze-UIK">
+                                        <rect key="frame" x="229" y="26" width="73" height="21"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Color" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="4Hm-fj-45V">
+                                        <rect key="frame" x="20" y="61" width="41.5" height="52"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                    <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="HBJ-nh-56V">
+                                        <rect key="frame" x="69.5" y="72" width="30" height="30"/>
+                                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <constraints>
+                                            <constraint firstAttribute="width" constant="30" id="DVW-Tc-XEQ"/>
+                                            <constraint firstAttribute="height" constant="30" id="JfP-3b-yqX"/>
+                                        </constraints>
+                                    </view>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="aUR-Qo-gHK">
+                                        <rect key="frame" x="20" y="61" width="100" height="52"/>
+                                        <constraints>
+                                            <constraint firstAttribute="width" constant="100" id="GvX-hq-2Qn"/>
+                                            <constraint firstAttribute="height" constant="52" id="UQe-Cf-riE"/>
+                                        </constraints>
+                                        <connections>
+                                            <action selector="btnChangeColorTouchUpInside:" destination="irH-dz-xqL" eventType="touchUpInside" id="Xca-QC-htl"/>
+                                        </connections>
+                                    </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="nPs-17-vfs">
+                                        <rect key="frame" x="263" y="72" width="94" height="30"/>
+                                        <state key="normal" title="Hide skeleton"/>
+                                        <connections>
+                                            <action selector="showOrHideSkeleton:" destination="irH-dz-xqL" eventType="touchUpInside" id="lHc-k2-OgV"/>
+                                        </connections>
+                                    </button>
+                                    <stepper opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="0.25" maximumValue="5" stepValue="0.25" translatesAutoresizingMaskIntoConstraints="NO" id="3mz-9M-e7Q">
+                                        <rect key="frame" x="263" y="123" width="94" height="32"/>
+                                        <connections>
+                                            <action selector="transitionDurationStepperAction:" destination="irH-dz-xqL" eventType="valueChanged" id="Ll0-Pr-d0V"/>
+                                        </connections>
+                                    </stepper>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Fade Duration: 0.25 sec" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="5gN-Jz-44y">
+                                        <rect key="frame" x="92.5" y="130" width="162.5" height="18"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                </subviews>
+                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <constraints>
+                                    <constraint firstItem="3mz-9M-e7Q" firstAttribute="leading" secondItem="5gN-Jz-44y" secondAttribute="trailing" constant="8" id="65e-Nj-bKG"/>
+                                    <constraint firstItem="HBJ-nh-56V" firstAttribute="centerY" secondItem="aUR-Qo-gHK" secondAttribute="centerY" id="81M-Wq-Avl"/>
+                                    <constraint firstItem="fMR-vj-7de" firstAttribute="leading" secondItem="JjA-MK-YzZ" secondAttribute="leading" constant="20" id="AyG-hI-tte"/>
+                                    <constraint firstItem="aUR-Qo-gHK" firstAttribute="leading" secondItem="fMR-vj-7de" secondAttribute="leading" id="C1b-Hl-jEg"/>
+                                    <constraint firstItem="3mz-9M-e7Q" firstAttribute="trailing" secondItem="nPs-17-vfs" secondAttribute="trailing" id="KuK-fc-jOQ"/>
+                                    <constraint firstItem="nPs-17-vfs" firstAttribute="centerY" secondItem="aUR-Qo-gHK" secondAttribute="centerY" id="MQX-E5-IDE"/>
+                                    <constraint firstItem="HBJ-nh-56V" firstAttribute="leading" secondItem="4Hm-fj-45V" secondAttribute="trailing" constant="8" id="MhM-jY-LIA"/>
+                                    <constraint firstItem="4Hm-fj-45V" firstAttribute="height" secondItem="aUR-Qo-gHK" secondAttribute="height" id="OSn-RA-wQL"/>
+                                    <constraint firstItem="4Hm-fj-45V" firstAttribute="leading" secondItem="aUR-Qo-gHK" secondAttribute="leading" id="PwQ-UR-iMq"/>
+                                    <constraint firstAttribute="height" constant="160" id="QDV-wu-e3I"/>
+                                    <constraint firstItem="5gN-Jz-44y" firstAttribute="centerY" secondItem="3mz-9M-e7Q" secondAttribute="centerY" id="TGP-Ep-0ob"/>
+                                    <constraint firstItem="nPs-17-vfs" firstAttribute="top" secondItem="KBe-RM-BG8" secondAttribute="bottom" constant="20" id="TPg-wY-9bc"/>
+                                    <constraint firstItem="4Hm-fj-45V" firstAttribute="centerY" secondItem="aUR-Qo-gHK" secondAttribute="centerY" id="V4i-bF-Jed"/>
+                                    <constraint firstItem="KBe-RM-BG8" firstAttribute="leading" secondItem="GSj-Ze-UIK" secondAttribute="trailing" constant="6" id="ehg-tW-7kq"/>
+                                    <constraint firstItem="GSj-Ze-UIK" firstAttribute="centerY" secondItem="KBe-RM-BG8" secondAttribute="centerY" id="esk-GV-DBS"/>
+                                    <constraint firstAttribute="trailing" secondItem="KBe-RM-BG8" secondAttribute="trailing" constant="18" id="hhE-rV-dV7"/>
+                                    <constraint firstItem="KBe-RM-BG8" firstAttribute="top" secondItem="JjA-MK-YzZ" secondAttribute="top" constant="21" id="pBQ-H8-xTK"/>
+                                    <constraint firstAttribute="bottom" secondItem="3mz-9M-e7Q" secondAttribute="bottom" constant="5" id="pQ9-a6-hM4"/>
+                                    <constraint firstItem="fMR-vj-7de" firstAttribute="centerY" secondItem="GSj-Ze-UIK" secondAttribute="centerY" id="q2v-t1-Zu0"/>
+                                    <constraint firstAttribute="height" relation="greaterThanOrEqual" constant="160" id="qR5-cz-YAm"/>
+                                    <constraint firstItem="nPs-17-vfs" firstAttribute="trailing" secondItem="KBe-RM-BG8" secondAttribute="trailing" id="yls-k6-ZfC"/>
+                                </constraints>
+                            </view>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="eHI-ka-8vS" firstAttribute="trailing" secondItem="2Gq-Y8-1TU" secondAttribute="trailing" id="0dc-Vd-yJY"/>
+                            <constraint firstItem="JjA-MK-YzZ" firstAttribute="leading" secondItem="2Gq-Y8-1TU" secondAttribute="leading" id="57i-UV-Wqd"/>
+                            <constraint firstItem="eHI-ka-8vS" firstAttribute="leading" secondItem="2Gq-Y8-1TU" secondAttribute="leading" id="5tt-Ne-67Y"/>
+                            <constraint firstItem="JjA-MK-YzZ" firstAttribute="bottom" secondItem="2Gq-Y8-1TU" secondAttribute="bottom" id="AAr-ke-R7M"/>
+                            <constraint firstItem="JjA-MK-YzZ" firstAttribute="trailing" secondItem="2Gq-Y8-1TU" secondAttribute="trailing" id="DtS-9c-zBC"/>
+                            <constraint firstItem="HKL-L0-T2w" firstAttribute="top" secondItem="eHI-ka-8vS" secondAttribute="bottom" id="Jgf-jS-PLT"/>
+                            <constraint firstItem="eHI-ka-8vS" firstAttribute="top" secondItem="2Gq-Y8-1TU" secondAttribute="top" id="Ux2-GF-HLK"/>
+                            <constraint firstItem="JjA-MK-YzZ" firstAttribute="top" secondItem="HKL-L0-T2w" secondAttribute="bottom" id="XEd-Gf-KFI"/>
+                            <constraint firstItem="2Gq-Y8-1TU" firstAttribute="trailing" secondItem="HKL-L0-T2w" secondAttribute="trailing" id="bNo-98-pE4"/>
+                            <constraint firstItem="HKL-L0-T2w" firstAttribute="leading" secondItem="2Gq-Y8-1TU" secondAttribute="leading" id="iIq-cx-paX"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="2Gq-Y8-1TU"/>
+                        <userDefinedRuntimeAttributes>
+                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                        </userDefinedRuntimeAttributes>
+                    </view>
+                    <connections>
+                        <outlet property="avatarImage" destination="Ql9-Jy-aWM" id="VoL-by-ygR"/>
+                        <outlet property="collectionView" destination="HKL-L0-T2w" id="HSe-j0-S5d"/>
+                        <outlet property="colorSelectedView" destination="HBJ-nh-56V" id="Iiq-iY-Glj"/>
+                        <outlet property="showOrHideSkeletonButton" destination="nPs-17-vfs" id="vw4-fW-QoD"/>
+                        <outlet property="skeletonTypeSelector" destination="fMR-vj-7de" id="CgX-3A-weo"/>
+                        <outlet property="switchAnimated" destination="KBe-RM-BG8" id="emU-g9-NHT"/>
+                        <outlet property="transitionDurationLabel" destination="5gN-Jz-44y" id="69y-iR-mbi"/>
+                        <outlet property="transitionDurationStepper" destination="3mz-9M-e7Q" id="tzK-W7-A4D"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="PkM-Y0-M5i" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-972" y="-209.14542728635683"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="avatar" width="215" height="211"/>
+    </resources>
+</document>

Example/CollectionView/ViewController.swift

@@ -0,0 +1,189 @@
+//  Copyright © 2018 SkeletonView. All rights reserved.
+
+import UIKit
+import SkeletonView
+
+class ViewController: UIViewController {
+    @IBOutlet weak var collectionView: UICollectionView! {
+        didSet {
+            collectionView.isSkeletonable = true
+            collectionView.backgroundColor = .clear
+            collectionView.showsHorizontalScrollIndicator = false
+            collectionView.showsVerticalScrollIndicator = false
+            
+            collectionView.dataSource = self
+            collectionView.delegate = self
+            
+            collectionView.register(CollectionViewCell.self, forCellWithReuseIdentifier: "CollectionViewCell")
+        }
+    }
+    
+    @IBOutlet weak var avatarImage: UIImageView! {
+        didSet {
+            avatarImage.layer.cornerRadius = avatarImage.frame.width/2
+            avatarImage.layer.masksToBounds = true
+        }
+    }
+    
+    @IBOutlet weak var colorSelectedView: UIView! {
+        didSet {
+            colorSelectedView.layer.cornerRadius = 5
+            colorSelectedView.layer.masksToBounds = true
+            colorSelectedView.backgroundColor = SkeletonAppearance.default.tintColor
+        }
+    }
+    
+    @IBOutlet weak var switchAnimated: UISwitch!
+    @IBOutlet weak var skeletonTypeSelector: UISegmentedControl!
+    @IBOutlet weak var showOrHideSkeletonButton: UIButton!
+    @IBOutlet weak var transitionDurationLabel: UILabel!
+    @IBOutlet weak var transitionDurationStepper: UIStepper!
+    
+    var type: SkeletonType {
+        return skeletonTypeSelector.selectedSegmentIndex == 0 ? .solid : .gradient
+    }
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        transitionDurationStepper.value = 0.25
+        collectionView.prepareSkeleton(completion: { done in
+            self.view.showAnimatedSkeleton()
+        })
+    }
+    
+    @IBAction func changeAnimated(_ sender: Any) {
+        if switchAnimated.isOn {
+            view.startSkeletonAnimation()
+        } else {
+            view.stopSkeletonAnimation()
+        }
+    }
+    
+    @IBAction func changeSkeletonType(_ sender: Any) {
+        refreshSkeleton()
+    }
+    
+    @IBAction func btnChangeColorTouchUpInside(_ sender: Any) {
+        showAlertPicker()
+    }
+    
+    @IBAction func showOrHideSkeleton(_ sender: Any) {
+        showOrHideSkeletonButton.setTitle((view.isSkeletonActive ? "Show skeleton" : "Hide skeleton"), for: .normal)
+        view.isSkeletonActive ? hideSkeleton() : showSkeleton()
+    }
+    
+    @IBAction func transitionDurationStepperAction(_ sender: Any) {
+        transitionDurationLabel.text = "transition duration: \(transitionDurationStepper.value) sec"
+    }
+    
+    func showSkeleton() {
+        refreshSkeleton()
+    }
+    
+    func hideSkeleton() {
+        view.hideSkeleton(transition: .crossDissolve(transitionDurationStepper.value))
+    }
+    
+    func refreshSkeleton() {
+        self.view.hideSkeleton()
+        if type == .gradient { showGradientSkeleton() }
+        else { showSolidSkeleton() }
+    }
+    
+    func showSolidSkeleton() {
+        if switchAnimated.isOn {
+            view.showAnimatedSkeleton(usingColor: colorSelectedView.backgroundColor!, transition: .crossDissolve(transitionDurationStepper.value))
+        } else {
+            view.showSkeleton(usingColor: colorSelectedView.backgroundColor!, transition: .crossDissolve(transitionDurationStepper.value))
+        }
+    }
+    
+    func showGradientSkeleton() {
+        let gradient = SkeletonGradient(baseColor: colorSelectedView.backgroundColor!)
+        if switchAnimated.isOn {
+            view.showAnimatedGradientSkeleton(usingGradient: gradient, transition: .crossDissolve(transitionDurationStepper.value))
+        } else {
+            view.showGradientSkeleton(usingGradient: gradient, transition: .crossDissolve(transitionDurationStepper.value))
+        }
+    }
+    
+    func showAlertPicker() {
+        let alertView = UIAlertController(title: "Select color", message: "\n\n\n\n\n\n", preferredStyle: .alert)
+        
+        let pickerView = UIPickerView(frame: CGRect(x: 0, y: 50, width: 260, height: 115))
+        pickerView.dataSource = self
+        pickerView.delegate = self
+        
+        alertView.view.addSubview(pickerView)
+        
+        let action = UIAlertAction(title: "OK", style: .default) { [unowned pickerView, unowned self] _ in
+            let row = pickerView.selectedRow(inComponent: 0)
+            self.colorSelectedView.backgroundColor = colors[row].0
+            self.refreshSkeleton()
+        }
+        alertView.addAction(action)
+        
+        let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)
+        alertView.addAction(cancelAction)
+        
+        present(alertView, animated: false, completion: {
+            pickerView.frame.size.width = alertView.view.frame.size.width
+        })
+    }
+}
+ 
+ // MARK: - UIPickerViewDelegate, UIPickerViewDataSource
+
+ extension ViewController: UIPickerViewDelegate, UIPickerViewDataSource {
+    func numberOfComponents(in pickerView: UIPickerView) -> Int {
+        return 1
+    }
+    
+    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
+        return colors.count
+    }
+    
+    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
+        return colors[row].1
+    }
+ }
+
+// MARK: - UICollectionViewDelegateFlowLayout
+
+extension ViewController: UICollectionViewDelegateFlowLayout {
+    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
+        return CGSize(width: view.frame.width/3 - 10, height: view.frame.width/3 - 10)
+    }
+    
+    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
+        return 5
+    }
+    
+    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
+        return 5
+    }
+}
+
+// MARK: - SkeletonCollectionViewDataSource
+
+extension ViewController: SkeletonCollectionViewDataSource {
+    func collectionSkeletonView(_ skeletonView: UICollectionView, cellIdentifierForItemAt indexPath: IndexPath) -> ReusableCellIdentifier {
+        return "CollectionViewCell"
+    }
+    
+    func collectionSkeletonView(_ skeletonView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
+        return 10
+    }
+    
+    // MARK: - UICollectionViewDataSource
+    
+    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
+        return 10
+    }
+    
+    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
+        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell", for: indexPath) as! CollectionViewCell
+        return cell
+        
+    }
+}

Example/TableView/AppDelegate.swift

@@ -14,7 +14,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     var window: UIWindow?
 
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         // Override point for customization after application launch.
         return true
     }

Example/TableView/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Example/TableView/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Example/TableView/Assets.xcassets/avatar.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "avatar.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Example/TableView/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

Example/TableView/Base.lproj/Main.storyboard

@@ -1,27 +1,71 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13529" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_7" orientation="portrait">
-        <adaptation id="fullscreen"/>
-    </device>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15505" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Va7-1y-Tel">
+    <device id="retina5_9" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13527"/>
-        <capability name="Constraints to layout margins" minToolsVersion="6.0"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15510"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
-        <!--View Controller-->
+        <!--Item-->
         <scene sceneID="tne-QT-ifu">
             <objects>
                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="SkeletonViewExample" customModuleProvider="target" sceneMemberID="viewController">
                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="812"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
-                            <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="none" rowHeight="120" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="UCB-SP-lQk">
-                                <rect key="frame" x="0.0" y="263" width="375" height="264"/>
-                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="F9K-jU-100" userLabel="ContainerView">
+                                <rect key="frame" x="0.0" y="44" width="375" height="243"/>
+                                <subviews>
+                                    <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="e9V-mk-xH0">
+                                        <rect key="frame" x="45" y="142" width="287" height="78"/>
+                                        <constraints>
+                                            <constraint firstAttribute="height" constant="78" id="gF5-G1-lKI"/>
+                                        </constraints>
+                                        <string key="text">Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. </string>
+                                        <color key="textColor" systemColor="labelColor" cocoaTouchSystemColor="darkTextColor"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="14"/>
+                                        <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
+                                        <userDefinedRuntimeAttributes>
+                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                                            <userDefinedRuntimeAttribute type="number" keyPath="lastLineFillPercent">
+                                                <integer key="value" value="40"/>
+                                            </userDefinedRuntimeAttribute>
+                                            <userDefinedRuntimeAttribute type="number" keyPath="linesCornerRadius">
+                                                <integer key="value" value="6"/>
+                                            </userDefinedRuntimeAttribute>
+                                        </userDefinedRuntimeAttributes>
+                                    </textView>
+                                    <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="avatar" translatesAutoresizingMaskIntoConstraints="NO" id="nMj-pU-5wJ">
+                                        <rect key="frame" x="141" y="20" width="93" height="93"/>
+                                        <color key="backgroundColor" red="0.56078431370000004" green="0.59607843140000005" blue="0.7843137255" alpha="0.90709546230000004" colorSpace="calibratedRGB"/>
+                                        <constraints>
+                                            <constraint firstAttribute="height" constant="93" id="gw9-nu-cKo"/>
+                                            <constraint firstAttribute="width" constant="93" id="zB6-Lp-IUt"/>
+                                        </constraints>
+                                        <userDefinedRuntimeAttributes>
+                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                                        </userDefinedRuntimeAttributes>
+                                    </imageView>
+                                </subviews>
+                                <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                                <constraints>
+                                    <constraint firstItem="nMj-pU-5wJ" firstAttribute="centerX" secondItem="F9K-jU-100" secondAttribute="centerX" id="9X4-2r-AKx"/>
+                                    <constraint firstItem="e9V-mk-xH0" firstAttribute="leading" secondItem="F9K-jU-100" secondAttribute="leading" constant="45" id="HvQ-HY-zYU"/>
+                                    <constraint firstItem="e9V-mk-xH0" firstAttribute="centerX" secondItem="F9K-jU-100" secondAttribute="centerX" constant="1" id="KcB-tG-NXa"/>
+                                    <constraint firstAttribute="height" constant="243" id="MIj-xq-gr1"/>
+                                    <constraint firstItem="e9V-mk-xH0" firstAttribute="top" secondItem="F9K-jU-100" secondAttribute="top" constant="142" id="Wcx-nZ-1lR"/>
+                                    <constraint firstAttribute="trailing" secondItem="e9V-mk-xH0" secondAttribute="trailing" constant="43" id="XbU-Og-rht"/>
+                                    <constraint firstItem="nMj-pU-5wJ" firstAttribute="top" secondItem="F9K-jU-100" secondAttribute="top" constant="20" id="hQL-cr-MaN"/>
+                                </constraints>
+                                <userDefinedRuntimeAttributes>
+                                    <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                                </userDefinedRuntimeAttributes>
+                            </view>
+                            <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="none" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="UCB-SP-lQk">
+                                <rect key="frame" x="0.0" y="287" width="375" height="282"/>
                                 <color key="separatorColor" red="0.1061807256" green="0.84678786989999999" blue="0.031482450150000001" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
                                 <prototypes>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" reuseIdentifier="CellIdentifier" rowHeight="120" id="2dN-Bd-tdy" customClass="Cell" customModule="SkeletonViewExample" customModuleProvider="target">
@@ -31,7 +75,7 @@
                                             <rect key="frame" x="0.0" y="0.0" width="375" height="120"/>
                                             <autoresizingMask key="autoresizingMask"/>
                                             <subviews>
-                                                <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="oiE-tt-nc2">
+                                                <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="avatar" translatesAutoresizingMaskIntoConstraints="NO" id="oiE-tt-nc2">
                                                     <rect key="frame" x="15" y="18" width="82" height="82"/>
                                                     <color key="backgroundColor" red="0.56078431370000004" green="0.59607843140000005" blue="0.7843137255" alpha="0.90709546230000004" colorSpace="calibratedRGB"/>
                                                     <constraints>
@@ -42,21 +86,28 @@
                                                         <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
                                                     </userDefinedRuntimeAttributes>
                                                 </imageView>
-                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="15" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="VhU-1t-AaI">
-                                                    <rect key="frame" x="118" y="29" width="237" height="20.5"/>
+                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="3" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="VhU-1t-AaI" userLabel="Label">
+                                                    <rect key="frame" x="118" y="29" width="237" height="18"/>
                                                     <constraints>
                                                         <constraint firstAttribute="height" relation="lessThanOrEqual" constant="71" id="HRL-cI-ieC"/>
                                                     </constraints>
-                                                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                                    <fontDescription key="fontDescription" type="system" pointSize="15"/>
                                                     <nil key="textColor"/>
                                                     <nil key="highlightedColor"/>
                                                     <userDefinedRuntimeAttributes>
                                                         <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                                                        <userDefinedRuntimeAttribute type="number" keyPath="linesCornerRadius">
+                                                            <integer key="value" value="5"/>
+                                                        </userDefinedRuntimeAttribute>
+                                                        <userDefinedRuntimeAttribute type="number" keyPath="lastLineFillPercent">
+                                                            <integer key="value" value="20"/>
+                                                        </userDefinedRuntimeAttribute>
                                                     </userDefinedRuntimeAttributes>
                                                 </label>
                                             </subviews>
                                             <constraints>
                                                 <constraint firstItem="oiE-tt-nc2" firstAttribute="leading" secondItem="7IN-F3-Mr6" secondAttribute="leadingMargin" id="1be-ak-AH1"/>
+                                                <constraint firstAttribute="bottom" secondItem="oiE-tt-nc2" secondAttribute="bottom" constant="20" id="CKt-oA-eBI"/>
                                                 <constraint firstItem="oiE-tt-nc2" firstAttribute="top" secondItem="7IN-F3-Mr6" secondAttribute="topMargin" constant="7" id="EKn-ST-LDX"/>
                                                 <constraint firstAttribute="trailingMargin" secondItem="VhU-1t-AaI" secondAttribute="trailing" constant="5" id="I7C-Bq-mfK"/>
                                                 <constraint firstItem="VhU-1t-AaI" firstAttribute="leading" secondItem="oiE-tt-nc2" secondAttribute="trailing" constant="21" id="Ojr-Kz-1k6"/>
@@ -76,63 +127,18 @@
                                     </tableViewCell>
                                 </prototypes>
                                 <userDefinedRuntimeAttributes>
-                                    <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                                    <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="NO"/>
                                 </userDefinedRuntimeAttributes>
                                 <connections>
                                     <outlet property="dataSource" destination="BYZ-38-t0r" id="Hxi-nC-gbY"/>
+                                    <outlet property="delegate" destination="BYZ-38-t0r" id="Z10-Nx-iGb"/>
                                 </connections>
                             </tableView>
-                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="F9K-jU-100">
-                                <rect key="frame" x="0.0" y="20" width="375" height="243"/>
-                                <subviews>
-                                    <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="e9V-mk-xH0">
-                                        <rect key="frame" x="45" y="142" width="287" height="78"/>
-                                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
-                                        <constraints>
-                                            <constraint firstAttribute="height" constant="78" id="gF5-G1-lKI"/>
-                                        </constraints>
-                                        <string key="text">Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. </string>
-                                        <fontDescription key="fontDescription" type="system" pointSize="14"/>
-                                        <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
-                                        <userDefinedRuntimeAttributes>
-                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
-                                            <userDefinedRuntimeAttribute type="number" keyPath="lastLineFillPercent">
-                                                <integer key="value" value="40"/>
-                                            </userDefinedRuntimeAttribute>
-                                        </userDefinedRuntimeAttributes>
-                                    </textView>
-                                    <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="avatar" translatesAutoresizingMaskIntoConstraints="NO" id="nMj-pU-5wJ">
-                                        <rect key="frame" x="141" y="20" width="93" height="93"/>
-                                        <color key="backgroundColor" red="0.56078431370000004" green="0.59607843140000005" blue="0.7843137255" alpha="0.90709546230000004" colorSpace="calibratedRGB"/>
-                                        <constraints>
-                                            <constraint firstAttribute="height" constant="93" id="gw9-nu-cKo"/>
-                                            <constraint firstAttribute="width" constant="93" id="zB6-Lp-IUt"/>
-                                        </constraints>
-                                        <userDefinedRuntimeAttributes>
-                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
-                                        </userDefinedRuntimeAttributes>
-                                    </imageView>
-                                </subviews>
-                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
-                                <constraints>
-                                    <constraint firstItem="nMj-pU-5wJ" firstAttribute="centerX" secondItem="F9K-jU-100" secondAttribute="centerX" id="9X4-2r-AKx"/>
-                                    <constraint firstItem="e9V-mk-xH0" firstAttribute="leading" secondItem="F9K-jU-100" secondAttribute="leading" constant="45" id="HvQ-HY-zYU"/>
-                                    <constraint firstItem="e9V-mk-xH0" firstAttribute="centerX" secondItem="F9K-jU-100" secondAttribute="centerX" constant="1" id="KcB-tG-NXa"/>
-                                    <constraint firstAttribute="height" constant="243" id="MIj-xq-gr1"/>
-                                    <constraint firstItem="e9V-mk-xH0" firstAttribute="top" secondItem="F9K-jU-100" secondAttribute="top" constant="142" id="Wcx-nZ-1lR"/>
-                                    <constraint firstAttribute="trailing" secondItem="e9V-mk-xH0" secondAttribute="trailing" constant="43" id="XbU-Og-rht"/>
-                                    <constraint firstItem="nMj-pU-5wJ" firstAttribute="top" secondItem="F9K-jU-100" secondAttribute="top" constant="20" id="hQL-cr-MaN"/>
-                                </constraints>
-                                <userDefinedRuntimeAttributes>
-                                    <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
-                                </userDefinedRuntimeAttributes>
-                            </view>
                             <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="XgY-1a-UGc">
-                                <rect key="frame" x="0.0" y="527" width="375" height="140"/>
+                                <rect key="frame" x="0.0" y="569" width="375" height="160"/>
                                 <subviews>
-                                    <segmentedControl opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="left" contentVerticalAlignment="top" segmentControlStyle="plain" selectedSegmentIndex="0" translatesAutoresizingMaskIntoConstraints="NO" id="xOL-Sq-r4i">
-                                        <rect key="frame" x="20" y="23" width="140" height="29"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                    <segmentedControl opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="top" segmentControlStyle="plain" selectedSegmentIndex="0" translatesAutoresizingMaskIntoConstraints="NO" id="xOL-Sq-r4i">
+                                        <rect key="frame" x="20" y="23" width="145" height="32"/>
                                         <segments>
                                             <segment title="Solid"/>
                                             <segment title="Gradient"/>
@@ -141,47 +147,88 @@
                                             <action selector="changeSkeletonType:" destination="BYZ-38-t0r" eventType="valueChanged" id="iAS-ab-0jP"/>
                                         </connections>
                                     </segmentedControl>
-                                    <switch opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" on="YES" translatesAutoresizingMaskIntoConstraints="NO" id="vz0-qg-GcZ">
-                                        <rect key="frame" x="310" y="21" width="49" height="31"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                    <switch opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" contentHorizontalAlignment="center" contentVerticalAlignment="center" on="YES" translatesAutoresizingMaskIntoConstraints="NO" id="vz0-qg-GcZ">
+                                        <rect key="frame" x="308" y="21" width="51" height="31"/>
                                         <connections>
                                             <action selector="changeAnimated:" destination="BYZ-38-t0r" eventType="valueChanged" id="w1G-gZ-RE0"/>
                                         </connections>
                                     </switch>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Animated" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="WHN-wR-TKt">
-                                        <rect key="frame" x="211" y="28" width="91" height="21"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Animated" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="WHN-wR-TKt">
+                                        <rect key="frame" x="229" y="26" width="73" height="21"/>
                                         <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                         <nil key="textColor"/>
                                         <nil key="highlightedColor"/>
                                     </label>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Color" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="7CF-rV-pK2">
-                                        <rect key="frame" x="32" y="89" width="52" height="21"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Color" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="7CF-rV-pK2">
+                                        <rect key="frame" x="20" y="73.666666666666629" width="90" height="21"/>
                                         <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                         <nil key="textColor"/>
                                         <nil key="highlightedColor"/>
                                     </label>
-                                    <view contentMode="scaleToFill" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="iGp-rp-t1d">
-                                        <rect key="frame" x="92" y="84" width="30" height="30"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                    <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="iGp-rp-t1d">
+                                        <rect key="frame" x="130" y="69" width="30" height="30"/>
                                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <constraints>
+                                            <constraint firstAttribute="width" constant="30" id="Q3k-B1-E88"/>
+                                            <constraint firstAttribute="height" constant="30" id="xOD-RY-U4u"/>
+                                        </constraints>
                                     </view>
-                                    <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Mde-Cm-CoS">
-                                        <rect key="frame" x="20" y="74" width="140" height="52"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Mde-Cm-CoS">
+                                        <rect key="frame" x="20" y="58" width="140" height="52"/>
+                                        <constraints>
+                                            <constraint firstAttribute="height" constant="52" id="3GX-2y-eQj"/>
+                                            <constraint firstAttribute="width" constant="140" id="6cC-Y1-RKs"/>
+                                        </constraints>
                                         <connections>
                                             <action selector="btnChangeColorTouchUpInside:" destination="BYZ-38-t0r" eventType="touchUpInside" id="cB8-Ik-LIJ"/>
                                         </connections>
                                     </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Tdu-YQ-saq">
+                                        <rect key="frame" x="263" y="69" width="94" height="30"/>
+                                        <state key="normal" title="Hide skeleton"/>
+                                        <connections>
+                                            <action selector="showOrHideSkeleton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Ma1-WX-Dzy"/>
+                                        </connections>
+                                    </button>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Fade Duration: 0.25 sec" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="mrw-PM-jJJ">
+                                        <rect key="frame" x="92.333333333333329" y="130" width="162.66666666666669" height="18"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                    <stepper opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="0.25" maximumValue="5" stepValue="0.25" translatesAutoresizingMaskIntoConstraints="NO" id="l4N-LL-ZrJ">
+                                        <rect key="frame" x="263" y="123" width="94" height="32"/>
+                                        <connections>
+                                            <action selector="transitionDurationStepperAction:" destination="BYZ-38-t0r" eventType="valueChanged" id="jPN-df-fNs"/>
+                                        </connections>
+                                    </stepper>
                                 </subviews>
-                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
                                 <constraints>
-                                    <constraint firstAttribute="height" constant="140" id="OH5-ja-ZlB"/>
+                                    <constraint firstItem="l4N-LL-ZrJ" firstAttribute="leading" secondItem="mrw-PM-jJJ" secondAttribute="trailing" constant="8" id="5iU-dO-qVc"/>
+                                    <constraint firstItem="mrw-PM-jJJ" firstAttribute="centerY" secondItem="l4N-LL-ZrJ" secondAttribute="centerY" id="9OM-mx-4Jo"/>
+                                    <constraint firstAttribute="trailing" secondItem="Tdu-YQ-saq" secondAttribute="trailing" constant="18" id="BQ0-S0-YMp"/>
+                                    <constraint firstItem="iGp-rp-t1d" firstAttribute="trailing" secondItem="Mde-Cm-CoS" secondAttribute="trailing" id="IJ3-CC-5M7"/>
+                                    <constraint firstAttribute="height" constant="160" id="OH5-ja-ZlB"/>
+                                    <constraint firstItem="Mde-Cm-CoS" firstAttribute="leading" secondItem="XgY-1a-UGc" secondAttribute="leading" constant="20" id="Rek-hz-pDw"/>
+                                    <constraint firstItem="xOL-Sq-r4i" firstAttribute="top" secondItem="XgY-1a-UGc" secondAttribute="top" constant="23" id="Udf-0g-bZm"/>
+                                    <constraint firstItem="Tdu-YQ-saq" firstAttribute="top" secondItem="vz0-qg-GcZ" secondAttribute="bottom" constant="17" id="WiR-yP-dyv"/>
+                                    <constraint firstItem="Mde-Cm-CoS" firstAttribute="centerY" secondItem="7CF-rV-pK2" secondAttribute="centerY" id="eaN-FA-4mF"/>
+                                    <constraint firstItem="iGp-rp-t1d" firstAttribute="centerY" secondItem="7CF-rV-pK2" secondAttribute="centerY" id="hBb-mp-AjF"/>
+                                    <constraint firstItem="l4N-LL-ZrJ" firstAttribute="top" secondItem="Tdu-YQ-saq" secondAttribute="bottom" constant="24" id="iA5-RB-pW2"/>
+                                    <constraint firstItem="vz0-qg-GcZ" firstAttribute="top" secondItem="XgY-1a-UGc" secondAttribute="top" constant="21" id="iad-6N-wNf"/>
+                                    <constraint firstItem="vz0-qg-GcZ" firstAttribute="leading" secondItem="WHN-wR-TKt" secondAttribute="trailing" constant="6" id="jgu-tV-gqO"/>
+                                    <constraint firstItem="WHN-wR-TKt" firstAttribute="centerY" secondItem="vz0-qg-GcZ" secondAttribute="centerY" id="kTu-fb-Bc8"/>
+                                    <constraint firstAttribute="trailing" secondItem="vz0-qg-GcZ" secondAttribute="trailing" constant="18" id="ktq-JT-uoR"/>
+                                    <constraint firstItem="xOL-Sq-r4i" firstAttribute="leading" secondItem="XgY-1a-UGc" secondAttribute="leading" constant="20" id="pY0-qd-xmK"/>
+                                    <constraint firstItem="l4N-LL-ZrJ" firstAttribute="trailing" secondItem="Tdu-YQ-saq" secondAttribute="trailing" id="ql2-Z9-dnv"/>
+                                    <constraint firstItem="iGp-rp-t1d" firstAttribute="leading" secondItem="7CF-rV-pK2" secondAttribute="trailing" constant="20" id="vWD-0m-dMp"/>
+                                    <constraint firstItem="7CF-rV-pK2" firstAttribute="centerY" secondItem="Tdu-YQ-saq" secondAttribute="centerY" id="x0d-LB-A4q"/>
+                                    <constraint firstItem="7CF-rV-pK2" firstAttribute="leading" secondItem="xOL-Sq-r4i" secondAttribute="leading" id="yEL-Nv-z76"/>
                                 </constraints>
                             </view>
                         </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
                         <constraints>
                             <constraint firstItem="F9K-jU-100" firstAttribute="trailing" secondItem="6Tk-OE-BBY" secondAttribute="trailing" id="1es-nY-bd3"/>
                             <constraint firstItem="F9K-jU-100" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" id="A3E-iv-1qp"/>
@@ -195,19 +242,61 @@
                             <constraint firstItem="XgY-1a-UGc" firstAttribute="bottom" secondItem="6Tk-OE-BBY" secondAttribute="bottom" id="vnZ-9k-MfI"/>
                         </constraints>
                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                        <userDefinedRuntimeAttributes>
+                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSkeletonable" value="YES"/>
+                        </userDefinedRuntimeAttributes>
                     </view>
+                    <tabBarItem key="tabBarItem" title="Item" id="wQY-ap-3n3"/>
                     <navigationItem key="navigationItem" id="BEI-dU-kr2"/>
                     <connections>
                         <outlet property="avatarImage" destination="nMj-pU-5wJ" id="9fa-Z7-vYi"/>
                         <outlet property="colorSelectedView" destination="iGp-rp-t1d" id="0Zm-9d-jRU"/>
+                        <outlet property="showOrHideSkeletonButton" destination="Tdu-YQ-saq" id="gkm-mB-zYD"/>
                         <outlet property="skeletonTypeSelector" destination="xOL-Sq-r4i" id="yTr-8L-I4Y"/>
                         <outlet property="switchAnimated" destination="vz0-qg-GcZ" id="d2R-8x-lRb"/>
                         <outlet property="tableview" destination="UCB-SP-lQk" id="XV0-KX-lAN"/>
+                        <outlet property="transitionDurationLabel" destination="mrw-PM-jJJ" id="BVK-Kl-5Q3"/>
+                        <outlet property="transitionDurationStepper" destination="l4N-LL-ZrJ" id="OJr-Ul-7XR"/>
                     </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="-482" y="-6"/>
+            <point key="canvasLocation" x="-2682.4000000000001" y="339.90147783251234"/>
+        </scene>
+        <!--Item-->
+        <scene sceneID="Cfc-AT-AS1">
+            <objects>
+                <viewController id="dv8-ph-Ehg" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Jwx-gI-Qod">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="812"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="Ao1-hk-zrH"/>
+                    </view>
+                    <tabBarItem key="tabBarItem" title="Item" id="iKp-9S-aib"/>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="M03-a6-GOC" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-1644" y="340"/>
+        </scene>
+        <!--Tab Bar Controller-->
+        <scene sceneID="U6k-MC-AHH">
+            <objects>
+                <tabBarController automaticallyAdjustsScrollViewInsets="NO" id="Va7-1y-Tel" sceneMemberID="viewController">
+                    <toolbarItems/>
+                    <tabBar key="tabBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="HSI-2O-RyO">
+                        <rect key="frame" x="0.0" y="0.0" width="1000" height="1000"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                    </tabBar>
+                    <connections>
+                        <segue destination="BYZ-38-t0r" kind="relationship" relationship="viewControllers" id="dL3-9L-KNU"/>
+                        <segue destination="dv8-ph-Ehg" kind="relationship" relationship="viewControllers" id="8QB-uV-gaF"/>
+                    </connections>
+                </tabBarController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="huq-Fh-0sW" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-2172" y="-555"/>
         </scene>
     </scenes>
     <resources>

Example/TableView/Constants.swift

@@ -0,0 +1,5 @@
+//  Copyright © 2018 SkeletonView. All rights reserved.
+
+import UIKit
+
+let colors = [(UIColor.skeletonDefault,"skeletonDefault"),(UIColor.turquoise,"turquoise"), (UIColor.emerald,"emerald"), (UIColor.peterRiver,"peterRiver"), (UIColor.amethyst,"amethyst"),(UIColor.wetAsphalt,"wetAsphalt"), (UIColor.nephritis,"nephritis"), (UIColor.belizeHole,"belizeHole"), (UIColor.wisteria,"wisteria"), (UIColor.midnightBlue,"midnightBlue"), (UIColor.sunFlower,"sunFlower"), (UIColor.carrot,"carrot"), (UIColor.alizarin,"alizarin"),(UIColor.clouds,"clouds"), (UIColor.concrete,"concrete"), (UIColor.flatOrange,"flatOrange"), (UIColor.pumpkin,"pumpkin"), (UIColor.pomegranate,"pomegranate"), (UIColor.silver,"silver"), (UIColor.asbestos,"asbestos")]

Example/TableView/HeaderFooterSection.swift

@@ -0,0 +1,44 @@
+// Copyright © 2020 SkeletonView. All rights reserved.
+
+import UIKit
+
+class HeaderFooterSection: UITableViewHeaderFooterView {
+    
+    lazy var titleLabel: UILabel = {
+        let label = UILabel()
+        
+        label.text = "      "
+        label.isSkeletonable = true
+        label.linesCornerRadius = 5
+        
+        return label
+    }()
+    
+    override init(reuseIdentifier: String?) {
+        super.init(reuseIdentifier: reuseIdentifier)
+        
+        isSkeletonable = true
+        
+        contentView.addSubview(titleLabel)
+
+        titleLabel.translatesAutoresizingMaskIntoConstraints = false
+        
+        NSLayoutConstraint.activate([
+            titleLabel.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 10),
+            titleLabel.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 10),
+            titleLabel.trailingAnchor.constraint(equalTo: contentView.trailingAnchor, constant: -10),
+            titleLabel.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -10)
+        ])
+        
+        backgroundView = UIView()
+        if #available(iOS 13.0, *) {
+            backgroundView?.backgroundColor = .systemBackground
+        } else {
+            backgroundView?.backgroundColor = .white
+        }
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+}

Example/TableView/ViewController.swift

@@ -0,0 +1,210 @@
+//
+//  ViewController.swift
+//  SkeletonViewExample
+//
+//  Created by Juanpe Catalán on 02/11/2017.
+//  Copyright © 2017 SkeletonView. All rights reserved.
+//
+
+import UIKit
+import SkeletonView
+
+class ViewController: UIViewController {
+    @IBOutlet weak var tableview: UITableView! {
+        didSet {
+            tableview.rowHeight = UITableView.automaticDimension
+            tableview.sectionHeaderHeight = UITableView.automaticDimension
+            tableview.sectionFooterHeight = UITableView.automaticDimension
+            tableview.estimatedRowHeight = 120.0
+            tableview.estimatedSectionFooterHeight = 20.0
+            tableview.estimatedSectionHeaderHeight = 20.0
+            tableview.register(HeaderFooterSection.self, forHeaderFooterViewReuseIdentifier: "HeaderIdentifier")
+            tableview.register(HeaderFooterSection.self, forHeaderFooterViewReuseIdentifier: "FooterIdentifier")
+        }
+    }
+    
+    @IBOutlet weak var avatarImage: UIImageView! {
+        didSet {
+            avatarImage.layer.cornerRadius = avatarImage.frame.width/2
+            avatarImage.layer.masksToBounds = true
+        } 
+    }
+    
+    @IBOutlet weak var colorSelectedView: UIView! {
+        didSet {
+            colorSelectedView.layer.cornerRadius = 5
+            colorSelectedView.layer.masksToBounds = true
+            colorSelectedView.backgroundColor = SkeletonAppearance.default.tintColor
+        }
+    }
+
+    @IBOutlet weak var switchAnimated: UISwitch!
+    @IBOutlet weak var skeletonTypeSelector: UISegmentedControl!
+    @IBOutlet weak var showOrHideSkeletonButton: UIButton!
+    @IBOutlet weak var transitionDurationLabel: UILabel!
+    @IBOutlet weak var transitionDurationStepper: UIStepper!
+    
+    var type: SkeletonType {
+        return skeletonTypeSelector.selectedSegmentIndex == 0 ? .solid : .gradient
+    }
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        tableview.isSkeletonable = true
+        transitionDurationStepper.value = 0.25
+        view.showAnimatedSkeleton()
+    }
+    
+    override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+    }
+
+    @IBAction func changeAnimated(_ sender: Any) {
+        if switchAnimated.isOn {
+            view.startSkeletonAnimation()
+        } else {
+            view.stopSkeletonAnimation()
+        }
+    }
+    
+    @IBAction func changeSkeletonType(_ sender: Any) {
+        refreshSkeleton()
+    }
+    
+    @IBAction func btnChangeColorTouchUpInside(_ sender: Any) {
+        showAlertPicker()
+    }
+    
+    @IBAction func showOrHideSkeleton(_ sender: Any) {
+        showOrHideSkeletonButton.setTitle((view.isSkeletonActive ? "Show skeleton" : "Hide skeleton"), for: .normal)
+        view.isSkeletonActive ? hideSkeleton() : showSkeleton()
+    }
+    
+    @IBAction func transitionDurationStepperAction(_ sender: Any) {
+        transitionDurationLabel.text = "Transition duration: \(transitionDurationStepper.value) sec"
+    }
+    
+    func showSkeleton() {
+        if type == .gradient {
+            let gradient = SkeletonGradient(baseColor: colorSelectedView.backgroundColor!)
+            if switchAnimated.isOn {
+                view.showAnimatedGradientSkeleton(usingGradient: gradient, transition: .crossDissolve(transitionDurationStepper.value))
+            }
+            else {
+                view.showGradientSkeleton(usingGradient: gradient, transition: .crossDissolve(transitionDurationStepper.value))
+            }
+        }
+        else {
+            if switchAnimated.isOn {
+                view.showAnimatedSkeleton(transition: .crossDissolve(transitionDurationStepper.value))
+            }
+            else {
+                view.showSkeleton(transition: .crossDissolve(transitionDurationStepper.value))
+            }
+        }
+    }
+    
+    func hideSkeleton() {
+        view.hideSkeleton(transition: .crossDissolve(transitionDurationStepper.value))
+    }
+    
+    func refreshSkeleton() {
+        if type == .gradient { showOrUpdateGradientSkeleton() }
+        else { showOrUpdatepdateSolidSkeleton() }
+    }
+    
+    func showOrUpdatepdateSolidSkeleton() {
+        if switchAnimated.isOn {
+            view.updateAnimatedSkeleton(usingColor: colorSelectedView.backgroundColor!)
+        } else {
+            view.updateSkeleton(usingColor: colorSelectedView.backgroundColor!)
+        }
+    }
+    
+    func showOrUpdateGradientSkeleton() {
+        let gradient = SkeletonGradient(baseColor: colorSelectedView.backgroundColor!)
+        if switchAnimated.isOn {
+            view.updateAnimatedGradientSkeleton(usingGradient: gradient)
+        } else {
+            view.updateGradientSkeleton(usingGradient: gradient)
+        }
+    }
+    
+    func showAlertPicker() {
+        let alertView = UIAlertController(title: "Select color", message: "\n\n\n\n\n\n", preferredStyle: .alert)
+        
+        let pickerView = UIPickerView(frame: CGRect(x: 0, y: 50, width: 260, height: 115))
+        pickerView.dataSource = self
+        pickerView.delegate = self
+        
+        alertView.view.addSubview(pickerView)
+        
+        let action = UIAlertAction(title: "OK", style: .default) { [unowned pickerView, unowned self] _ in
+            let row = pickerView.selectedRow(inComponent: 0)
+            self.colorSelectedView.backgroundColor = colors[row].0
+            self.refreshSkeleton()
+        }
+        alertView.addAction(action)
+        
+        let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)
+        alertView.addAction(cancelAction)
+        
+        present(alertView, animated: false, completion: {
+            pickerView.frame.size.width = alertView.view.frame.size.width
+        })
+    }
+}
+
+extension ViewController: UIPickerViewDelegate, UIPickerViewDataSource {
+    func numberOfComponents(in pickerView: UIPickerView) -> Int {
+        return 1
+    }
+    
+    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
+       return colors.count
+    }
+    
+    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
+        return colors[row].1
+    }
+}
+
+extension ViewController: SkeletonTableViewDataSource {
+    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 10
+    }
+    
+    func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier {
+        return "CellIdentifier"
+    }
+    
+    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "CellIdentifier", for: indexPath) as! Cell
+        cell.label1.text = "cell => \(indexPath.row)"
+        return cell
+    }
+}
+
+extension ViewController: SkeletonTableViewDelegate {
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForHeaderInSection section: Int) -> ReusableHeaderFooterIdentifier? {
+        return "HeaderIdentifier"
+    }
+
+    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
+        let header = tableView
+            .dequeueReusableHeaderFooterView(withIdentifier: "HeaderIdentifier") as! HeaderFooterSection
+        header.titleLabel.text = "header => \(section)"
+        return header
+    }
+
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForFooterInSection section: Int) -> ReusableHeaderFooterIdentifier? {
+        return "FooterIdentifier"
+    }
+
+    func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
+        let footer = tableView
+            .dequeueReusableHeaderFooterView(withIdentifier: "FooterIdentifier") as! HeaderFooterSection
+        footer.titleLabel.text = "footer => \(section)"
+        return footer
+    }
+}

Example/ViewController.swift

@@ -1,141 +0,0 @@
-//
-//  ViewController.swift
-//  SkeletonViewExample
-//
-//  Created by Juanpe Catalán on 02/11/2017.
-//  Copyright © 2017 SkeletonView. All rights reserved.
-//
-
-import UIKit
-import SkeletonView
-
-let colors = [(UIColor.turquoise,"turquoise"), (UIColor.emerald,"emerald"), (UIColor.peterRiver,"peterRiver"), (UIColor.amethyst,"amethyst"),(UIColor.wetAsphalt,"wetAsphalt"), (UIColor.nephritis,"nephritis"), (UIColor.belizeHole,"belizeHole"), (UIColor.wisteria,"wisteria"), (UIColor.midnightBlue,"midnightBlue"), (UIColor.sunFlower,"sunFlower"), (UIColor.carrot,"carrot"), (UIColor.alizarin,"alizarin"),(UIColor.clouds,"clouds"), (UIColor.concrete,"concrete"), (UIColor.flatOrange,"flatOrange"), (UIColor.pumpkin,"pumpkin"), (UIColor.pomegranate,"pomegranate"), (UIColor.silver,"silver"), (UIColor.asbestos,"asbestos")]
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var tableview: UITableView!
-    
-    @IBOutlet weak var avatarImage: UIImageView! {
-        didSet {
-            avatarImage.layer.cornerRadius = avatarImage.frame.width/2
-            avatarImage.layer.masksToBounds = true
-        } 
-    }
-    
-    @IBOutlet weak var colorSelectedView: UIView! {
-        didSet {
-            colorSelectedView.layer.cornerRadius = 5
-            colorSelectedView.layer.masksToBounds = true
-            colorSelectedView.backgroundColor = SkeletonDefaultConfig.tintColor
-        }
-    }
-
-    @IBOutlet weak var switchAnimated: UISwitch!
-    @IBOutlet weak var skeletonTypeSelector: UISegmentedControl!
-    
-    var type: SkeletonType {
-        return skeletonTypeSelector.selectedSegmentIndex == 0 ? .solid : .gradient
-    }
-    
-    override func viewDidAppear(_ animated: Bool) {
-        super.viewDidAppear(animated)
-        view.showAnimatedSkeleton()
-    }
-
-    @IBAction func changeAnimated(_ sender: Any) {
-        if switchAnimated.isOn {
-            view.startSkeletonAnimation()
-        } else {
-            view.stopSkeletonAnimation()
-        }
-    }
-    
-    @IBAction func changeSkeletonType(_ sender: Any) {
-        refreshSkeleton()
-    }
-    
-    @IBAction func btnChangeColorTouchUpInside(_ sender: Any) {
-        showAlertPicker()
-    }
-    
-    func refreshSkeleton() {
-        self.view.hideSkeleton()
-        if type == .gradient { showGradientSkeleton() }
-        else { showSolidSkeleton() }
-    }
-    
-    func showSolidSkeleton() {
-        if switchAnimated.isOn {
-            view.showAnimatedSkeleton(usingColor: colorSelectedView.backgroundColor!)
-        } else {
-            view.showSkeleton(usingColor: colorSelectedView.backgroundColor!)
-        }
-    }
-    
-    func showGradientSkeleton() {
-        let gradient = SkeletonGradient(baseColor: colorSelectedView.backgroundColor!)
-        if switchAnimated.isOn {
-            view.showAnimatedGradientSkeleton(usingGradient: gradient)
-        } else {
-            view.showGradientSkeleton(usingGradient: gradient)
-        }
-    }
-    
-    func showAlertPicker() {
-       
-        let alertView = UIAlertController(title: "Select color", message: "\n\n\n\n\n\n", preferredStyle: .alert)
-        
-        let pickerView = UIPickerView(frame: CGRect(x: 0, y: 50, width: 260, height: 115))
-        pickerView.dataSource = self
-        pickerView.delegate = self
-        
-        alertView.view.addSubview(pickerView)
-        
-        let action = UIAlertAction(title: "OK", style: .default) { [unowned pickerView, unowned self] _ in
-            let row = pickerView.selectedRow(inComponent: 0)
-            self.colorSelectedView.backgroundColor = colors[row].0
-            self.refreshSkeleton()
-        }
-        alertView.addAction(action)
-        
-        let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)
-        alertView.addAction(cancelAction)
-        
-        present(alertView, animated: false, completion: {
-            pickerView.frame.size.width = alertView.view.frame.size.width
-        })
-    }
-}
-
-extension ViewController: UIPickerViewDelegate, UIPickerViewDataSource {
-    
-    func numberOfComponents(in pickerView: UIPickerView) -> Int {
-        return 1
-    }
-    
-    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
-       return colors.count
-    }
-    
-    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
-        return colors[row].1
-    }
-}
-
-extension ViewController: SkeletonTableViewDataSource {
-    
-    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
-        return 9
-    }
-    
-    func collectionSkeletonView(_ skeletonView: UITableView, cellIdenfierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier {
-        return "CellIdentifier"
-    }
-    
-    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
-        let cell = tableView.dequeueReusableCell(withIdentifier: "CellIdentifier", for: indexPath) as! Cell
-        cell.label1.text = "cell => \(indexPath.row)"
-        return cell
-    }
-}
-

Gemfile

@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+
+gem "fastlane"
+gem 'cocoapods', '~> 1.7.0.beta.2'

Gemfile.lock

@@ -0,0 +1,212 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    CFPropertyList (3.0.0)
+    activesupport (4.2.11.1)
+      i18n (~> 0.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
+      tzinfo (~> 1.1)
+    addressable (2.6.0)
+      public_suffix (>= 2.0.2, < 4.0)
+    atomos (0.1.3)
+    babosa (1.0.2)
+    claide (1.0.2)
+    cocoapods (1.7.5)
+      activesupport (>= 4.0.2, < 5)
+      claide (>= 1.0.2, < 2.0)
+      cocoapods-core (= 1.7.5)
+      cocoapods-deintegrate (>= 1.0.3, < 2.0)
+      cocoapods-downloader (>= 1.2.2, < 2.0)
+      cocoapods-plugins (>= 1.0.0, < 2.0)
+      cocoapods-search (>= 1.0.0, < 2.0)
+      cocoapods-stats (>= 1.0.0, < 2.0)
+      cocoapods-trunk (>= 1.3.1, < 2.0)
+      cocoapods-try (>= 1.1.0, < 2.0)
+      colored2 (~> 3.1)
+      escape (~> 0.0.4)
+      fourflusher (>= 2.3.0, < 3.0)
+      gh_inspector (~> 1.0)
+      molinillo (~> 0.6.6)
+      nap (~> 1.0)
+      ruby-macho (~> 1.4)
+      xcodeproj (>= 1.10.0, < 2.0)
+    cocoapods-core (1.7.5)
+      activesupport (>= 4.0.2, < 6)
+      fuzzy_match (~> 2.0.4)
+      nap (~> 1.0)
+    cocoapods-deintegrate (1.0.4)
+    cocoapods-downloader (1.2.2)
+    cocoapods-plugins (1.0.0)
+      nap
+    cocoapods-search (1.0.0)
+    cocoapods-stats (1.1.0)
+    cocoapods-trunk (1.3.1)
+      nap (>= 0.8, < 2.0)
+      netrc (~> 0.11)
+    cocoapods-try (1.1.0)
+    colored (1.2)
+    colored2 (3.1.2)
+    commander-fastlane (4.4.6)
+      highline (~> 1.7.2)
+    concurrent-ruby (1.1.5)
+    declarative (0.0.10)
+    declarative-option (0.1.0)
+    digest-crc (0.4.1)
+    domain_name (0.5.20190701)
+      unf (>= 0.0.5, < 1.0.0)
+    dotenv (2.7.4)
+    emoji_regex (1.0.1)
+    escape (0.0.4)
+    excon (0.71.0)
+    faraday (0.15.4)
+      multipart-post (>= 1.2, < 3)
+    faraday-cookie_jar (0.0.6)
+      faraday (>= 0.7.4)
+      http-cookie (~> 1.0.0)
+    faraday_middleware (0.13.1)
+      faraday (>= 0.7.4, < 1.0)
+    fastimage (2.1.5)
+    fastlane (2.128.0)
+      CFPropertyList (>= 2.3, < 4.0.0)
+      addressable (>= 2.3, < 3.0.0)
+      babosa (>= 1.0.2, < 2.0.0)
+      bundler (>= 1.12.0, < 3.0.0)
+      colored
+      commander-fastlane (>= 4.4.6, < 5.0.0)
+      dotenv (>= 2.1.1, < 3.0.0)
+      emoji_regex (>= 0.1, < 2.0)
+      excon (>= 0.45.0, < 1.0.0)
+      faraday (~> 0.9)
+      faraday-cookie_jar (~> 0.0.6)
+      faraday_middleware (~> 0.9)
+      fastimage (>= 2.1.0, < 3.0.0)
+      gh_inspector (>= 1.1.2, < 2.0.0)
+      google-api-client (>= 0.21.2, < 0.24.0)
+      google-cloud-storage (>= 1.15.0, < 2.0.0)
+      highline (>= 1.7.2, < 2.0.0)
+      json (< 3.0.0)
+      jwt (~> 2.1.0)
+      mini_magick (>= 4.9.4, < 5.0.0)
+      multi_xml (~> 0.5)
+      multipart-post (~> 2.0.0)
+      plist (>= 3.1.0, < 4.0.0)
+      public_suffix (~> 2.0.0)
+      rubyzip (>= 1.2.2, < 2.0.0)
+      security (= 0.1.3)
+      simctl (~> 1.6.3)
+      slack-notifier (>= 2.0.0, < 3.0.0)
+      terminal-notifier (>= 2.0.0, < 3.0.0)
+      terminal-table (>= 1.4.5, < 2.0.0)
+      tty-screen (>= 0.6.3, < 1.0.0)
+      tty-spinner (>= 0.8.0, < 1.0.0)
+      word_wrap (~> 1.0.0)
+      xcodeproj (>= 1.8.1, < 2.0.0)
+      xcpretty (~> 0.3.0)
+      xcpretty-travis-formatter (>= 0.0.3)
+    fourflusher (2.3.1)
+    fuzzy_match (2.0.4)
+    gh_inspector (1.1.3)
+    google-api-client (0.23.9)
+      addressable (~> 2.5, >= 2.5.1)
+      googleauth (>= 0.5, < 0.7.0)
+      httpclient (>= 2.8.1, < 3.0)
+      mime-types (~> 3.0)
+      representable (~> 3.0)
+      retriable (>= 2.0, < 4.0)
+      signet (~> 0.9)
+    google-cloud-core (1.3.0)
+      google-cloud-env (~> 1.0)
+    google-cloud-env (1.2.0)
+      faraday (~> 0.11)
+    google-cloud-storage (1.16.0)
+      digest-crc (~> 0.4)
+      google-api-client (~> 0.23)
+      google-cloud-core (~> 1.2)
+      googleauth (>= 0.6.2, < 0.10.0)
+    googleauth (0.6.7)
+      faraday (~> 0.12)
+      jwt (>= 1.4, < 3.0)
+      memoist (~> 0.16)
+      multi_json (~> 1.11)
+      os (>= 0.9, < 2.0)
+      signet (~> 0.7)
+    highline (1.7.10)
+    http-cookie (1.0.3)
+      domain_name (~> 0.5)
+    httpclient (2.8.3)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    json (2.3.1)
+    jwt (2.1.0)
+    memoist (0.16.0)
+    mime-types (3.2.2)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2019.0331)
+    mini_magick (4.9.5)
+    minitest (5.11.3)
+    molinillo (0.6.6)
+    multi_json (1.13.1)
+    multi_xml (0.6.0)
+    multipart-post (2.0.0)
+    nanaimo (0.2.6)
+    nap (1.1.0)
+    naturally (2.2.0)
+    netrc (0.11.0)
+    os (1.0.1)
+    plist (3.5.0)
+    public_suffix (2.0.5)
+    representable (3.0.4)
+      declarative (< 0.1.0)
+      declarative-option (< 0.2.0)
+      uber (< 0.2.0)
+    retriable (3.1.2)
+    rouge (2.0.7)
+    ruby-macho (1.4.0)
+    rubyzip (1.3.0)
+    security (0.1.3)
+    signet (0.11.0)
+      addressable (~> 2.3)
+      faraday (~> 0.9)
+      jwt (>= 1.5, < 3.0)
+      multi_json (~> 1.10)
+    simctl (1.6.5)
+      CFPropertyList
+      naturally
+    slack-notifier (2.3.2)
+    terminal-notifier (2.0.0)
+    terminal-table (1.8.0)
+      unicode-display_width (~> 1.1, >= 1.1.1)
+    thread_safe (0.3.6)
+    tty-cursor (0.7.0)
+    tty-screen (0.7.0)
+    tty-spinner (0.9.1)
+      tty-cursor (~> 0.7)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    uber (0.1.0)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.7.6)
+    unicode-display_width (1.6.0)
+    word_wrap (1.0.0)
+    xcodeproj (1.11.0)
+      CFPropertyList (>= 2.3.3, < 4.0)
+      atomos (~> 0.1.3)
+      claide (>= 1.0.2, < 2.0)
+      colored2 (~> 3.1)
+      nanaimo (~> 0.2.6)
+    xcpretty (0.3.0)
+      rouge (~> 2.0.7)
+    xcpretty-travis-formatter (1.0.0)
+      xcpretty (~> 0.2, >= 0.0.7)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  cocoapods (~> 1.7.0.beta.2)
+  fastlane
+
+BUNDLED WITH
+   2.0.1

Package.swift

@@ -0,0 +1,23 @@
+// swift-tools-version:5.0
+
+import PackageDescription
+
+let package = Package(
+    name: "SkeletonView",
+	platforms: [
+		.iOS(.v9),
+		.tvOS(.v9)
+	],
+    products: [
+        .library(
+            name: "SkeletonView",
+            targets: ["SkeletonView"])
+	],
+	targets: [
+		.target(
+			name: "SkeletonView",
+			dependencies: [],
+			path: "Sources")
+	],
+	swiftLanguageVersions: [.v5]
+)

README.md

@@ -1,47 +1,53 @@
-![](Assets/header.jpg)
+![](Assets/header2.jpg)
 
 <p align="center">
-    <a href="https://travis-ci.org/Juanpe/SkeletonView">
-      <img src="https://img.shields.io/travis/Juanpe/SkeletonView.svg">
-    </a>
-    <img src="https://img.shields.io/badge/Swift-4.0-orange.svg" />
-    <a href="https://cocoapods.org/pods/SkeletonView">
-        <img src="https://img.shields.io/cocoapods/v/SkeletonView.svg" alt="CocoaPods" />
-    </a>
-    <a href="https://github.com/Carthage/Carthage">
-        <img src="https://img.shields.io/badge/carthage-compatible-4BC51D.svg?style=flat" alt="Carthage" />
+    <a href="https://github.com/Juanpe/SkeletonView/workflows/build">
+      <img src="https://github.com/Juanpe/SkeletonView/workflows/build/badge.svg">
     </a>
+    <a href="https://codebeat.co/projects/github-com-juanpe-skeletonview-master"><img alt="codebeat badge" src="https://codebeat.co/badges/f854fdfd-31e5-4689-ba04-075d83653e60" /></a>
+    <img src="http://img.shields.io/badge/dependency%20manager-swiftpm%2Bcocoapods%2Bcarthage-green" />
+    <img src="https://img.shields.io/badge/platforms-ios%2Btvos-green" />
+    <a href="https://badge.bow-swift.io/recipe?name=SkeletonView&description=An%20elegant%20way%20to%20show%20users%20that%20something%20is%20happening%20and%20also%20prepare%20them%20to%20which%20contents%20he%20is%20waiting&url=https://github.com/juanpe/skeletonview&owner=Juanpe&avatar=https://avatars0.githubusercontent.com/u/1409041?v=4&tag=1.8.7"><img src="https://raw.githubusercontent.com/bow-swift/bow-art/master/badges/nef-playgrounds-badge.svg" alt="SkeletonView Playground" style="height:20px"></a>   
+    <br/>
     <a href="https://twitter.com/JuanpeCatalan">
         <img src="https://img.shields.io/badge/contact-@JuanpeCatalan-blue.svg?style=flat" alt="Twitter: @JuanpeCatalan" />
     </a>
-    <a href="https://opensource.org/licenses/MIT">
-      <img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="License" />
-    </a>
     <a href="https://twitter.com/intent/tweet?text=Wow%20This%20library%20is%20awesome:&url=https%3A%2F%2Fgithub.com%2FJuanpe%2FSkeletonView">
       <img src="https://img.shields.io/twitter/url/https/github.com/Juanpe/SkeletonView.svg?style=social" alt="License" />
     </a>
 </p>
 
-Today almost all apps have async processes, such as Api requests, long running processes, etc. And while the processes are working, usually developers place a loading view to show users that something is going on.
+<br/>
+<br/>
 
-```SkeletonView``` has been conceived to address this need, an elegant way to show users that something is happening and also prepare them to which contents he is waiting.
+**🌎 README is available in other languages: [🇨🇳](https://github.com/Juanpe/SkeletonView/blob/master/README_zh.md) [🇧🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_pt-br.md) [🇰🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_ko.md) [🇫🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_fr.md)**
+
+Today almost all apps have async processes, such as API requests, long running processes, etc. While the processes are working, usually developers place a loading view to show users that something is going on.
+
+```SkeletonView``` has been conceived to address this need, an elegant way to show users that something is happening and also prepare them for which contents are waiting.
 
 Enjoy it! 🙂
 
 * [Features](#-features)
-* [Requirements](#-supported-os--sdk-versions)
-* [Example Project](#-example)
+* [Guides](#-guides)
 * [Installation](#-installation)
   * [Cocoapods](#using-cocoapods)
   * [Carthage](#using-carthage)
+  * [SPM](#using-swift-package-manager)
 * [How to use](#-how-to-use)
   * [Collections](#-collections)
   * [Multiline text](#-multiline-text)
   * [Custom colors](#-custom-colors)
+  * [Appearance](#-appearance)
   * [Custom animations](#-custom-animations)
+  * [Transitions](#-transitions)
   * [Hierarchy](#-hierarchy)
+  * [Debug](#-debug)
 * [Documentation](#-documentation)
-* [Contributed](#-contributed)
+* [Supported OS & SDK Versions](#-supported-os--sdk-versions)
+* [Next steps](#-next-steps)
+* [Contributing](#%EF%B8%8F-contributing)
+* [Mentions](#-mentions)
 * [Author](#-author)
 * [License](#-license)
 
@@ -56,16 +62,11 @@ Enjoy it! 🙂
 - [x] Simple Swift syntax
 - [x] Lightweight readable codebase
 
-### 📋 Supported OS & SDK Versions
+## 🎬 Guides
 
-* iOS 9.0+
-* Swift 4 (Swift 3 compatible)
-
-### 🔮 Example
-
-To run the example project, clone the repo and run `SkeletonViewExample` target.
-
-![](Assets/demoApp2.png)
+| [![](https://img.youtube.com/vi/75kgOhWsPNA/maxresdefault.jpg)](https://youtu.be/75kgOhWsPNA)|[![](https://img.youtube.com/vi/MVCiM_VdxVA/maxresdefault.jpg)](https://youtu.be/MVCiM_VdxVA)|[![](https://img.youtube.com/vi/Qq3Evspeea8/maxresdefault.jpg)](https://youtu.be/Qq3Evspeea8)|[![](https://img.youtube.com/vi/ZOoPtBwDRT0/maxresdefault.jpg)](https://youtu.be/ZOoPtBwDRT0)
+|:---:  | :---: |:---:  | :---: 
+|[**SkeletonView Guides - Getting started**](https://youtu.be/75kgOhWsPNA)|[**How to Create Loading View with Skeleton View in Swift 5.2**](https://youtu.be/MVCiM_VdxVA) <br/> by iKh4ever Studio|[**Create Skeleton Loading View in App (Swift 5) - Xcode 11, 2020**](https://youtu.be/Qq3Evspeea8) <br/> by iOS Academy| [**Add An Elegant Loading Animation in Swift***](https://youtu.be/ZOoPtBwDRT0) <br/> by Gary Tokman
 
 ## 📲 Installation
 
@@ -85,6 +86,18 @@ Edit your `Cartfile` and specify the dependency:
 github "Juanpe/SkeletonView"
 ```
 
+#### Using [Swift Package Manager](https://github.com/apple/swift-package-manager)
+
+Once you have your Swift package set up, adding `SkeletonView` as a dependency is as easy as adding it to the `dependencies` value of your `Package.swift`.
+
+```swift
+  dependencies: [
+    .package(url: "https://github.com/Juanpe/SkeletonView.git", from: "1.7.0")
+  ]
+```
+
+
+
 ## 🐒 How to use
 
 Only **3** steps needed to use `SkeletonView`:
@@ -149,9 +162,38 @@ avatarImageView.isSkeletonable = true
 > **IMPORTANT!**
 >>```SkeletonView``` is recursive, so if you want show the skeleton in all skeletonable views, you only need to call the show method in the main container view. For example, with UIViewControllers
 
+### Extra
+
+#### Skeleton views layout
+
+Sometimes skeleton layout may not fit your layout because the parent view bounds have changed. ~For example, rotating the device.~
+
+You can relayout the skeleton views like so:
+
+```swift
+override func viewDidLayoutSubviews() {
+    view.layoutSkeletonIfNeeded()
+}
+```
+
+⚠️⚠️ You shouldn't call this method. From *version 1.8.1* you don't need to call this method, the library does automatically. So, you can use this method *ONLY* in the cases when you need to update the layout of the skeleton manually.
+
+#### Update skeleton configuration
+
+You can change the skeleton configuration at any time like its colour, animation, etc. with the following methods:
+
+```swift
+(1) view.updateSkeleton()                 // Solid
+(2) view.updateGradientSkeleton()         // Gradient
+(3) view.updateAnimatedSkeleton()         // Solid animated
+(4) view.updateAnimatedGradientSkeleton() // Gradient animated
+```
+
 ### 🌿 Collections
 
- Currently, ```SkeletonView``` only is compatible with ```UITableView```. We are working hard to support ```UICollectionView``` too 💪🏼
+```SkeletonView``` is compatible with ```UITableView``` and ```UICollectionView```.
+
+#### UITableView
 
 If you want to show the skeleton in a ```UITableView```, you need to conform to ```SkeletonTableViewDataSource``` protocol.
 
@@ -159,7 +201,9 @@ If you want to show the skeleton in a ```UITableView```, you need to conform to
 public protocol SkeletonTableViewDataSource: UITableViewDataSource {
     func numSections(in collectionSkeletonView: UITableView) -> Int
     func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
-    func collectionSkeletonView(_ skeletonView: UITableView, cellIdenfierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+    func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForHeaderInSection section: Int) -> ReusableHeaderFooterIdentifier?
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForFooterInSection section: Int) -> ReusableHeaderFooterIdentifier?
 }
 ```
 As you can see, this protocol inherits from ```UITableViewDataSource```, so you can replace this protocol with the skeleton protocol.
@@ -177,18 +221,53 @@ func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection s
 // It calculates how many cells need to populate whole tableview
 ```
 
+``` swift
+func collectionSkeletonView(_ skeletonView: UITableView, identifierForHeaderInSection section: Int) -> ReusableHeaderFooterIdentifier?
+// Default: nil
+```
+
+``` swift
+func collectionSkeletonView(_ skeletonView: UITableView, identifierForFooterInSection section: Int) -> ReusableHeaderFooterIdentifier?
+// Default: nil
+```
+
 There is only one method you need to implement to let Skeleton know the cell identifier. This method doesn't have default implementation:
  ``` swift
- func collectionSkeletonView(_ skeletonView: UITableView, cellIdenfierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+ func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
  ```
 
 **Example**
  ``` swift
- func collectionSkeletonView(_ skeletonView: UITableView, cellIdenfierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier {
+ func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier {
     return "CellIdentifier"
 }
  ```
 
+> **IMPORTANT!**
+> If you are using resizable cells (`tableView.rowHeight = UITableViewAutomaticDimension` ), it's mandatory define the `estimatedRowHeight`.
+
+👩🏼‍🏫  **How specify which elements are skeletonables?**
+
+Here is an illustration that shows how you should specify which elements are skeletonables when you are using an `UITableView`:
+
+![](Assets/tableview_scheme.png)
+
+As you can see, we have to make skeletonable the tableview, the cell and the UI elements, but we don't need to set as skeletonable the `contentView`
+
+####  UICollectionView
+
+For ```UICollectionView```, you need to conform to ```SkeletonCollectionViewDataSource``` protocol.
+
+``` swift
+public protocol SkeletonCollectionViewDataSource: UICollectionViewDataSource {
+    func numSections(in collectionSkeletonView: UICollectionView) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, numberOfItemsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, cellIdentifierForItemAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+```
+
+The rest of the process is the same as ```UITableView```
+
 ### 📰 Multiline text
 
 
@@ -197,17 +276,27 @@ There is only one method you need to implement to let Skeleton know the cell ide
 When using elements with text, ```SkeletonView``` draws lines to simulate text.
 Besides, you can decide how many lines you want. If  ```numberOfLines``` is set to zero, it will calculate how many lines needed to populate the whole skeleton and it will be drawn. Instead, if you set it to one, two or any number greater than zero, it will only draw this number of lines.
 
-**NEW** Now, you can set the filling percent of the last line. **Default: 80%**
+##### 🎛 Customize
 
-To modify the percent **using code**, set the property:
+You can set some properties for multilines elements.
+
+
+| Property | Values | Default | Preview
+| ------- | ------- |------- | -------
+| **Filling percent** of the last line. | `0...100` | `70%` | ![](Assets/multiline_lastline.png)
+| **Corner radius** of lines. (**NEW**) | `0...10` | `0` | ![](Assets/multiline_corner.png)
+
+
+
+To modify the percent or radius **using code**, set the properties:
 ```swift
 descriptionTextView.lastLineFillPercent = 50
+descriptionTextView.linesCornerRadius = 5
 ```
 
 Or, if you prefer use **IB/Storyboard**:
 
-![](Assets/lastline_storyboard.png)
-
+![](Assets/multiline_customize.png)
 
 ### 🎨 Custom colors
 
@@ -232,9 +321,42 @@ Besides, ```SkeletonView``` features 20 flat colors 🤙🏼
 ![](Assets/flatcolors.png)
 ###### Image captured from website [https://flatuicolors.com](https://flatuicolors.com)
 
+### 🦋 Appearance
+
+**NEW** The skeletons have a default appearance. So, when you don't specify the color, gradient or multilines properties, `SkeletonView` uses the default values.
+
+Default values:
+- **tintColor**: UIColor
+    - *default: `.skeletonDefault` (same as `.clouds` but adaptive to dark mode)*
+- **gradient**: SkeletonGradient
+  - *default: `SkeletonGradient(baseColor: .skeletonDefault)`*
+- **multilineHeight**: CGFloat
+  - *default: 15*
+- **multilineSpacing**: CGFloat
+  - *default: 10*
+- **multilineLastLineFillPercent**: Int
+  - *default: 70*
+- **multilineCornerRadius**: Int
+  - *default: 0*
+- **skeletonCornerRadius**: CGFloat (IBInspectable)  (Make your skeleton view with corner)
+  - *default: 0*
+
+To get these default values you can use `SkeletonAppearance.default`. Using this property you can set the values as well:
+```Swift
+SkeletonAppearance.default.multilineHeight = 20
+SkeletonAppearance.default.tintColor = .green
+```
+
+You can also specifiy these line appearance properties on a per-label basis:
+- **lastLineFillPercent**: Int
+- **linesCornerRadius**: Int
+- **skeletonLineSpacing**: CGFloat
+- **skeletonPaddingInsets**: UIEdgeInsets
+
+
 ### 🤓 Custom animations
 
-Now, ```SkeletonView``` has two built-in animations, *pulse* for solid skeletons and *sliding* for gradients.
+```SkeletonView``` has two built-in animations, *pulse* for solid skeletons and *sliding* for gradients.
 
 Besides, if you want to do your own skeleton animation, it's really easy.
 
@@ -256,7 +378,7 @@ view.showAnimatedSkeleton { (layer) -> CAAnimation in
 }
 ```
 
-**NEW** It's available ```SkeletonAnimationBuilder```. It's a builder to make ```SkeletonLayerAnimation```.
+It's available ```SkeletonAnimationBuilder```. It's a builder to make ```SkeletonLayerAnimation```.
 
 Today, you can create **sliding animations** for gradients, deciding the **direction** and setting the **duration** of the animation (default = 1.5s).
 
@@ -274,7 +396,7 @@ view.showAnimatedGradientSkeleton(usingGradient: gradient, animation: animation)
 |------- | -------
 | .leftRight | ![](Assets/sliding_left_to_right.gif)
 | .rightLeft | ![](Assets/sliding_right_to_left.gif)
-| .topBottom | ![](Assets/sliding_top_to_bottom.gif)  
+| .topBottom | ![](Assets/sliding_top_to_bottom.gif)
 | .bottomTop | ![](Assets/sliding_bottom_to_top.gif)
 | .topLeftBottomRight | ![](Assets/sliding_topLeft_to_bottomRight.gif)
 | .bottomRightTopLeft | ![](Assets/sliding_bottomRight_to_topLeft.gif)
@@ -283,27 +405,117 @@ view.showAnimatedGradientSkeleton(usingGradient: gradient, animation: animation)
 Exist another way to create sliding animations, just using this shortcut:
 >>```let animation = GradientDirection.leftToRight.slidingAnimation()```
 
+
+
+### 🏄 Transitions
+
+```SkeletonView``` has build-in transitions to **show** or **hide** the skeletons in a *smoother* way 🤙
+
+To use the transition, simply add the ```transition``` parameter to your ```showSkeleton()``` or ```hideSkeleton()``` function with the transition time, like this:
+
+```swift
+view.showSkeleton(transition: .crossDissolve(0.25))     //Show skeleton cross dissolve transition with 0.25 seconds fade time
+view.hideSkeleton(transition: .crossDissolve(0.25))     //Hide skeleton cross dissolve transition with 0.25 seconds fade time
+
+```
+
+The default value is  `crossDissolve(0.25)`
+
+**Preview**
+
+<table>
+<tr>
+<td width="50%">
+<center>None</center>
+</td>
+<td width="50%">
+<center>Cross dissolve</center>
+</td>
+</tr>
+<tr>
+<td width="50%">
+<img src="Assets/skeleton_transition_nofade.gif"></img>
+</td>
+<td width="50%">
+<img src="Assets/skeleton_transition_fade.gif"></img>
+</td>
+</tr>
+</table>
+
+
 ### 👨‍👧‍👦 Hierarchy
 
 Since ```SkeletonView``` is recursive, and we want skeleton to be very efficient, we want to stop recursion as soon as possible. For this reason, you must set the container view as `Skeletonable`, because Skeleton will stop looking for `skeletonable` subviews as soon as a view is not Skeletonable, breaking then the recursion.
 
 Because an image is worth a thousand words:
 
+In this example we have a `UIViewController` with a `ContainerView` and a `UITableView`. When the view is ready, we show the skeleton using this method:
+```
+view.showSkeleton()
+```
+
 > ```ìsSkeletonable```= ☠️
 
-| Configuration | Result
-|------- | -------
-|![](Assets/no_skeletonable.png) | ![](Assets/no_skeletonables_result.png)
-|![](Assets/container_no_skeletonable.png) | ![](Assets/no_skeletonables_result.png)
-|![](Assets/container_skeletonable.png) | ![](Assets/container_skeletonable_result.png)
-|![](Assets/all_skeletonables.png) | ![](Assets/all_skeletonables_result.png)
+| Configuration | Result|
+|:-------:|:-------:|
+|<img src="Assets/no_skeletonable.jpg" width="350"/> | <img src="Assets/no_skeletonables_result.png" width="350"/>|
+|<img src="Assets/container_no_skeletonable.jpg" width="350"/> | <img src="Assets/no_skeletonables_result.png" width="350"/>|
+|<img src="Assets/container_skeletonable.jpg" width="350"/> | <img src="Assets/container_skeletonable_result.png" width="350"/>|
+|<img src="Assets/all_skeletonables.jpg" width="350"/>| <img src="Assets/all_skeletonables_result.png" width="350"/>|
+|<img src="Assets/tableview_no_skeletonable.jpg" width="350"/> | <img src="Assets/tableview_no_skeletonable_result.png" height="350"/>|
+|<img src="Assets/tableview_skeletonable.jpg" width="350"/> | <img src="Assets/tableview_skeletonable_result.png" height="350"/>|
+
+
+### 🔬 Debug
+
+**NEW** In order to facilitate the debug tasks when something is not working fine. `SkeletonView` has some new tools.
+
+First, `UIView` has available a new property with his skeleton info:
+```swift
+var skeletonDescription: String
+
+```
+The skeleton representation looks like this:
+
+![](Assets/debug_description.png)
+
+Besides, you can activate the new **debug mode**. You just add the environment variable `SKELETON_DEBUG` and activate it.
+
+![](Assets/debug_mode.png)
+
+Then, when the skeleton appears, you can see the view hierarchy in the Xcode console.
+
+<details>
+<summary>Open to see an output example </summary>
+<img src="Assets/hierarchy_output.png" />
+</details>
 
 
 
 ### 📚 Documentation
 Coming soon...😅
 
-## ❤️ Contributed
+### 📋 Supported OS & SDK Versions
+
+* iOS 9.0+
+* tvOS 9.0+
+* Swift 5
+
+## 📬 Next steps
+
+* [x] Set the filling percent of the last line in multiline elements
+* [x] Add more gradient animations
+* [x] Supported resizable cells
+* [x] CollectionView compatible
+* [x] tvOS compatible
+* [x] Add recovery state
+* [x] Custom default appearance
+* [x] Debug mode
+* [x] Add animations when it shows/hides the skeletons
+* [ ] Custom collections compatible
+* [ ] MacOS and WatchOS compatible
+
+## ❤️ Contributing
 This is an open source project, so feel free to contribute. How?
 - Open an [issue](https://github.com/Juanpe/SkeletonView/issues/new).
 - Send feedback via [email](mailto://juanpecatalan.com).
@@ -313,12 +525,32 @@ See [all contributors](https://github.com/Juanpe/SkeletonView/graphs/contributor
 
 ###### Project generated with [SwiftPlate](https://github.com/JohnSundell/SwiftPlate)
 
+## 📢 Mentions
+
+- [iOS Dev Weekly #327](https://iosdevweekly.com/issues/327#start)
+- [Hacking with Swift Articles](https://www.hackingwithswift.com/articles/40/skeletonview-makes-loading-content-beautiful)
+- [Top 10 Swift Articles November](https://medium.mybridge.co/swift-top-10-articles-for-the-past-month-v-nov-2017-dfed7861cd65)
+- [30 Amazing iOS Swift Libraries (v2018)](https://medium.mybridge.co/30-amazing-ios-swift-libraries-for-the-past-year-v-2018-7cf15027eee9)
+- [AppCoda Weekly #44](http://digest.appcoda.com/issues/appcoda-weekly-issue-44-81899)
+- [iOS Cookies Newsletter #103](https://us11.campaign-archive.com/?u=cd1f3ed33c6527331d82107ba&id=48131a516d)
+- [Swift Developments Newsletter #113](https://andybargh.com/swiftdevelopments-113/)
+- [iOS Goodies #204](http://ios-goodies.com/post/167557280951/week-204)
+- [Swift Weekly #96](http://digest.swiftweekly.com/issues/swift-weekly-issue-96-81759)
+- [CocoaControls](https://www.cocoacontrols.com/controls/skeletonview)
+- [Awesome iOS Newsletter #74](https://ios.libhunt.com/newsletter/74)
+- [Swift News #36](https://www.youtube.com/watch?v=mAGpsQiy6so)
+- [Best iOS articles, new tools & more](https://medium.com/flawless-app-stories/best-ios-articles-new-tools-more-fcbe673e10d)
+
+
+
 ## 👨🏻‍💻 Author
 [1.1]: http://i.imgur.com/tXSoThF.png
 [1]: http://www.twitter.com/JuanpeCatalan
 
 * Juanpe Catalán [![alt text][1.1]][1]
 
+<a class="bmc-button" target="_blank" href="https://www.buymeacoffee.com/CDou4xtIK"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy me a coffee" style="height: 41px !important;width: 174px !important;box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;-webkit-box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;"><span style="margin-left:5px"></span></a>
+
 ## 👮🏻 License
 
 ```

README_fr.md

@@ -0,0 +1,562 @@
+![](Assets/header2.jpg)
+
+<p align="center">
+    <a href="https://github.com/Juanpe/SkeletonView/workflows/build">
+      <img src="https://github.com/Juanpe/SkeletonView/workflows/build/badge.svg">
+    </a>
+    <a href="https://codebeat.co/projects/github-com-juanpe-skeletonview-master"><img alt="codebeat badge" src="https://codebeat.co/badges/f854fdfd-31e5-4689-ba04-075d83653e60" /></a>
+    <img src="https://img.shields.io/badge/Swift-5-orange.svg" />
+    <img src="http://img.shields.io/badge/dependency%20manager-swiftpm%2Bcocoapods%2Bcarthage-green" />
+    <img src="https://img.shields.io/badge/platforms-ios%2Btvos-green" />
+    <a href="https://badge.bow-swift.io/recipe?name=SkeletonView&description=An%20elegant%20way%20to%20show%20users%20that%20something%20is%20happening%20and%20also%20prepare%20them%20to%20which%20contents%20he%20is%20waiting&url=https://github.com/juanpe/skeletonview&owner=Juanpe&avatar=https://avatars0.githubusercontent.com/u/1409041?v=4&tag=1.8.7"><img src="https://raw.githubusercontent.com/bow-swift/bow-art/master/badges/nef-playgrounds-badge.svg" alt="SkeletonView Playground" style="height:20px"></a>   
+    <br/>
+    <a href="https://twitter.com/JuanpeCatalan">
+        <img src="https://img.shields.io/badge/contact-@JuanpeCatalan-blue.svg?style=flat" alt="Twitter: @JuanpeCatalan" />
+    </a>
+    <a href="https://gitter.im/SkeletonView/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge">
+        <img src="https://badges.gitter.im/SkeletonView/community.svg?style=flat" />
+    </a>
+    <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=MJ4Y2D9DEX6FL&lc=ES&item_name=SkeletonView&currency_code=EUR&bn=PP%2dDonationsBF%3abtn_donate_SM%2egif%3aNonHosted">
+        <img src="https://img.shields.io/badge/Donate-PayPal-green.svg" alt="PayPal" />
+    <a href="https://twitter.com/intent/tweet?text=Wow%20This%20library%20is%20awesome:&url=https%3A%2F%2Fgithub.com%2FJuanpe%2FSkeletonView">
+      <img src="https://img.shields.io/twitter/url/https/github.com/Juanpe/SkeletonView.svg?style=social" alt="Licence" />
+    </a>
+</p>
+
+
+🌎 Traductions : </br>
+[Original](https://github.com/Juanpe/SkeletonView) </br>
+[🇨🇳](https://github.com/Juanpe/SkeletonView/blob/master/README_zh.md)  [@WhatsXie](https://twitter.com/WhatsXie) </br>
+[🇧🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_pt-br.md)  [@brunomunizaf](https://twitter.com/brunomuniz_af) </br>
+[🇰🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_ko.md)  [@techinpark](https://twitter.com/techinpark) </br>
+[🇫🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_fr.md)  [@OmarJalil](https://github.com/OmarJalil)
+
+Aujourd'hui, presque toutes les applications ont des processus asynchrones, tels que les requêtes Api, les processus de longue durée, etc. Et pendant que les processus fonctionnent, les développeurs affichent généralement une vue de chargement pour montrer aux utilisateurs que quelque chose se passe.
+
+"SkeletonView" a été créé pour répondre à ce besoin, une manière élégante de montrer aux utilisateurs que quelque chose se passe et aussi de les préparer aux contenus qu'ils attendent.
+
+Profitez-en! 🙂
+
+* [Caractéristiques](#-caractéristiques)
+* [Guides](#-guides)
+* [Installation](#-installation)
+  * [Cocoapods](#utilisation-de-cocoapods)
+  * [Carthage](#utilisation-de-carthage)
+  * [SPM](#utilisation-du-gestionnaire-de-paquets-Swift)
+* [Comment utiliser](#-mode-d'emploi)
+  * [Collections](#-collections)
+  * [Texte Multiligne](#-texte-multiligne)
+  * [Couleurs personnalisées](#-couleurs-personnalisées)
+  * [Présentation](#-présentation)
+  * [Animations personnalisées](#-animations-personnalisées)
+  * [Transitions](#-transitions)
+  * [Hiérarchie](#-hiérarchie)
+  * [Débugger](#-débugger)
+* [Documentation](#-documentation)
+* [Versions OS & SDK supportées](#-versions-os-et-sdk-supportées)
+* [Prochaines étapes](#-prochaines-étapes)
+* [Contribuer](#-contribuer)
+* [Mentions](#-mentions)
+* [Auteur](#-auteur)
+* [Licence](#-licence)
+
+## 🌟 Caractéristiques
+
+- [x] Facile à utiliser
+- [x] Tous les UIViews sont squelettisables
+- [x] Entièrement personnalisable
+- [x] Universel (iPhone et iPad)
+- [x] Interface Builder friendly
+- [x] Syntaxe Swift simple
+- [x] Base de code légère et lisible
+
+## 🎬 Guides
+
+ [<img src="Assets/thumb_getting_started.png">](https://youtu.be/75kgOhWsPNA)
+
+## 📲 Installation
+
+#### Utilisation de [CocoaPods](https://cocoapods.org)
+
+Editez votre "podfile" et spécifiez la dépendance:
+
+```ruby
+pod "SkeletonView"
+```
+
+#### Utilisation de [Carthage](https://github.com/carthage)
+
+Modifiez votre "Cartfile" et spécifiez la dépendance:
+
+```bash
+github "Juanpe/SkeletonView"
+```
+
+#### Utilisation du [gestionnaire de paquets Swift](https://github.com/apple/swift-package-manager)
+
+Une fois que vous avez configuré votre paquet Swift, ajouter `SkeletonView` comme dépendance est aussi facile que de l'ajouter à la valeur des `dépendances` de votre `Package.swift`.
+
+```swift
+  dependencies: [
+    .package(url: "https://github.com/Juanpe/SkeletonView.git", from: "1.7.0")
+  ]
+```
+
+## 🐒 Mode d'emploi
+
+Seulement **3** étapes nécessaires pour utiliser `SkeletonView` :
+
+**1.** Importer SkeletonView au bon endroit.
+```swift
+import SkeletonView
+```
+
+**2.** Maintenant, définissez les vues qui seront `squelettisables`. Vous y arrivez de deux façons :
+
+**En utilisant du code:**
+```swift
+avatarImageView.isSkeletonable = true
+```
+**Utilisation des IB/Storyboards:**
+
+![](Assets/storyboard.png)
+
+**Une fois que vous avez défini les vues, vous pouvez montrer le **squelette**. Pour le faire, vous avez quatre choix :
+
+```swift
+(1) view.showSkeleton() // Solide
+(2) view.showGradientSkeleton() // Gradient
+(3) view.showAnimatedSkeleton() // Solide animé
+(4) view.showAnimatedGradientSkeleton() // Gradient animé
+```
+
+**Preview**
+
+<table>
+<tr>
+<td width="25%">
+<center>Solide</center>
+</td>
+<td width="25%">
+<center>Gradient</center>
+</td>
+<td width="25%">
+<center>Animé Solide</center>
+</td>
+<td width="25%">
+<center>Animé Gradient</center>
+</td>
+</tr>
+<tr>
+<td width="25%">
+<img src="Assets/solid.png"></img>
+</td>
+<td width="25%">
+<img src="Assets/gradient.png"></img>
+</td>
+<td width="25%">
+<img src="Assets/solid_animated.gif"></img>
+</td>
+<td width="25%">
+<img src="Assets/gradient_animated.gif"></img>
+</td>
+</tr>
+</table>
+
+> **IMPORTANT!**
+>>```SkeletonView``` est récursif, donc si vous voulez montrer le squelette dans toutes les vues squelettables, il vous suffit d'appeler la méthode `show` dans la vue principale du conteneur. Par exemple, avec UIViewControllers
+
+### Extra
+
+#### Mise en page des vues squelettes
+
+Il arrive que le squelette ne corresponde pas à votre mise en page parce que les limites de la vue parent ont changé. ~Par exemple, la rotation de l'appareil.~
+
+Vous pouvez relayer les vues du squelette de cette manière :
+
+```swift
+override func viewDidLayoutSubviews() {
+    view.layoutSkeletonIfNeeded()
+}
+```
+
+⚠️⚠️ Vous ne devriez pas appeler cette méthode. À partir de la *version 1.8.1*, vous n'avez pas besoin d'appeler cette méthode, la bibliothèque le fait automatiquement. Vous pouvez donc utiliser cette méthode *seulement* dans les cas où vous devez mettre à jour manuellement la présentation du squelette.
+
+#### Mise à jour de la configuration du squelette
+
+Vous pouvez modifier la configuration du squelette à tout moment comme sa couleur, son animation, etc :
+
+```swift
+(1) view.updateSkeleton() // Solide
+(2) view.updateGradientSkeleton() // Gradient
+(3) view.updateAnimatedSkeleton() // Solid animated
+(4) view.updateAnimatedGradientSkeleton() // Gradient animé
+```
+
+### 🌿 Collections
+
+ Maintenant, `SkeletonView` est compatible avec `UITableView` et `UICollectionView`.
+
+#### UITableView
+
+Si vous voulez montrer le squelette dans un `UITableView`, vous devez vous conformer au protocole `SkeletonTableViewDataSource`.
+
+``` swift
+public protocol SkeletonTableViewDataSource: UITableViewDataSource {
+    func numSections(in collectionSkeletonView: UITableView) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForHeaderInSection section: Int) -> ReusableHeaderFooterIdentifier?
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForFooterInSection section: Int) -> ReusableHeaderFooterIdentifier?
+}
+```
+
+Comme vous pouvez le voir, ce protocole hérite de `UITableViewDataSource`, vous pouvez donc remplacer ce protocole par le protocole squelette.
+
+Ce protocole a une implémentation par défaut:
+
+``` swift
+func numSections(in collectionSkeletonView: UITableView) -> Int
+// Par défaut: 1
+```
+
+``` swift
+func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+// Par défaut:
+// Il calcule le nombre de cellules nécessaires pour remplir l'ensemble du tableau
+```
+
+``` swift
+func collectionSkeletonView(_ skeletonView: UITableView, identifierForHeaderInSection section: Int) -> ReusableHeaderFooterIdentifier?
+// Par défaut: nil
+```
+
+``` swift
+func collectionSkeletonView(_ skeletonView: UITableView, identifierForFooterInSection section: Int) -> ReusableHeaderFooterIdentifier?
+// Par défaut: nil
+```
+
+Il n'y a qu'une seule méthode à mettre en œuvre pour faire connaître au Squelette l'identifiant de la cellule. Cette méthode n'a pas d'implémentation par défaut :
+``` swift
+ func collectionSkeletonView(_ skeletonView : UITableView, cellIdentifierForRowAt indexPath : IndexPath) -> ReusableCellIdentifier
+```
+
+**Exemple**
+``` swift
+ func collectionSkeletonView(_ skeletonView : UITableView, cellIdentifierForRowAt indexPath : IndexPath) -> ReusableCellIdentifier {
+    return "CellIdentifier".
+}
+ ```
+
+> **IMPORTANT!**
+> Si vous utilisez des cellules redimensionnables (`tableView.rowHeight = UITableViewAutomaticDimension` ), il est obligatoire de définir la `estimatedRowHeight`.
+
+👩🏼 **Comment préciser quels éléments sont squelettisables ?
+
+Voici une illustration qui montre comment vous devez spécifier quels éléments sont squelettisables lorsque vous utilisez une `UITableView` :
+
+![](Assets/tableview_scheme.png)
+
+Comme vous pouvez le voir, nous devons faire `skeletonable` la tableview, la cellule et les éléments de l'interface visuelle, mais nous n'avons pas besoin de faire `skeletonable` le `contentView`.
+
+#### UICollectionView
+
+Pour ```UICollectionView```, vous devez conformer le protocole `SkeletonCollectionViewDataSource`.
+
+``` swift
+public protocol SkeletonCollectionViewDataSource: UICollectionViewDataSource {
+    func numSections(in collectionSkeletonView: UICollectionView) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, numberOfItemsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, cellIdentifierForItemAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+```
+
+Le reste du processus ressemble à une `UITableView`.
+
+### 📰 Texte multiligne
+
+![](Assets/multilines2.png)
+
+Lorsqu'on utilise des éléments avec du texte, `SkeletonView` dessine des lignes pour simuler le texte.
+En outre, vous pouvez décider combien de lignes vous voulez. Si `numberOfLines` est réglé à zéro, il calculera le combien de lignes sont nécessaires pour remplir tout le squelette et il sera dessiné. Au contraire, si vous le réglez sur un, deux ou tout autre nombre supérieur à zéro, il ne dessinera que ce nombre de lignes.
+
+##### 🎛 Personnaliser
+
+Vous pouvez définir certaines propriétés pour les éléments multilignes.
+
+| Propriété | Valeurs | Par défaut | Aperçu
+| ------- | ------- |------- | -------
+| **Pourcentage de remplissage** de la dernière ligne. | `0...100` | `70%` | ![](Assets/multiline_lastline.png)
+| **Corner radius** des lignes. (**NEW**) | `0...10` | `0` | ![](Assets/multiline_corner.png)
+
+
+Pour modifier le pourcentage ou le rayon **à l'aide du code**, définissez les propriétés :
+``` swift
+descriptionTextView.lastLineFillPercent = 50
+descriptionTextView.linesCornerRadius = 5
+```
+
+Ou, si vous préférez, utilisez l'**IB/Storyboard** :
+
+![](Assets/multiline_customize.png)
+
+### 🎨 Couleurs personnalisées
+
+Vous pouvez décider la couleur du squelette. Il vous suffit de passer comme paramètre la couleur ou le gradient que vous souhaitez.
+
+**Utiliser des couleurs solides**
+``` swift
+view.showSkeleton(usingColor : UIColor.gray) // Solide
+// ou
+view.showSkeleton(usingColor : UIColor(red : 25.0, green : 30.0, blue : 255.0, alpha : 1.0))
+```
+**Utilisation des gradients**
+``` swift
+let gradient = SkeletonGradient(baseColor : UIColor.midnightBlue)
+view.showGradientSkeleton(usingGradient : gradient) // Gradient
+```
+
+En outre, `SkeletonView` dispose de 20 couleurs unies 🤙🏼
+
+`UIColor.turquoise, UIColor.greenSea, UIColor.sunFlower, UIColor.flatOrange ...`
+
+![](Assets/flatcolors.png)
+###### Image tirée du site web [https://flatuicolors.com](https://flatuicolors.com)
+
+### 🦋 Présentation
+
+**NOUVEAU** Les squelettes ont une apparence par défaut. Ainsi, lorsque vous ne spécifiez pas la couleur, le gradient ou les propriétés multilignes, `SkeletonView` utilise les valeurs par défaut.
+
+Valeurs par défaut :
+- **tintColor** : UIColor
+    - *défaut : `.skeletonDefault` (comme `.clouds` mais adaptable au thème sombre)*
+- **gradient** : SkeletonGradient
+  - *défaut : `SkeletonGradient(baseColor : .skeletonDefault)`*
+- **multilineHeight** : CGFloat
+  - *défaut : 15*
+- **multilineSpacing** : CGFloat
+  - *défaut : 10*
+- **multilineLastLineFillPercent** : Int
+  - *défaut : 70*
+- **multilineCornerRadius** : Int
+  - *défaut : 0*
+- **skeletonCornerRadius** : CGFloat (IBInspectable) (Faites votre vue squelette avec des coins)
+  - *défaut : 0*
+
+Pour obtenir ces valeurs par défaut, vous pouvez utiliser `SkeletonAppearance.default`. En utilisant cette propriété, vous pouvez également définir les valeurs :
+``` swift
+SkeletonAppearance.default.multilineHeight = 20
+SkeletonAppearance.default.tintColor = .green
+```
+
+### 🤓 Animations personnalisées
+
+`SkeletonView` a deux animations intégrées, *pulse* pour les squelettes solides et *sliding* pour les gradients.
+
+De plus, si vous voulez faire votre propre animation de squelette, c'est très facile.
+
+Skeleton fournit la fonction `showAnimatedSkeleton` qui possède une fermeture `SkeletonLayerAnimation` où vous pouvez définir votre animation personnalisée.
+
+``` swift
+public typealias SkeletonLayerAnimation = (CALayer) -> CAAnimation
+```
+
+Vous pouvez appeler la fonction comme ceci :
+
+```swift
+view.showAnimatedSkeleton { (layer) -> CAAnimation in
+  let animation = CAAnimation()
+  // Personnalisez ici votre animation
+
+  return animation
+}
+```
+
+`SkeletonAnimationBuilder` est disponible. C'est un constructeur pour faire `SkeletonLayerAnimation`.
+
+Aujourd'hui, vous pouvez créer des **animations glissantes** pour les gradients, en décidant de la **direction** et en fixant la **durée** de l'animation (par défaut = 1,5s).
+
+```swift
+// func makeSlidingAnimation(withDirection direction : GradientDirection, duration : CFTimeInterval = 1.5) -> SkeletonLayerAnimation
+
+let animation = SkeletonAnimationBuilder().makeSlidingAnimation(withDirection : .leftToRight)
+view.showAnimatedGradientSkeleton(usingGradient : gradient, animation : animation)
+
+```
+
+`GradientDirection` est une `enum`, avec ces cas :
+
+| Direction | Aperçu
+|------- | -------
+| .leftRight | ![](Assets/sliding_left_to_right.gif)
+| .rightLeft | ![](Assets/sliding_right_to_left.gif)
+| .topBottom | ![](Assets/sliding_top_to_bottom.gif)
+| .bottomTop | ![](Assets/sliding_bottom_to_top.gif)
+| .topLeftBottomRight | ![](Assets/sliding_topLeft_to_bottomRight.gif)
+| .bottomRightTopLeft | ![](Assets/sliding_bottomRight_to_topLeft.gif)
+
+> **😉 TRICK!**
+Il existe une autre façon de créer des animations de glissement, en utilisant simplement ce raccourci :
+>>```let animation = GradientDirection.leftToRight.slidingAnimation()```
+
+### 🏄 Transitions
+
+`SkeletonView` a des transitions intégrées pour **montrer** ou **cacher** les squelettes d'une manière *lisse* 🤙
+
+Pour utiliser la transition, il suffit d'ajouter le paramètre "transition" à votre fonction `showSkeleton()` ou `hideSkeleton()` avec le temps de transition, comme ceci :
+
+```swift
+view.showSkeleton(transition : .crossDissolve(0.25))     //Montrer la transition de dissolution croisée du squelette avec un temps de fondu de 0,25 seconde
+view.hideSkeleton(transition : .crossDissolve(0.25))     //Cachez la transition de dissolution croisée du squelette avec un temps de fondu de 0,25 seconde
+```
+
+La valeur par défaut est `crossDissolve(0.25)`.
+
+**Preview**
+
+<table>
+<tr>
+<td width="50%">
+<center>None</center>
+</td>
+<td width="50%">
+<center>Cross dissolve</center>
+</td>
+</tr>
+<tr>
+<td width="50%">
+<img src="Assets/skeleton_transition_nofade.gif"></img>
+</td>
+<td width="50%">
+<img src="Assets/skeleton_transition_fade.gif"></img>
+</td>
+</tr>
+</table>
+
+### 👨👧👦 Hiérarchie
+
+Puisque `SkeletonView` est récursif, et que nous voulons que le squelette soit très efficace, nous voulons arrêter la récursivité dès que possible. Pour cette raison, vous devez définir la vue du conteneur comme `Skeletonable`, parce que Skeleton arrêtera de chercher des sous-vues `squelettisables` dès qu'une vue n'est pas `Skeletonable`, cassant alors la récursivité.
+
+Parce qu'une image vaut mille mots :
+
+Dans cet exemple, nous avons un `UIViewController` avec une `ContainerView` et une `UITableView`. Lorsque la vue est prête, nous montrons le squelette en utilisant cette méthode :
+```
+view.showSkeleton()
+```
+
+> ```isSkeletonable```= ☠️
+
+| Configuration | Résultat|
+|:-------:|:-------:|
+|<img src="Assets/no_skeletonable.jpg" width="350"/> | <img src="Assets/no_skeletonables_result.png" width="350"/>|
+|<img src="Assets/container_no_skeletonable.jpg" width="350"/> | <img src="Assets/no_skeletonables_result.png" width="350"/>|
+|<img src="Assets/container_skeletonable.jpg" width="350"/> | <img src="Assets/container_skeletonable_result.png" width="350"/>|
+|<img src="Assets/all_skeletonables.jpg" width="350"/>| <img src="Assets/all_skeletonables_result.png" width="350"/>|
+|<img src="Assets/tableview_no_skeletonable.jpg" width="350"/> | <img src="Assets/tableview_no_skeletonable_result.png" height="350"/>|
+|<img src="Assets/tableview_skeletonable.jpg" width="350"/> | <img src="Assets/tableview_skeletonable_result.png" height="350"/>|
+
+### 🔬 Débugger
+
+**NOUVEAU** Afin de faciliter les tâches de debuggage lorsque quelque chose ne fonctionne pas bien. `SkeletonView` a de nouveaux outils.
+
+Tout d'abord, `UIView` a une nouvelle propriété disponible avec son squelette d'information :
+```swift
+var skeletonDescription : String
+```
+La représentation du squelette ressemble à ceci :
+
+![](Assets/debug_description.png)
+
+En outre, vous pouvez activer le nouveau mode **debug**. Il suffit d'ajouter la variable d'environnement `SKELETON_DEBUG` et de l'activer.
+
+![](Assets/debug_mode.png)
+
+Ensuite, lorsque le squelette apparaît, vous pouvez voir la hiérarchie des vues dans la console Xcode.
+
+<details>
+<summary>Ouvrez pour voir un exemple de sortie</summary>
+<img src="Assets/hierarchy_output.png" />
+</details>
+
+### 📚 Documentation
+Bientôt disponible...😅
+
+### 📋 Versions OS et SDK supportées
+
+* iOS 9.0+
+* tvOS 9.0+
+* Swift 5
+
+## 📬 Prochaines étapes
+
+* [x] Fixer le pourcentage de remplissage de la dernière ligne dans les éléments multilignes
+* [x] Ajout d'autres animations en dégradé
+* [x] Cellules redimensionnables prises en charge
+* [x] Compatible avec CollectionView
+* [x] Compatible avec tvOS
+* [x] Ajouter l'état de recouvrement
+* [x] Apparence personnalisée par défaut
+* [x] Mode de debuggage
+* [x] Ajouter des animations lorsqu'il montre/cache les squelettes
+* [ ] Compatible avec les collections personnalisées
+* [ ] Compatible avec MacOS et WatchOS
+
+## ❤️ Contribuer
+Il s'agit d'un projet open source, alors n'hésitez pas à y contribuer. Comment ?
+- Ouvrez un [numéro](https://github.com/Juanpe/SkeletonView/issues/new).
+- Envoyez vos commentaires via [email](mailto://juanpecatalan.com).
+- Proposez vos propres correctifs, suggestions et ouvrez une `pull request` avec les changements.
+
+Voir [tous les contributeurs](https://github.com/Juanpe/SkeletonView/graphs/contributors)
+
+###### Projet généré avec [SwiftPlate](https://github.com/JohnSundell/SwiftPlate)
+
+## 📢 Mentions
+
+- [iOS Dev Weekly #327](https://iosdevweekly.com/issues/327#start)
+- [Hacking with Swift Articles] (https://www.hackingwithswift.com/articles/40/skeletonview-makes-loading-content-beautiful)
+- [Top 10 articles Swift de novembre] (https://medium.mybridge.co/swift-top-10-articles-for-the-past-month-v-nov-2017-dfed7861cd65)
+- [30 bibliothèques incroyables pour iOS Swift (v2018)](https://medium.mybridge.co/30-amazing-ios-swift-libraries-for-the-past-year-v-2018-7cf15027eee9)
+- [AppCoda Weekly #44](http://digest.appcoda.com/issues/appcoda-weekly-issue-44-81899)
+- [iOS Cookies Newsletter #103](https://us11.campaign-archive.com/?u=cd1f3ed33c6527331d82107ba&id=48131a516d)
+- [Bulletin d'information sur les développements Swift #113](https://andybargh.com/swiftdevelopments-113/)
+- [iOS Goodies #204](http://ios-goodies.com/post/167557280951/week-204)
+- [Swift Weekly #96](http://digest.swiftweekly.com/issues/swift-weekly-issue-96-81759)
+- [CocoaControls](https://www.cocoacontrols.com/controls/skeletonview)
+- [Bulletin d'information Génial iOS #74](https://ios.libhunt.com/newsletter/74)
+- [Swift News #36](https://www.youtube.com/watch?v=mAGpsQiy6so)
+- [Meilleurs articles sur iOS, nouveaux outils et plus](https://medium.com/flawless-app-stories/best-ios-articles-new-tools-more-fcbe673e10d)
+
+## 👨🏻‍💻 Auteur
+[1.1]: http://i.imgur.com/tXSoThF.png
+[1]: http://www.twitter.com/JuanpeCatalan
+
+* Juanpe Catalán [![alt text][1.1]][1]
+
+<a class="bmc-button" target="_blank" href="https://www.buymeacoffee.com/CDou4xtIK"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy me a coffee" style="height: 41px !important;width: 174px !important;box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;-webkit-box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;"><span style="margin-left:5px"></span></a>
+
+## 👮🏻 Licence
+
+```
+MIT License
+
+Copyright (c) 2017 Juanpe Catalán
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+```

README_ko.md

@@ -0,0 +1,498 @@
+![](Assets/header2.jpg)
+
+<p align="center">
+    <a href="https://github.com/Juanpe/SkeletonView/workflows/build">
+      <img src="https://github.com/Juanpe/SkeletonView/workflows/build/badge.svg">
+    </a>
+    <a href="https://codebeat.co/projects/github-com-juanpe-skeletonview-master"><img alt="codebeat badge" src="https://codebeat.co/badges/f854fdfd-31e5-4689-ba04-075d83653e60" /></a>
+    <img src="https://img.shields.io/badge/Swift-5-orange.svg" />
+    <img src="http://img.shields.io/badge/dependency%20manager-swiftpm%2Bcocoapods%2Bcarthage-green" />
+    <img src="https://img.shields.io/badge/platforms-ios%2Btvos-green" />
+    <a href="https://badge.bow-swift.io/recipe?name=SkeletonView&description=An%20elegant%20way%20to%20show%20users%20that%20something%20is%20happening%20and%20also%20prepare%20them%20to%20which%20contents%20he%20is%20waiting&url=https://github.com/juanpe/skeletonview&owner=Juanpe&avatar=https://avatars0.githubusercontent.com/u/1409041?v=4&tag=1.8.7"><img src="https://raw.githubusercontent.com/bow-swift/bow-art/master/badges/nef-playgrounds-badge.svg" alt="SkeletonView Playground" style="height:20px"></a>   
+    <br/>
+    <a href="https://twitter.com/JuanpeCatalan">
+        <img src="https://img.shields.io/badge/contact-@JuanpeCatalan-blue.svg?style=flat" alt="Twitter: @JuanpeCatalan" />
+    </a>
+    <a href="https://gitter.im/SkeletonView/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge">
+        <img src="https://badges.gitter.im/SkeletonView/community.svg?style=flat" />
+    </a>
+    <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=MJ4Y2D9DEX6FL&lc=ES&item_name=SkeletonView&currency_code=EUR&bn=PP%2dDonationsBF%3abtn_donate_SM%2egif%3aNonHosted">
+        <img src="https://img.shields.io/badge/Donate-PayPal-green.svg" alt="PayPal" />
+    <a href="https://twitter.com/intent/tweet?text=Wow%20This%20library%20is%20awesome:&url=https%3A%2F%2Fgithub.com%2FJuanpe%2FSkeletonView">
+      <img src="https://img.shields.io/twitter/url/https/github.com/Juanpe/SkeletonView.svg?style=social" alt="License" />
+    </a>
+</p>
+
+🌎  번역에 도움을 주신분들: </br>
+[Original](https://github.com/Juanpe/SkeletonView) </br>
+[🇨🇳](https://github.com/Juanpe/SkeletonView/blob/master/README_zh.md)  [@WhatsXie](https://twitter.com/WhatsXie) </br>
+[🇧🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_pt-br.md)  [@brunomunizaf](https://twitter.com/brunomuniz_af) </br>
+[🇰🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_ko.md)  [@techinpark](https://twitter.com/techinpark) </br>
+[🇫🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_fr.md)  [@OmarJalil](https://github.com/OmarJalil)
+
+오늘날 거의 대부분의 앱들은 비동기 방식의 API 호출을 사용하는 프로세스를 가지고 있습니다.
+프로세스가 작동하는동안 개발자들은 작업이 실행되고 있다는것을 사용자들에게 보여주기 위해서 로딩 뷰를 배치합니다.
+
+```SkeletonView```는 이러한 필요에 의해 고안되었고, 사용자들에게 무엇인가 로딩이 되고 있다는것을 보여주면서 기다리는 콘텐츠에 대해서도 미리 준비할 수 있게 해주는 우아하게 표현할수 있는 방법입니다
+
+맘껏 누리세요 🙂
+
+* [기능](#-features)
+* [가이드](#-guides)
+* [설치방법](#-installation)
+  * [Cocoapods](#using-cocoapods)
+  * [Carthage](#using-carthage)
+  * [SPM](#using-swift-package-manager)
+* [어떻게 사용하나요?](#-how-to-use)
+  * [Collections](#-collections)
+  * [Multiline text](#-multiline-text)
+  * [Custom colors](#-custom-colors)
+  * [Appearance](#-appearance)
+  * [Custom animations](#-custom-animations)
+  * [Hierarchy](#-hierarchy)
+  * [Debug](#-debug)
+* [문서화](#-documentation)
+* [지원되는 OS와 SDK 버전](#-supported-os--sdk-versions)
+* [Next steps](#-next-steps)
+* [Contributing](#-contributing)
+* [Mentions](#-mentions)
+* [개발자](#-author)
+* [라이센스](#-license)
+
+
+## 🌟 기능
+
+- [x] 사용이 쉽습니다
+- [x] 모든 `UIView`에서 사용가능합니다
+- [x] 전체 커스터마이징이 가능합니다
+- [x] 공통으로 이용가능합니다 (iPhone & iPad)
+- [x] `Interface Builder` 에서 사용 가능합니다.
+- [x] 간단한 스위프트 문법
+- [x] 가볍고 가독성 좋은 코드
+
+## 🎬 사용가이드
+
+ [<img src="Assets/thumb_getting_started.png">](https://youtu.be/75kgOhWsPNA)
+
+## 📲 설치 방법
+
+#### [CocoaPods](https://cocoapods.org) 로 사용하기
+
+당신의 프로젝트 `Podfile` 파일에 아래와 같이 입력합니다:
+
+```ruby
+pod "SkeletonView"
+```
+
+#### [Carthage](https://github.com/carthage)로 사용하기
+
+당신의 프로젝트 `Cartfile` 파일에 아래와 같이 입력합니다:
+
+```bash
+github "Juanpe/SkeletonView"
+```
+
+#### [Swift Package Manager](https://github.com/apple/swift-package-manager)로 사용하기
+
+
+당신의 프로젝트에 Swift package를 설정한다면, `SkeletonView` 를 `Package.swift` 파일에 있는 `dependencies`에 추가하시면 됩니다.
+
+
+```swift
+  dependencies: [
+    .package(url: "https://github.com/Juanpe/SkeletonView.git", from: "1.6")
+  ]
+```
+
+
+
+## 🐒 어떻게 사용하나요?
+
+`SkeletonView` 를 이용하기 위해서는 딱 **3** 단계만 기억하세요:
+
+**1.** 사용하고자 하는 파일에서 `SkeletonView` 를 `Import` 합니다.
+```swift
+import SkeletonView
+```
+
+**2.** 자, 그렇다면 UIView 속성에  `skeletonables` 를 이용하실 수 있습니다. 두가지 옵션이 있습니다
+
+**코드로 사용하는 방법:**
+```swift
+avatarImageView.isSkeletonable = true
+```
+**인터페이스빌더 / 스토리보드를 이용하는 방법:**
+
+![](Assets/storyboard.png)
+
+**3.** 당신이 뷰를 세팅할때, **skeleton** 옵션을 사용 할 수 있습니다. 총 **4** 가지 옵션을 지원합니다:
+
+```swift
+(1) view.showSkeleton()                 // Solid
+(2) view.showGradientSkeleton()         // Gradient
+(3) view.showAnimatedSkeleton()         // Solid animated
+(4) view.showAnimatedGradientSkeleton() // Gradient animated
+```
+
+**미리보기**
+
+<table>
+<tr>
+<td width="25%">
+<center>Solid</center>
+</td>
+<td width="25%">
+<center>Gradient</center>
+</td>
+<td width="25%">
+<center>Solid Animated</center>
+</td>
+<td width="25%">
+<center>Gradient Animated</center>
+</td>
+</tr>
+<tr>
+<td width="25%">
+<img src="Assets/solid.png"></img>
+</td>
+<td width="25%">
+<img src="Assets/gradient.png"></img>
+</td>
+<td width="25%">
+<img src="Assets/solid_animated.gif"></img>
+</td>
+<td width="25%">
+<img src="Assets/gradient_animated.gif"></img>
+</td>
+</tr>
+</table>
+
+> **중요!**
+>>```SkeletonView``` 는 재귀적으로 되어있습니다, 만약 모든 뷰에 대해서 skeleton을 호출하고 싶다면, 메인 컨테이너 뷰에서 show `method`를 호출하여야 합니다. 예를 들자면 UIViewControllers가 있습니다.
+
+
+
+### 🌿 Collections
+
+ 현재, ```SkeletonView``` 는  ```UITableView``` 와 ```UICollectionView```에서 호환됩니다.
+
+#### UITableView
+
+만약 ```UITableView```에서 skeleton을 호출하고 싶다면, ```SkeletonTableViewDataSource``` protocol 을 구현하여야 합니다.
+
+``` swift
+public protocol SkeletonTableViewDataSource: UITableViewDataSource {
+    func numSections(in collectionSkeletonView: UITableView) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+```
+
+해당 프로토클은 보시다시피  ```UITableViewDataSource```를 상속받아 구현하였으므로, skeleton의 protocol과 대체 가능합니다.
+
+프로토콜의 기본 구현은 다음과 같습니다:
+
+``` swift
+func numSections(in collectionSkeletonView: UITableView) -> Int
+// Default: 1
+```
+
+``` swift
+func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+// Default:
+// 전체 테이블 뷰를 채우는데 필요한 셀 수를 계산합니다
+```
+
+해당 메소드는 당신이 구현하여야할 cell identifier을 아는 경우에만 사용합니다, 해당 메소드는 기본으로 구현하지 않아도됩니다 :
+
+ ``` swift
+ func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+ ```
+
+**Example**
+ ``` swift
+ func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier {
+    return "CellIdentifier"
+}
+ ```
+
+> **중요!**
+> 만약 사이즈가 변하는 셀을 사용한다면 (`tableView.rowHeight = UITableViewAutomaticDimension` ),`estimatedRowHeight`를 무조건 정의해주세요.
+
+
+👩🏼‍🏫  **어떻게 특정 요소에 skeleton 을 지정할까요?**
+
+아래의 그림은 `UITableView` 에서 특정한 요소에 skeleton 을 지정하는 방법을 보여주는 이미지 입니다:
+
+![](Assets/tableview_scheme.png)
+
+위의 이미지에서 보이듯, 테이블 뷰와 셀에 들어가는 UI 요소들에는 적용을 해야하지만, `contentView`에 skeleton을 적용할 필요는 없습니다.
+
+####  UICollectionView
+
+ ```UICollectionView``` 에 적용을 하기 위해서는, ```SkeletonCollectionViewDataSource``` protocol 을 구현할 필요가 있습니다.
+
+``` swift
+public protocol SkeletonCollectionViewDataSource: UICollectionViewDataSource {
+    func numSections(in collectionSkeletonView: UICollectionView) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, numberOfItemsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, cellIdentifierForItemAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+```
+
+```UITableView``` 와 사용방법은 같습니다.
+
+### 📰 Multiline text
+
+
+![](Assets/multilines2.png)
+
+텍스트가 들어있는 요소를 사용한다면, ```SkeletonView``` 에서 텍스트의 라인을 그려줍니다.
+그리고, 원하는 라인 수를 설정할 수 있습니다. 만약   ```numberOfLines``` 을 0으로 설정한다면, 자동으로 필요한 라인수를 계산해서 그려줍니다. 대신 값이 설정되어있다면 설정된 수만큼의 라인이 그려집니다.
+
+##### 🎛 Customize
+
+당신은 멀티라인을 위해 몇가지 옵션을 설정할 수 있습니다.
+
+
+| 속성                                              | 값         | 기본값   | 미리보기                               |
+| ----------------------------------------------- | --------- | ----- | ---------------------------------- |
+| 마지막 라인의 **퍼센트** 를 지정 할 수 있습니다.                  | `0...100` | `70%` | ![](Assets/multiline_lastline.png) |
+| 라인의 **Corner radius** 를 지정할 수 있습니다. (**새로운기능**) | `0...10`  | `0`   | ![](Assets/multiline_corner.png)   |
+
+
+
+라인의 radius를 지정하기 위해서는  **코드** 를 이용합니다, 아래 처럼 코드를 작성합니다:
+```swift
+descriptionTextView.lastLineFillPercent = 50
+descriptionTextView.linesCornerRadius = 5
+```
+
+혹은 **IB/Storyboard** 를 이용하실 수 있습니다:
+
+![](Assets/multiline_customize.png)
+
+### 🎨 Custom colors
+
+당신은 skeleton의 색상을 지정 할 수 있습니다. 간단하게 원하는 색상을 파라미터로 넘겨주시면 됩니다.
+
+**단색 이용방법**
+``` swift
+view.showSkeleton(usingColor: UIColor.gray) // Solid
+// or
+view.showSkeleton(usingColor: UIColor(red: 25.0, green: 30.0, blue: 255.0, alpha: 1.0))
+```
+**그라디언트 이용 방법**
+``` swift
+let gradient = SkeletonGradient(baseColor: UIColor.midnightBlue)
+view.showGradientSkeleton(usingGradient: gradient) // Gradient
+```
+
+게다가, ```SkeletonView``` 에서는 20가지의 기본 컬러를 지원합니다 🤙🏼
+
+```UIColor.turquoise, UIColor.greenSea, UIColor.sunFlower, UIColor.flatOrange  ...```
+
+![](Assets/flatcolors.png)
+###### 위 이미지는 [https://flatuicolors.com](https://flatuicolors.com) 사이트에서 발췌했습니다.
+
+### 🦋 Appearance
+
+**새로운 사항** skeleton 은  기본설정 값이 정해져 있습니다. 만약 커스텀 컬러를 사용할 필요가 없다면, `SkeletonView` 에 지정 되어있는 기본설정을 사용하시면 됩니다.
+
+기본 설정값:
+- **tintColor**: UIColor
+    - *기본값: .clouds*
+- **gradient**: SkeletonGradient
+  - *기본값: SkeletonGradient(baseColor: .clouds)*
+- **multilineHeight**: CGFloat
+  - *기본값: 15*
+- **multilineSpacing**: CGFloat
+  - *기본값: 10*
+- **multilineLastLineFillPercent**: Int
+  - *기본값: 70*
+- **multilineCornerRadius**: Int
+  - *기본값: 0*
+
+`SkeletonAppearance.default` 에는 사용 되어지는 기본 값들이 설정되어 있습니다 . 아래의 코드와 같이 사용할 수 있습니다:
+```Swift
+SkeletonAppearance.default.multilineHeight = 20
+SkeletonAppearance.default.tintColor = .green
+```
+
+
+### 🤓 커스텀 애니메이션
+
+```SkeletonView``` 에는 두가지 애니메이션이 내장되어 있습니다, 단색 *바운스* 애니메이션과  그라디언트 *슬라이드* 애니메이션 입니다 .
+
+게다가, 직접 애니메이션을 추가하고 싶다면 정말 간단합니다.
+
+
+Skeleton 에서는 `showAnimatedSkeleton` 함수를  ```SkeletonLayerAnimation```에 정의하여 맞춤형 애니메이션을 정의할 수 있도록 되어 있습니다.
+
+```swift
+public typealias SkeletonLayerAnimation = (CALayer) -> CAAnimation
+```
+
+함수는 이렇게 호출 가능합니다:
+
+```swift
+view.showAnimatedSkeleton { (layer) -> CAAnimation in
+  let animation = CAAnimation()
+  // Customize here your animation
+
+  return animation
+}
+```
+
+```SkeletonAnimationBuilder```의 사용이 가능합니다. ```SkeletonLayerAnimation```을 만들기 위해 사용됩니다.
+
+이제, 그라디언트를 위한 **슬라이딩 애니메이션** 을 만들 수 있습니다, 애니메이션을 위한  **방향** 과  **지속시간** 을 설정 할 수 있습니다.  (기본값 = 1.5초).
+
+```swift
+// func makeSlidingAnimation(withDirection direction: GradientDirection, duration: CFTimeInterval = 1.5) -> SkeletonLayerAnimation
+
+let animation = SkeletonAnimationBuilder().makeSlidingAnimation(withDirection: .leftToRight)
+view.showAnimatedGradientSkeleton(usingGradient: gradient, animation: animation)
+
+```
+
+```GradientDirection``` 는 enum 으로 정의 되어있습니다., 아래의 케이스를 참조하세요:
+
+| 방향                  | 미리보기                                           |
+| ------------------- | ---------------------------------------------- |
+| .leftRight          | ![](Assets/sliding_left_to_right.gif)          |
+| .rightLeft          | ![](Assets/sliding_right_to_left.gif)          |
+| .topBottom          | ![](Assets/sliding_top_to_bottom.gif)          |
+| .bottomTop          | ![](Assets/sliding_bottom_to_top.gif)          |
+| .topLeftBottomRight | ![](Assets/sliding_topLeft_to_bottomRight.gif) |
+| .bottomRightTopLeft | ![](Assets/sliding_bottomRight_to_topLeft.gif) |
+
+> **😉 꿀팁!**
+슬라이딩 애니메이션을 만들기 위한 또다른 방법이 있습니다, 아래의 코드를 참조하세요:
+>>```let animation = GradientDirection.leftToRight.slidingAnimation()```
+
+### 👨‍👧‍👦 계층 구조
+
+```SkeletonView```는 재귀적입니다 , 그리고 우리는 skeleton이 효율적으로 작동하기를 원하기 때문에, 가능한 빨리 재귀작업을 중단하기를 원합니다. 이러한 이유때문에 반드시 컨테이너 뷰를  `Skeletonable` 로 설정해야 합니다,  `skeletonable` 되지 않는 뷰를 만나는 순간 재귀 작업을 중단하기 떄문입니다.
+
+아래의 이미지를 참고하세요 이미지는 한눈에 이해되실겁니다:
+
+> ```ìsSkeletonable```= ☠️
+
+| 설정값                             | 결과                                        |
+| ----------------------------------------- | --------------------------------------------- |
+| ![](Assets/no_skeletonable.png)           | ![](Assets/no_skeletonables_result.png)       |
+| ![](Assets/container_no_skeletonable.png) | ![](Assets/no_skeletonables_result.png)       |
+| ![](Assets/container_skeletonable.png)    | ![](Assets/container_skeletonable_result.png) |
+| ![](Assets/all_skeletonables.png)         | ![](Assets/all_skeletonables_result.png)      |
+
+
+### 🔬 디버그
+
+**새로운소식** 어떤것들이 잘 동작 하지 않을때를 위해 디버그 작업을 용이하게 하기 위해서  `SkeletonView` 에는 몇가지 새로운 것들이 있습니다.
+
+첫번쨰로, `UIView` 에서 skeleton 정보를 보기위해 다음과 같이 지원하고 있습니다:
+```swift
+var skeletonDescription: String
+
+```
+skeleton은 이렇게 생겼습니다:
+
+![](Assets/debug_description.png)
+
+그리고, 새로운 **디버그 모드**를 활성화 시킬 수 있습니다. 간단하게 `SKELETON_DEBUG` 이라는 환경 변수를 추가해 활성화 하면 됩니다.
+
+![](Assets/debug_mode.png)
+
+그런 이후 skeleton이 나오면 Xcode 콘솔창에서 계층 구조를 볼 수 있습니다.
+
+<details>
+<summary>예제를 확인해보세요. </summary>
+<img src="Assets/hierarchy_output.png" />
+</details>
+
+
+
+### 📚 문서화
+조금만 기다려주세요...😅
+
+### 📋 지원 가능한 OS & SDK 버전
+
+* iOS 9.0+
+* tvOS 9.0+
+* Swift 4.2
+
+## 📬 예정된 기능들
+
+* [x] 멀티라인 에서의 마지막 라인의 채우기 비율 설정
+* [x] 더많은 그라디언트 애니메이션
+* [x] resizable cells 지원
+* [x] CollectionView 호환
+* [x] tvOS 호환
+* [x] recovery state 추가
+* [x] Custom default appearance
+* [x] 디버그 모드
+* [ ] Custom collections 호환
+* [ ] skeletons 가 보이거나 가려질때 애니메이션 추가
+* [ ] MacOS 와 WatchOS 호환
+
+## ❤️ 기여하기
+이 프로젝트는 오픈소스 프로젝트 입니다, 마음편하게 기여해주시면 됩니다 어떻게 하냐구요?
+- 새로운 [이슈](https://github.com/Juanpe/SkeletonView/issues/new)를 등록합니다.
+- [email](mailto://juanpecatalan.com)을 보냅니다.
+- 당신의 수정을 제안합니다, pull request를 포함한 수정을 권장합니다.
+
+전체 [기여자목록](https://github.com/Juanpe/SkeletonView/graphs/contributors)
+
+###### [SwiftPlate](https://github.com/JohnSundell/SwiftPlate)를 통해 프로젝트가 생성되었습니다
+
+## 📢 소식들
+
+- [iOS Dev Weekly #327](https://iosdevweekly.com/issues/327#start)
+- [Hacking with Swift Articles](https://www.hackingwithswift.com/articles/40/skeletonview-makes-loading-content-beautiful)
+- [Top 10 Swift Articles November](https://medium.mybridge.co/swift-top-10-articles-for-the-past-month-v-nov-2017-dfed7861cd65)
+- [30 Amazing iOS Swift Libraries (v2018)](https://medium.mybridge.co/30-amazing-ios-swift-libraries-for-the-past-year-v-2018-7cf15027eee9)
+- [AppCoda Weekly #44](http://digest.appcoda.com/issues/appcoda-weekly-issue-44-81899)
+- [iOS Cookies Newsletter #103](https://us11.campaign-archive.com/?u=cd1f3ed33c6527331d82107ba&id=48131a516d)
+- [Swift Developments Newsletter #113](https://andybargh.com/swiftdevelopments-113/)
+- [iOS Goodies #204](http://ios-goodies.com/post/167557280951/week-204)
+- [Swift Weekly #96](http://digest.swiftweekly.com/issues/swift-weekly-issue-96-81759)
+- [CocoaControls](https://www.cocoacontrols.com/controls/skeletonview)
+- [Awesome iOS Newsletter #74](https://ios.libhunt.com/newsletter/74)
+- [Swift News #36](https://www.youtube.com/watch?v=mAGpsQiy6so)
+
+
+
+## 👨🏻‍💻 개발자
+[1.1]: http://i.imgur.com/tXSoThF.png
+[1]: http://www.twitter.com/JuanpeCatalan
+
+* Juanpe Catalán [![alt text][1.1]][1]
+
+<a class="bmc-button" target="_blank" href="https://www.buymeacoffee.com/CDou4xtIK"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy me a coffee" style="height: 41px !important;width: 174px !important;box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;-webkit-box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;"><span style="margin-left:5px"></span></a>
+
+## 👮🏻 라이센스
+
+```
+MIT License
+
+Copyright (c) 2017 Juanpe Catalán
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+```

README_pt-br.md

@@ -0,0 +1,441 @@
+![](Assets/header2.jpg)
+
+<p align="center">
+    <a href="https://github.com/Juanpe/SkeletonView/workflows/build">
+      <img src="https://github.com/Juanpe/SkeletonView/workflows/build/badge.svg">
+    </a>
+    <a href="https://codebeat.co/projects/github-com-juanpe-skeletonview-master"><img alt="codebeat badge" src="https://codebeat.co/badges/f854fdfd-31e5-4689-ba04-075d83653e60" /></a>
+    <img src="https://img.shields.io/badge/Swift-5-orange.svg" />
+    <img src="http://img.shields.io/badge/dependency%20manager-swiftpm%2Bcocoapods%2Bcarthage-green" />
+    <img src="https://img.shields.io/badge/platforms-ios%2Btvos-green" />
+    <a href="https://badge.bow-swift.io/recipe?name=SkeletonView&description=An%20elegant%20way%20to%20show%20users%20that%20something%20is%20happening%20and%20also%20prepare%20them%20to%20which%20contents%20he%20is%20waiting&url=https://github.com/juanpe/skeletonview&owner=Juanpe&avatar=https://avatars0.githubusercontent.com/u/1409041?v=4&tag=1.8.7"><img src="https://raw.githubusercontent.com/bow-swift/bow-art/master/badges/nef-playgrounds-badge.svg" alt="SkeletonView Playground" style="height:20px"></a>   
+    <br/>
+    <a href="https://twitter.com/JuanpeCatalan">
+        <img src="https://img.shields.io/badge/contact-@JuanpeCatalan-blue.svg?style=flat" alt="Twitter: @JuanpeCatalan" />
+    </a>
+    <a href="https://gitter.im/SkeletonView/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge">
+        <img src="https://badges.gitter.im/SkeletonView/community.svg?style=flat" />
+    </a>
+    <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=MJ4Y2D9DEX6FL&lc=ES&item_name=SkeletonView&currency_code=EUR&bn=PP%2dDonationsBF%3abtn_donate_SM%2egif%3aNonHosted">
+        <img src="https://img.shields.io/badge/Donate-PayPal-green.svg" alt="PayPal" />
+    <a href="https://twitter.com/intent/tweet?text=Wow%20This%20library%20is%20awesome:&url=https%3A%2F%2Fgithub.com%2FJuanpe%2FSkeletonView">
+      <img src="https://img.shields.io/twitter/url/https/github.com/Juanpe/SkeletonView.svg?style=social" alt="License" />
+    </a>
+</p>
+
+🌎  Traduções: </br>
+[Original](https://github.com/Juanpe/SkeletonView) </br>
+[🇨🇳](https://github.com/Juanpe/SkeletonView/blob/master/README_zh.md)  [@WhatsXie](https://twitter.com/WhatsXie) </br>
+[🇧🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_pt-br.md)  [@brunomunizaf](https://twitter.com/brunomuniz_af) </br>
+[🇰🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_ko.md)  [@techinpark](https://twitter.com/techinpark) </br>
+[🇫🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_fr.md)  [@OmarJalil](https://github.com/OmarJalil)
+
+Hoje, quase todos os apps têm processos assíncronos, como requisições de API, processos longos, etc. E enquanto os processos estão ocorrendo, normalmente os desenvolvedores usam uma view que mostra os usuarios que algo está ocorrendo.
+
+```SkeletonView``` foi criado para essa necessidade, um jeito elegante de mostrar aos usuários que algo está acontecendo e já prepará-los para qual conteúdo será carregado.
+
+Aproveite! 🙂
+
+* [Features](#-features)
+* [Requerimentos](#-supported-os--sdk-versions)
+* [Projeto de exemplo](#-example)
+* [Instalação](#-installation)
+  * [Cocoapods](#using-cocoapods)
+  * [Carthage](#using-carthage)
+* [Como usar](#-how-to-use)
+  * [Coleções](#-collections)
+  * [Texto em várias linhas](#-multiline-text)
+  * [Cores customizadas](#-custom-colors)
+  * [Aparência](#-appearance)
+  * [Animaçōes customizadas](#-custom-animations)
+  * [Hierarquia](#-hierarchy)
+* [Documentação](#-documentation)
+* [Próximos passos](#-next-steps)
+* [Contribuindo](#-contributing)
+* [Menções](#-mentions)
+* [Autor](#-author)
+* [Licença](#-license)
+
+
+## 🌟 Features
+
+- [x] Fácil de usar
+- [x] Todas as UIViews são skeletonables
+- [x] Completamente customizável
+- [x] Universal (iPhone & iPad)
+- [x] Interface Builder friendly
+- [x] Sintaxe simples em Swift
+- [x] Código leve e legível
+
+### 📋 Versões do SDK e OS suportados
+
+* iOS 9.0+
+* tvOS 9.0+
+* Swift 4.2
+
+### 🔮 Exemplo
+
+Para rodar o projeto de exemplo, clone o repositório e use o target `SkeletonViewExample`.
+
+## 📲 Instalação
+
+#### Usando [CocoaPods](https://cocoapods.org)
+
+Edite seu `Podfile` e especifíque a dependência:
+
+```ruby
+pod "SkeletonView"
+```
+
+#### Usando [Carthage](https://github.com/carthage)
+
+Edite seu `Cartfile` e especifíque a dependência:
+
+```bash
+github "Juanpe/SkeletonView"
+```
+
+## 🐒 Como usar
+
+Apenas **3** passos necessários para usar `SkeletonView`:
+
+**1.** Importe SkeletonView no lugar desejado.
+```swift
+import SkeletonView
+```
+
+**2.** Agora, especifíque quais views serão `skeletonables`. Você consegue fazer isso de duas formas:
+
+**Usando código:**
+```swift
+avatarImageView.isSkeletonable = true
+```
+**Usando IB/Storyboards:**
+
+![](Assets/storyboard.png)
+
+**3.** Uma vez que você setou as views, você pode mostrar o **skeleton**. Para fazê-lo, você tem **4** escolhas:
+
+```swift
+(1) view.showSkeleton()                 // Solid
+(2) view.showGradientSkeleton()         // Gradient
+(3) view.showAnimatedSkeleton()         // Solid animated
+(4) view.showAnimatedGradientSkeleton() // Gradient animated
+```
+
+**Pré-visualização**
+
+<table>
+<tr>
+<td width="25%">
+<center>Solid</center>
+</td>
+<td width="25%">
+<center>Gradient</center>
+</td>
+<td width="25%">
+<center>Solid Animated</center>
+</td>
+<td width="25%">
+<center>Gradient Animated</center>
+</td>
+</tr>
+<tr>
+<td width="25%">
+<img src="Assets/solid.png"></img>
+</td>
+<td width="25%">
+<img src="Assets/gradient.png"></img>
+</td>
+<td width="25%">
+<img src="Assets/solid_animated.gif"></img>
+</td>
+<td width="25%">
+<img src="Assets/gradient_animated.gif"></img>
+</td>
+</tr>
+</table>
+
+> **IMPORTANTE!**
+>>```SkeletonView``` é recursivo, então se você quer mostrar o esqueleto em todas as views skeletonables, você só precisa chamar o método na main container view. Por exemplo, com UIViewControllers
+
+### 🌿 Coleções
+
+```SkeletonView``` é compatível com ```UITableView``` e ```UICollectionView```.
+
+###### UITableView
+
+Se você quer mostrar o skeleton em uma ```UITableView```, você precisa conformar com o protocolo ```SkeletonTableViewDataSource```.
+
+``` swift
+public protocol SkeletonTableViewDataSource: UITableViewDataSource {
+    func numSections(in collectionSkeletonView: UITableView) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+```
+Como você pode ver, esse protocolo herda de ```UITableViewDataSource```, então você pode substituir esse protocolo com o protocolo do skeleton.
+
+Esse protocolo tem uma implementação padrão:
+
+``` swift
+func numSections(in collectionSkeletonView: UITableView) -> Int
+// Default: 1
+```
+
+``` swift
+func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+// Default:
+// It calculates how many cells need to populate whole tableview
+```
+
+Esse é o único método que você precisa implementar para informar o skeleton sobre o cell identifier. Esse método não possui uma implementação padrão:
+ ``` swift
+ func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+ ```
+
+**Exemplo**
+ ``` swift
+ func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier {
+    return "CellIdentifier"
+}
+ ```
+
+> **IMPORTANTE!**
+> Se você está usando resizable cells (`tableView.rowHeight = UITableViewAutomaticDimension` ), é obrigatório definir a `estimatedRowHeight`.
+
+###### UICollectionView
+
+Para ```UICollectionView```, você precisa conformar com o protocolo ```SkeletonCollectionViewDataSource```.
+
+``` swift
+public protocol SkeletonCollectionViewDataSource: UICollectionViewDataSource {
+    func numSections(in collectionSkeletonView: UICollectionView) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, numberOfItemsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, cellIdentifierForItemAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+```
+
+O resto do processo é o mesmo da ```UITableView```
+
+### 📰 Texto de várias linhas
+
+
+![](Assets/multilines2.png)
+
+Quando você usar elementos com texto, ```SkeletonView``` desenha linhas para simular o texto.
+Além disso, você pode decidir quantas linhas você quer. Se ```numberOfLines``` está setado para zero (0), haverá um cálculo para saber quantas linhas são necessárias para preencher o skeleton inteiro e será desenhado. Caso contrário, se você setar para um (1) ou qualquer outro número maior que zero, só serão desenhadas aquele número de linhas.
+
+##### 🎛 Customização
+
+Você pode setar algumas propriedades para elementos de várias linhas.
+
+
+| Property | Values | Default | Preview
+| ------- | ------- |------- | -------
+| **Filling percent** of the last line. | `0...100` | `70%` | ![](Assets/multiline_lastline.png)
+| **Corner radius** of lines. (**NEW**) | `0...10` | `0` | ![](Assets/multiline_corner.png)
+
+
+
+Para modificar a percentagem ou o raio **usando código**, especifique as propriedades:
+```swift
+descriptionTextView.lastLineFillPercent = 50
+descriptionTextView.linesCornerRadius = 5
+```
+
+Ou, se você preferir use **IB/Storyboard**:
+
+![](Assets/multiline_customize.png)
+
+### 🎨 Cores customizadas
+
+Você pode decidir que cor o skeleton esta pintado. Você só precisa parametrizar a cor e o gradiente que deseja.
+
+**Usando cores sólidas**
+``` swift
+view.showSkeleton(usingColor: UIColor.gray) // Solid
+// or
+view.showSkeleton(usingColor: UIColor(red: 25.0, green: 30.0, blue: 255.0, alpha: 1.0))
+```
+**Usando gradientes**
+``` swift
+let gradient = SkeletonGradient(baseColor: UIColor.midnightBlue)
+view.showGradientSkeleton(usingGradient: gradient) // Gradient
+```
+
+Além do mais, ```SkeletonView``` tem 20 cores flat 🤙🏼
+
+```UIColor.turquoise, UIColor.greenSea, UIColor.sunFlower, UIColor.flatOrange  ...```
+
+![](Assets/flatcolors.png)
+###### Imagem capturada do site [https://flatuicolors.com](https://flatuicolors.com)
+
+### 🦋 Aparência
+
+**NOVIDADE** Os skeletons tem uma aparência padrão. Então, quando você não especifíca a cor, gradiente ou propriedades de várias linhas, `SkeletonView` usa os valores padrões.
+
+Valores padrões:
+- **tintColor**: UIColor
+    - *default: .clouds*
+- **gradient**: SkeletonGradient
+  - *default: SkeletonGradient(baseColor: .clouds)*
+- **multilineHeight**: CGFloat
+  - *default: 15*
+- **multilineSpacing**: CGFloat
+  - *default: 10*
+- **multilineLastLineFillPercent**: Int
+  - *default: 70*
+- **multilineCornerRadius**: Int
+  - *default: 0*
+
+Para obter esses valores padrões você pode usar `SkeletonAppearance.default`. Usando essa propriedade você pode declarar os valores também:
+```Swift
+SkeletonAppearance.default.multilineHeight = 20
+SkeletonAppearance.default.tintColor = .green
+```
+
+
+### 🤓 Animações customizadas
+
+```SkeletonView``` tem duas animações pré-definidas, *pulse* para skeletons solidos e *sliding* para gradientes.
+
+Além disso, se você quiser fazer suas próprias animações no skeleton, é muito fácil.
+
+
+Skeleton disponibiliza a função `showAnimatedSkeleton` que tem o closure ```SkeletonLayerAnimation``` onde você pode definir sua animação customizada.
+
+```swift
+public typealias SkeletonLayerAnimation = (CALayer) -> CAAnimation
+```
+
+Você pode chamar esta função assim:
+
+```swift
+view.showAnimatedSkeleton { (layer) -> CAAnimation in
+  let animation = CAAnimation()
+  // Customize here your animation
+
+  return animation
+}
+```
+
+Está disponível ```SkeletonAnimationBuilder```. É um construtor para ```SkeletonLayerAnimation```.
+
+Hoje, você pode criar **sliding animations** para gradientes, decidindo a **direction** e setando a **duration** da animaçāo (padrão = 1.5s).
+
+```swift
+// func makeSlidingAnimation(withDirection direction: GradientDirection, duration: CFTimeInterval = 1.5) -> SkeletonLayerAnimation
+
+let animation = SkeletonAnimationBuilder().makeSlidingAnimation(withDirection: .leftToRight)
+view.showAnimatedGradientSkeleton(usingGradient: gradient, animation: animation)
+
+```
+
+```GradientDirection``` é um enum, com os seguintes cases:
+
+|  Direction | Preview
+|------- | -------
+| .leftRight | ![](Assets/sliding_left_to_right.gif)
+| .rightLeft | ![](Assets/sliding_right_to_left.gif)
+| .topBottom | ![](Assets/sliding_top_to_bottom.gif)
+| .bottomTop | ![](Assets/sliding_bottom_to_top.gif)
+| .topLeftBottomRight | ![](Assets/sliding_topLeft_to_bottomRight.gif)
+| .bottomRightTopLeft | ![](Assets/sliding_bottomRight_to_topLeft.gif)
+
+> **😉 TRUQUE!**
+Existe outra forma de criar sliding animations, apenas usando este atalho:
+>>```let animation = GradientDirection.leftToRight.slidingAnimation()```
+
+### 👨‍👧‍👦 Hierarquia
+
+Já que ```SkeletonView``` é recursiva, e queremos que o skeleton seja muito eficiente, queremos parar a recursão assim que possível. Por este motivo, você deve setar a container view como `Skeletonable`, porque o Skeleton vai parar de procurar por subviews `skeletonable` assim que a view não for mais skeletonable, quebrando a recursão.
+
+Porque uma imagem vale mais que mil palavras:
+
+> ```ìsSkeletonable```= ☠️
+
+| Configuration | Result
+|------- | -------
+|![](Assets/no_skeletonable.png) | ![](Assets/no_skeletonables_result.png)
+|![](Assets/container_no_skeletonable.png) | ![](Assets/no_skeletonables_result.png)
+|![](Assets/container_skeletonable.png) | ![](Assets/container_skeletonable_result.png)
+|![](Assets/all_skeletonables.png) | ![](Assets/all_skeletonables_result.png)
+
+
+
+### 📚 Documentação
+Em breve...😅
+
+## 📬 Próximos passos
+
+* [x] Setar o percentual de preenchimento da última linha em elementos de várias linhas
+* [x] Adicionar mais animações de gradiente
+* [x] Suporte para resizable cells
+* [x] Compatível com CollectionView
+* [x] Compatível com tvOS
+* [x] Adicionar recovery state
+* [x] Aparência padrão customizável
+* [ ] Compatível com coleções customizáveis
+* [ ] Adicionar animações quando mostra/esconde os skeletons
+* [ ] Compatível com MacOS e WatchOS
+
+## ❤️ Contribuindo
+Este é um projeto de código aberto, então sinta-se a vontade para contribuir. Como?
+- Abra uma [issue](https://github.com/Juanpe/SkeletonView/issues/new).
+- Envie feedback por [email](mailto://juanpecatalan.com).
+- Proponha seus próprios fixes, sugestões e abra um pull request com as alterações.
+
+Ver [todos os contribuidores](https://github.com/Juanpe/SkeletonView/graphs/contributors)
+
+###### Projeto gerado com [SwiftPlate](https://github.com/JohnSundell/SwiftPlate)
+
+## 📢 Menções
+
+- [iOS Dev Weekly #327](https://iosdevweekly.com/issues/327#start)
+- [Hacking with Swift Articles](https://www.hackingwithswift.com/articles/40/skeletonview-makes-loading-content-beautiful)
+- [Top 10 Swift Articles November](https://medium.mybridge.co/swift-top-10-articles-for-the-past-month-v-nov-2017-dfed7861cd65)
+- [30 Amazing iOS Swift Libraries (v2018)](https://medium.mybridge.co/30-amazing-ios-swift-libraries-for-the-past-year-v-2018-7cf15027eee9)
+- [AppCoda Weekly #44](http://digest.appcoda.com/issues/appcoda-weekly-issue-44-81899)
+- [iOS Cookies Newsletter #103](https://us11.campaign-archive.com/?u=cd1f3ed33c6527331d82107ba&id=48131a516d)
+- [Swift Developments Newsletter #113](https://andybargh.com/swiftdevelopments-113/)
+- [iOS Goodies #204](http://ios-goodies.com/post/167557280951/week-204)
+- [Swift Weekly #96](http://digest.swiftweekly.com/issues/swift-weekly-issue-96-81759)
+- [CocoaControls](https://www.cocoacontrols.com/controls/skeletonview)
+- [Awesome iOS Newsletter #74](https://ios.libhunt.com/newsletter/74)
+
+
+
+## 👨🏻‍💻 Autor
+[1.1]: http://i.imgur.com/tXSoThF.png
+[1]: http://www.twitter.com/JuanpeCatalan
+
+* Juanpe Catalán [![alt text][1.1]][1]
+
+<a class="bmc-button" target="_blank" href="https://www.buymeacoffee.com/CDou4xtIK"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy me a coffee" style="height: 41px !important;width: 174px !important;box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;-webkit-box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;"><span style="margin-left:5px"></span></a>
+
+## 👮🏻 Licença
+
+```
+MIT License
+
+Copyright (c) 2017 Juanpe Catalán
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+```

README_zh.md

@@ -0,0 +1,416 @@
+![](Assets/header2.jpg)
+
+<p align="center">
+    <a href="https://github.com/Juanpe/SkeletonView/workflows/build">
+      <img src="https://github.com/Juanpe/SkeletonView/workflows/build/badge.svg">
+    </a>
+    <a href="https://codebeat.co/projects/github-com-juanpe-skeletonview-master"><img alt="codebeat badge" src="https://codebeat.co/badges/f854fdfd-31e5-4689-ba04-075d83653e60" /></a>
+    <img src="https://img.shields.io/badge/Swift-5-orange.svg" />
+    <img src="http://img.shields.io/badge/dependency%20manager-swiftpm%2Bcocoapods%2Bcarthage-green" />
+    <img src="https://img.shields.io/badge/platforms-ios%2Btvos-green" />
+    <a href="https://badge.bow-swift.io/recipe?name=SkeletonView&description=An%20elegant%20way%20to%20show%20users%20that%20something%20is%20happening%20and%20also%20prepare%20them%20to%20which%20contents%20he%20is%20waiting&url=https://github.com/juanpe/skeletonview&owner=Juanpe&avatar=https://avatars0.githubusercontent.com/u/1409041?v=4&tag=1.8.7"><img src="https://raw.githubusercontent.com/bow-swift/bow-art/master/badges/nef-playgrounds-badge.svg" alt="SkeletonView Playground" style="height:20px"></a>   
+    <br/>
+    <a href="https://twitter.com/JuanpeCatalan">
+        <img src="https://img.shields.io/badge/contact-@JuanpeCatalan-blue.svg?style=flat" alt="Twitter: @JuanpeCatalan" />
+    </a>
+    <a href="https://gitter.im/SkeletonView/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge">
+        <img src="https://badges.gitter.im/SkeletonView/community.svg?style=flat" />
+    </a>
+    <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=MJ4Y2D9DEX6FL&lc=ES&item_name=SkeletonView&currency_code=EUR&bn=PP%2dDonationsBF%3abtn_donate_SM%2egif%3aNonHosted">
+        <img src="https://img.shields.io/badge/Donate-PayPal-green.svg" alt="PayPal" />
+    <a href="https://twitter.com/intent/tweet?text=Wow%20This%20library%20is%20awesome:&url=https%3A%2F%2Fgithub.com%2FJuanpe%2FSkeletonView">
+      <img src="https://img.shields.io/twitter/url/https/github.com/Juanpe/SkeletonView.svg?style=social" alt="License" />
+    </a>
+</p>
+
+🌎  翻译: [ [原版的](https://github.com/Juanpe/SkeletonView) ] </br>
+[Original](https://github.com/Juanpe/SkeletonView) </br>
+[🇨🇳](https://github.com/Juanpe/SkeletonView/blob/master/README_zh.md)  [@WhatsXie](https://twitter.com/WhatsXie) </br>
+[🇧🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_pt-br.md)  [@brunomunizaf](https://twitter.com/brunomuniz_af) </br>
+[🇰🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_ko.md)  [@techinpark](https://twitter.com/techinpark) </br>
+[🇫🇷](https://github.com/Juanpe/SkeletonView/blob/master/README_fr.md)  [@OmarJalil](https://github.com/OmarJalil)
+
+今天，几乎所有的应用程序都有异步流程，例如：Api请求、长时间运行的流程等。虽然流程正在运行，但通常开发人员会设置一个加载视图来向用户显示正在发生的事情。
+
+```SkeletonView``` 已经构想出来满足这种需求，这是一种优雅的方式，向用户展示正在发生的事情，并为他们等待的内容做好准备。
+
+好好享受! 🙂
+
+* [特征](#-特征)
+* [版本要求](#-版本要求)
+* [示例项目](#-示例)
+* [安装](#-安装)
+  * [Cocoapods](#使用-cocoapods)
+  * [Carthage](#使用-carthage)
+* [如何使用](#-如何使用)
+  * [集合](#-集合)
+  * [多行文字](#-多行文字)
+  * [自定义颜色](#-自定义颜色)
+  * [自定义动画](#-自定义动画)
+  * [等级制度](#-等级制度)
+* [文档](#-文档)
+* [下一步](#-下一步)
+* [特约](#-特约)
+* [提及](#-提及)
+* [作者](#-作者)
+* [许可证](#-许可证)
+
+
+## 🌟 特征
+
+- [x] 使用方便
+- [x] 支持所有 UIView
+- [x] 完全可定制
+- [x] 通用（iPhone和iPad）
+- [x] Interface Builder 友好
+- [x] 简单的 Swift 语法
+- [x] 轻量级可读代码库
+
+### 📋 版本要求
+
+* iOS 10.0+
+* tvOS 10.0+
+* Swift 4.2
+
+### 🔮 示例
+
+要运行示例项目，请克隆并运行 `SkeletonViewExample` 项目。
+
+## 📲 安装
+
+#### 使用 [CocoaPods](https://cocoapods.org)
+
+使用 CocoaPods 编辑您的 Podfile 并指定依赖项：
+
+```ruby
+pod "SkeletonView"
+```
+
+#### 使用 [Carthage](https://github.com/carthage)
+
+编辑您的 Cartfile 并指定依赖项:
+
+```bash
+github "Juanpe/SkeletonView"
+```
+
+## 🐒 如何使用
+
+只需 **3** 个步骤即可使用 `SkeletonView`:
+
+**1.** 在适当的位置导入SkeletonView
+```swift
+import SkeletonView
+```
+
+**2.** 现在，您可以通过两种设置方式实现 `SkeletonView` 效果
+
+**使用纯代码：**
+```swift
+avatarImageView.isSkeletonable = true
+```
+**使用 IB/Storyboards：**
+
+![](Assets/storyboard.png)
+
+**3.** 设置视图后，可以显示 **skeleton**. 并且您有 **4** 种效果可供选择:
+
+```swift
+(1) view.showSkeleton()                 // 固体
+(2) view.showGradientSkeleton()         // 渐变
+(3) view.showAnimatedSkeleton()         // 纯色动画
+(4) view.showAnimatedGradientSkeleton() // 渐变动画
+```
+
+**Preview**
+
+<table>
+<tr>
+<td width="25%">
+<center>固体</center>
+</td>
+<td width="25%">
+<center>渐变</center>
+</td>
+<td width="25%">
+<center>纯色动画</center>
+</td>
+<td width="25%">
+<center>渐变动画</center>
+</td>
+</tr>
+<tr>
+<td width="25%">
+<img src="Assets/solid.png"></img>
+</td>
+<td width="25%">
+<img src="Assets/gradient.png"></img>
+</td>
+<td width="25%">
+<img src="Assets/solid_animated.gif"></img>
+</td>
+<td width="25%">
+<img src="Assets/gradient_animated.gif"></img>
+</td>
+</tr>
+</table>
+
+> **重要!**
+>>```SkeletonView``` 是递归的，所以如果你想在所有可骨架化的视图中显示骨架，你只需要在主容器视图中调用show方法。例如，使用UIViewControllers
+
+### 🌿 集合
+
+现在，```SkeletonView``` 兼容 ```UITableView``` 和 ```UICollectionView```。
+
+###### UITableView
+
+如果你要显示 skeleton 在一个 ```UITableView```上，你需要符合 ```SkeletonTableViewDataSource``` 协议。
+
+``` swift
+public protocol SkeletonTableViewDataSource: UITableViewDataSource {
+    func numSections(in collectionSkeletonView: UITableView) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+```
+如您所见，此协议继承自 UITableViewDataSource，因此您可以使用骨架协议替换此协议。
+
+该协议具有默认实现：
+
+``` swift
+func numSections(in collectionSkeletonView: UITableView) -> Int
+// 默认值：1
+```
+
+``` swift
+func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+// 默认值：
+// 它计算填充整个tableview需要多少个单元格
+```
+
+为了让Skeleton知道单元标识符，您只需要实现一种方法。此方法没有默认实现：
+
+ ``` swift
+ func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+ ```
+
+**示例**
+ ``` swift
+ func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier {
+    return "CellIdentifier"
+}
+ ```
+
+> **重要!**
+> 如果您使用可调整大小的单元格 (`tableView.rowHeight = UITableViewAutomaticDimension` )，则必须定义 `estimatedRowHeight`。
+
+###### UICollectionView
+
+要为 ```UICollectionView``` 设置效果, 您需要符合 ```SkeletonCollectionViewDataSource``` 协议。
+
+``` swift
+public protocol SkeletonCollectionViewDataSource: UICollectionViewDataSource {
+    func numSections(in collectionSkeletonView: UICollectionView) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, numberOfItemsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, cellIdentifierForItemAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+```
+
+其余操作与 ```UITableView``` 相同。
+
+### 📰 多行文字
+
+
+![](Assets/multilines2.png)
+
+使用带有文本的元素时， ```SkeletonView``` 绘制线条以模拟文本。此外，您可以决定您想要多少行。如果 ```numberOfLines``` 设置为零，它将计算填充整个骨架所需的行数，并将绘制它。相反，如果将其设置为一，二或任何大于零的数字，它将只绘制此行数。
+
+##### 🎛 定制
+
+您可以为多行元素设置一些属性。
+
+
+| 属性 | 值范围 | 默认 | 延时
+| ------- | ------- |------- | -------
+| **Filling percent** 最后一行的长度百分比 | `0...100` | `70%` | ![](Assets/multiline_lastline.png)
+| **Corner radius** 条目圆角半径. (**新**) | `0...10` | `0` | ![](Assets/multiline_corner.png)
+
+
+
+**纯代码**修改百分比或半径：
+
+```swift
+descriptionTextView.lastLineFillPercent = 50
+descriptionTextView.linesCornerRadius = 5
+```
+
+或者，如果您更喜欢使用 **IB/Storyboard**:
+
+![](Assets/multiline_customize.png)
+
+### 🎨 自定义颜色
+
+您可以决定 ```SkeletonView``` 的显示颜色。您只需要传递颜色或渐变的参数。
+
+**使用纯色**
+``` swift
+view.showSkeleton(usingColor: UIColor.gray) // 固体效果
+// 或者
+view.showSkeleton(usingColor: UIColor(red: 25.0, green: 30.0, blue: 255.0, alpha: 1.0))
+```
+**使用渐变色**
+``` swift
+let gradient = SkeletonGradient(baseColor: UIColor.midnightBlue)
+view.showGradientSkeleton(usingGradient: gradient) // 梯度效果
+```
+
+此外， ```SkeletonView``` 附带的 20 种颜色 🤙🏼
+
+```UIColor.turquoise, UIColor.greenSea, UIColor.sunFlower, UIColor.flatOrange  ...```
+
+![](Assets/flatcolors.png)
+###### 从网站 [https://flatuicolors.com](https://flatuicolors.com)捕获的图像
+
+### 🤓 自定义动画
+
+现在，```SkeletonView``` 有两个内置动画，*pulse* 脉冲效果和 *sliding* 渐变滑动效果。
+
+此外，如果你想做自己的 skeleton 动画，那真的很容易。
+
+
+Skeleton 提供了 `showAnimatedSkeleton` 一个具有 ```SkeletonLayerAnimation``` 闭包的功能，您可以在其中定义自定义动画。
+
+```swift
+public typealias SkeletonLayerAnimation = (CALayer) -> CAAnimation
+```
+
+您可以像这样调用函数：
+
+```swift
+view.showAnimatedSkeleton { (layer) -> CAAnimation in
+  let animation = CAAnimation()
+  // 在这里自定义你的动画
+
+  return animation
+}
+```
+
+**新** 它可用 ```SkeletonAnimationBuilder```。这是一个 ```SkeletonLayerAnimation```的衍生。
+
+今天，您可以为渐变创建 **滑动动画**，确定 **方向** 并设置动画的 **持续时间**  (默认值 = 1.5s)。
+
+```swift
+// func makeSlidingAnimation(withDirection direction: GradientDirection, duration: CFTimeInterval = 1.5) -> SkeletonLayerAnimation
+
+let animation = SkeletonAnimationBuilder().makeSlidingAnimation(withDirection: .leftToRight)
+view.showAnimatedGradientSkeleton(usingGradient: gradient, animation: animation)
+
+```
+
+```GradientDirection``` 是一个枚举，在这种情况下：
+
+|  方向 | 效果
+|------- | -------
+| .leftRight | ![](Assets/sliding_left_to_right.gif)
+| .rightLeft | ![](Assets/sliding_right_to_left.gif)
+| .topBottom | ![](Assets/sliding_top_to_bottom.gif)
+| .bottomTop | ![](Assets/sliding_bottom_to_top.gif)
+| .topLeftBottomRight | ![](Assets/sliding_topLeft_to_bottomRight.gif)
+| .bottomRightTopLeft | ![](Assets/sliding_bottomRight_to_topLeft.gif)
+
+> **😉 技巧!**
+存在另一种创建滑动动画的方法，只需使用此快捷方式：
+>>```let animation = GradientDirection.leftToRight.slidingAnimation()```
+
+### 👨‍👧‍👦 等级制度
+
+由于 ```SkeletonView``` 是递归的，我们希望 skeleton 效率高效, 我们希望尽快停止递归。因此，您必须将容器视图设置为 `Skeletonable` ，因为`skeletonable` 一旦视图不是 Skeletonable, Skeleton 将停止查找子视图，然后断开递归。
+
+一图胜千言：
+
+> 设置 ```ìsSkeletonable```= ☠️
+
+| 分组 | 结果
+|------- | -------
+|![](Assets/no_skeletonable.png) | ![](Assets/no_skeletonables_result.png)
+|![](Assets/container_no_skeletonable.png) | ![](Assets/no_skeletonables_result.png)
+|![](Assets/container_skeletonable.png) | ![](Assets/container_skeletonable_result.png)
+|![](Assets/all_skeletonables.png) | ![](Assets/all_skeletonables_result.png)
+
+
+
+### 📚 文档
+快出来...😅
+
+## 📬 下一步
+
+* [x] 设置多行元素中最后一行的填充百分比
+* [x] 添加更多渐变动画
+* [x] 支持可调整大小的单元
+* [x] CollectionView 兼容
+* [x] tvOS 兼容
+* [x] 添加恢复状态
+* [ ] 自定义集合兼容
+* [ ] 在显示/隐藏骨架时添加动画
+* [ ] MacOS 和 WatchOS兼容
+
+## ❤️ 特约
+这是一个开源项目，所以请随时贡献。怎么样？
+
+- 打开一个 [issue](https://github.com/Juanpe/SkeletonView/issues/new)
+- 反馈通过发送 [email](mailto://juanpecatalan.com)
+- 提出您自己的修复和建议，并带有拉取的请求。
+
+查看 [所有贡献者](https://github.com/Juanpe/SkeletonView/graphs/contributors)
+
+###### 使用 [SwiftPlate](https://github.com/JohnSundell/SwiftPlate) 生成的项目
+
+## 📢 提及
+
+- [iOS Dev Weekly #327](https://iosdevweekly.com/issues/327#start)
+- [Hacking with Swift Articles](https://www.hackingwithswift.com/articles/40/skeletonview-makes-loading-content-beautiful)
+- [Top 10 Swift Articles November](https://medium.mybridge.co/swift-top-10-articles-for-the-past-month-v-nov-2017-dfed7861cd65)
+- [30 Amazing iOS Swift Libraries (v2018)](https://medium.mybridge.co/30-amazing-ios-swift-libraries-for-the-past-year-v-2018-7cf15027eee9)
+- [AppCoda Weekly #44](http://digest.appcoda.com/issues/appcoda-weekly-issue-44-81899)
+- [iOS Cookies Newsletter #103](https://us11.campaign-archive.com/?u=cd1f3ed33c6527331d82107ba&id=48131a516d)
+- [Swift Developments Newsletter #113](https://andybargh.com/swiftdevelopments-113/)
+- [iOS Goodies #204](http://ios-goodies.com/post/167557280951/week-204)
+- [Swift Weekly #96](http://digest.swiftweekly.com/issues/swift-weekly-issue-96-81759)
+- [CocoaControls](https://www.cocoacontrols.com/controls/skeletonview)
+- [Awesome iOS Newsletter #74](https://ios.libhunt.com/newsletter/74)
+
+
+
+## 👨🏻‍💻 作者
+[1.1]: http://i.imgur.com/tXSoThF.png
+[1]: http://www.twitter.com/JuanpeCatalan
+
+* Juanpe Catalán [![alt text][1.1]][1]
+
+<a class="bmc-button" target="_blank" href="https://www.buymeacoffee.com/CDou4xtIK"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy me a coffee" style="height: 41px !important;width: 174px !important;box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;-webkit-box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;"><span style="margin-left:5px"></span></a>
+
+## 👮🏻 许可证
+
+```
+MIT License
+
+Copyright (c) 2017 Juanpe Catalán
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+```

SkeletonView.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "SkeletonView"
-  s.version      = "1.0.4"
+  s.version      = "1.8.8"
   s.summary      = "An elegant way to show users that something is happening and also prepare them to which contents he is waiting"
   s.description  = <<-DESC
   Today almost all apps have async processes, as API requests, long runing processes, etc. And while the processes are working, usually developers place a loading view to show users that something is going on.
@@ -11,6 +11,8 @@ Pod::Spec.new do |s|
   s.author             = { "Juanpe Catalán" => "juanpecm@gmail.com" }
   s.social_media_url   = "https://twitter.com/JuanpeCatalan"
   s.ios.deployment_target = "9.0"
+  s.tvos.deployment_target = "9.0"
+  s.swift_version = "5.0"
   s.source       = { :git => "https://github.com/Juanpe/SkeletonView.git", :tag => s.version.to_s }
   s.source_files  = "Sources/**/*"
 end

SkeletonView.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

SkeletonView.xcodeproj/xcshareddata/IDETemplateMacros.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>FILEHEADER</key>
+	<string> ___COPYRIGHT___</string>
+</dict>
+</plist>

SkeletonView.xcodeproj/xcshareddata/xcschemes/SkeletonView-iOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0910"
+   LastUpgradeVersion = "1020"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -26,10 +26,18 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      language = ""
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
       </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "52D6D97B1BEFF229002C0205"
+            BuildableName = "SkeletonView.framework"
+            BlueprintName = "SkeletonView-iOS"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
       <AdditionalOptions>
       </AdditionalOptions>
    </TestAction>
@@ -37,7 +45,6 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      language = ""
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"

SkeletonView.xcodeproj/xcshareddata/xcschemes/SkeletonView-tvOS.xcscheme

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1020"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "17DD0DFF207FB27400C56334"
+               BuildableName = "SkeletonView.framework"
+               BlueprintName = "SkeletonView-tvOS"
+               ReferencedContainer = "container:SkeletonView.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "17DD0DFF207FB27400C56334"
+            BuildableName = "SkeletonView.framework"
+            BlueprintName = "SkeletonView-tvOS"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "17DD0DFF207FB27400C56334"
+            BuildableName = "SkeletonView.framework"
+            BlueprintName = "SkeletonView-tvOS"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

SkeletonView.xcodeproj/xcshareddata/xcschemes/SkeletonViewExample.xcscheme

@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1020"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "F5F899F11FABA607002E8FDA"
+               BuildableName = "SkeletonViewExample.app"
+               BlueprintName = "SkeletonViewExample"
+               ReferencedContainer = "container:SkeletonView.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "F5F899F11FABA607002E8FDA"
+            BuildableName = "SkeletonViewExample.app"
+            BlueprintName = "SkeletonViewExample"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "F5F899F11FABA607002E8FDA"
+            BuildableName = "SkeletonViewExample.app"
+            BlueprintName = "SkeletonViewExample"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "F5F899F11FABA607002E8FDA"
+            BuildableName = "SkeletonViewExample.app"
+            BlueprintName = "SkeletonViewExample"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

SkeletonView.xcodeproj/xcshareddata/xcschemes/SkeletonViewExampleUICollectionView.xcscheme

@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1020"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "42ABD05A210B548200BEEFF4"
+               BuildableName = "SkeletonViewExampleUICollectionView.app"
+               BlueprintName = "SkeletonViewExampleUICollectionView"
+               ReferencedContainer = "container:SkeletonView.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "42ABD05A210B548200BEEFF4"
+            BuildableName = "SkeletonViewExampleUICollectionView.app"
+            BlueprintName = "SkeletonViewExampleUICollectionView"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "42ABD05A210B548200BEEFF4"
+            BuildableName = "SkeletonViewExampleUICollectionView.app"
+            BlueprintName = "SkeletonViewExampleUICollectionView"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "42ABD05A210B548200BEEFF4"
+            BuildableName = "SkeletonViewExampleUICollectionView.app"
+            BlueprintName = "SkeletonViewExampleUICollectionView"
+            ReferencedContainer = "container:SkeletonView.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

Sources/Appearance/SkeletonAppearance.swift

@@ -0,0 +1,37 @@
+//  Copyright © 2017 SkeletonView. All rights reserved.
+
+import UIKit
+
+public protocol Appearance {
+    var tintColor: UIColor { get set }
+    var gradient: SkeletonGradient { get set }
+    var multilineHeight: CGFloat { get set }
+    var multilineSpacing: CGFloat { get set }
+    var multilineLastLineFillPercent: Int { get set }
+    var multilineCornerRadius: Int { get set }
+    var renderSingleLineAsView: Bool { get set }
+}
+
+public enum SkeletonAppearance {
+    public static var `default`: Appearance = SkeletonViewAppearance.shared
+}
+
+// codebeat:disable[TOO_MANY_IVARS]
+class SkeletonViewAppearance: Appearance {
+    static var shared = SkeletonViewAppearance()
+
+    var tintColor: UIColor = .skeletonDefault
+
+    var gradient: SkeletonGradient = SkeletonGradient(baseColor: .skeletonDefault)
+
+    var multilineHeight: CGFloat = 15
+
+    var multilineSpacing: CGFloat = 10
+
+    var multilineLastLineFillPercent: Int = 70
+
+    var multilineCornerRadius: Int = 0
+    
+    var renderSingleLineAsView: Bool = false
+}
+// codebeat:enable[TOO_MANY_IVARS]

Sources/Builders/SkeletonLayerBuilder.swift

@@ -0,0 +1,40 @@
+// Copyright © 2018 SkeletonView. All rights reserved.
+
+import UIKit
+
+/// Object that facilitates the creation of skeleton layers,
+/// based on the builder pattern
+class SkeletonLayerBuilder {
+    var skeletonType: SkeletonType?
+    var colors: [UIColor] = []
+    var holder: UIView?
+
+    func setSkeletonType(_ type: SkeletonType) -> SkeletonLayerBuilder {
+        self.skeletonType = type
+        return self
+    }
+
+    func addColor(_ color: UIColor) -> SkeletonLayerBuilder {
+        return addColors([color])
+    }
+
+    func addColors(_ colors: [UIColor]) -> SkeletonLayerBuilder {
+        self.colors.append(contentsOf: colors)
+        return self
+    }
+
+    func setHolder(_ holder: UIView) -> SkeletonLayerBuilder {
+        self.holder = holder
+        return self
+	}
+	
+	func build() -> SkeletonLayer? {
+		guard let type = skeletonType,
+			let holder = holder
+			else { return nil }
+		
+		return SkeletonLayer(type: type,
+							 colors: colors,
+							 skeletonHolder: holder)
+	}
+}

Sources/Builders/SkeletonMultilineLayerBuilder.swift

@@ -0,0 +1,69 @@
+// Copyright © 2018 SkeletonView. All rights reserved.
+
+import UIKit
+
+/// Object that facilitates the creation of skeleton layers for multiline
+/// elements, based on the builder pattern
+class SkeletonMultilineLayerBuilder {
+    var skeletonType: SkeletonType?
+    var index: Int?
+    var height: CGFloat?
+    var width: CGFloat?
+    var cornerRadius: Int?
+    var multilineSpacing: CGFloat = SkeletonAppearance.default.multilineSpacing
+    var paddingInsets: UIEdgeInsets = .zero
+
+    func setSkeletonType(_ type: SkeletonType) -> SkeletonMultilineLayerBuilder {
+        self.skeletonType = type
+        return self
+    }
+
+    func setIndex(_ index: Int) -> SkeletonMultilineLayerBuilder {
+        self.index = index
+        return self
+    }
+
+    func setHeight(_ height: CGFloat) -> SkeletonMultilineLayerBuilder {
+           self.height = height
+           return self
+       }
+    
+    func setWidth(_ width: CGFloat) -> SkeletonMultilineLayerBuilder {
+        self.width = width
+        return self
+    }
+
+    func setCornerRadius(_ radius: Int) -> SkeletonMultilineLayerBuilder {
+        self.cornerRadius = radius
+        return self
+    }
+
+    func setMultilineSpacing(_ spacing: CGFloat) -> SkeletonMultilineLayerBuilder {
+        self.multilineSpacing = spacing
+        return self
+    }
+
+    func setPadding(_ insets: UIEdgeInsets) -> SkeletonMultilineLayerBuilder {
+        self.paddingInsets = insets
+        return self
+    }
+
+    func build() -> CALayer? {
+        guard let type = skeletonType,
+              let index = index,
+              let width = width,
+              let height = height,
+              let radius = cornerRadius
+            else { return nil }
+
+        let layer = type.layer
+        layer.anchorPoint = .zero
+        layer.name = CALayer.skeletonSubLayersName
+        layer.updateLayerFrame(for: index, size: CGSize(width: width, height: height), multilineSpacing: self.multilineSpacing, paddingInsets: paddingInsets)
+
+        layer.cornerRadius = CGFloat(radius)
+        layer.masksToBounds = true
+
+        return layer
+    }
+}

Sources/Collections/CollectionSkeletonProtocol.swift

@@ -8,72 +8,27 @@
 
 import UIKit
 
-extension UIView {
-    
-    func addDummyDataSourceIfNeeded() {
-        guard let collection = self as? CollectionSkeleton else { return }
-        collection.addDummyDataSource()
-        collection.disableScrolling()
-    }
-    
-    func removeDummyDataSourceIfNeeded(reloadAfter reload: Bool = true) {
-        guard let collection = self as? CollectionSkeleton else { return }
-        collection.removeDummyDataSource(reloadAfter: reload)
-        collection.enableScrolling()
-    }
+enum CollectionAssociatedKeys {
+    static var dummyDataSource = "dummyDataSource"
+    static var dummyDelegate = "dummyDelegate"
 }
 
 protocol CollectionSkeleton {
     var skeletonDataSource: SkeletonCollectionDataSource? { get set }
+    var skeletonDelegate: SkeletonCollectionDelegate? { get set }
+    var estimatedNumberOfRows: Int { get }
+    
     func addDummyDataSource()
+    func updateDummyDataSource()
     func removeDummyDataSource(reloadAfter: Bool)
-    func disableScrolling()
-    func enableScrolling()
-}
-
-private enum AssociatedKeys {
-    static var dummyDataSource = "dummyDataSource"
+    func disableUserInteraction()
+    func enableUserInteraction()
 }
 
 extension CollectionSkeleton where Self: UIScrollView {
-    
+    var estimatedNumberOfRows: Int { return 0 }
     func addDummyDataSource() {}
     func removeDummyDataSource(reloadAfter: Bool) {}
-    func disableScrolling() { isScrollEnabled = false }
-    func enableScrolling() { isScrollEnabled = true }
-}
-
-extension UITableView: CollectionSkeleton {
-    
-    var skeletonDataSource: SkeletonCollectionDataSource? {
-        get { return objc_getAssociatedObject(self, &AssociatedKeys.dummyDataSource) as? SkeletonCollectionDataSource }
-        set {
-            objc_setAssociatedObject(self, &AssociatedKeys.dummyDataSource, newValue, AssociationPolicy.retain.objc)
-            self.dataSource = newValue
-        }
-    }
-    
-    func addDummyDataSource() {
-        guard let originalDataSource = self.dataSource as? SkeletonTableViewDataSource,
-              !(originalDataSource is SkeletonCollectionDataSource)
-            else { return }
-        let dataSource = SkeletonCollectionDataSource(tableViewDataSource: originalDataSource)
-        self.skeletonDataSource = dataSource
-        reloadData()
-    }
-    
-    func removeDummyDataSource(reloadAfter: Bool) {
-        guard let dataSource = self.dataSource as? SkeletonCollectionDataSource else { return }
-        self.skeletonDataSource = nil
-        self.dataSource = dataSource.originalTableViewDataSource
-        if reloadAfter { self.reloadData() }
-    }
-}
-
-extension UICollectionView: CollectionSkeleton {
-    
-    var skeletonDataSource: SkeletonCollectionDataSource? {
-        get { return objc_getAssociatedObject(self, &AssociatedKeys.dummyDataSource) as? SkeletonCollectionDataSource }
-        set { objc_setAssociatedObject(self, &AssociatedKeys.dummyDataSource, newValue, AssociationPolicy.retain.objc) }
-    }
+    func disableUserInteraction() { isUserInteractionEnabled = false; isScrollEnabled = false }
+    func enableUserInteraction() { isUserInteractionEnabled = true; isScrollEnabled = true }
 }

Sources/Collections/CollectionViews/SkeletonCollectionViewProtocols.swift

@@ -0,0 +1,34 @@
+//
+//  SkeletonCollectionViewProtocols.swift
+//  SkeletonView-iOS
+//
+//  Created by Juanpe Catalán on 06/11/2017.
+//  Copyright © 2017 SkeletonView. All rights reserved.
+//
+
+import UIKit
+
+
+public protocol SkeletonCollectionViewDataSource: UICollectionViewDataSource {
+    func numSections(in collectionSkeletonView: UICollectionView) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, numberOfItemsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UICollectionView, cellIdentifierForItemAt indexPath: IndexPath) -> ReusableCellIdentifier
+    func collectionSkeletonView(_ skeletonView: UICollectionView, supplementaryViewIdentifierOfKind: String, at indexPath: IndexPath) -> ReusableCellIdentifier?
+}
+
+public extension SkeletonCollectionViewDataSource {
+    func collectionSkeletonView(_ skeletonView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
+        return skeletonView.estimatedNumberOfRows
+    }
+    
+    func collectionSkeletonView(_ skeletonView: UICollectionView,
+                                supplementaryViewIdentifierOfKind: String,
+                                at indexPath: IndexPath) -> ReusableCellIdentifier? {
+        return nil
+    }
+    
+    func numSections(in collectionSkeletonView: UICollectionView) -> Int { return 1 }
+}
+
+public protocol SkeletonCollectionViewDelegate: UICollectionViewDelegate { }
+

Sources/Collections/CollectionViews/UICollectionView+CollectionSkeleton.swift

@@ -0,0 +1,78 @@
+//
+//  UICollectionView+CollectionSkeleton.swift
+//  SkeletonView-iOS
+//
+//  Created by Juanpe Catalán on 02/02/2018.
+//  Copyright © 2018 SkeletonView. All rights reserved.
+//
+
+import UIKit
+
+extension UICollectionView: CollectionSkeleton {
+    var estimatedNumberOfRows: Int {
+        guard let flowlayout = collectionViewLayout as? UICollectionViewFlowLayout else { return 0 }
+        return Int(ceil(frame.height/flowlayout.itemSize.height))
+    }
+    
+    var skeletonDataSource: SkeletonCollectionDataSource? {
+        get { return ao_get(pkey: &CollectionAssociatedKeys.dummyDataSource) as? SkeletonCollectionDataSource }
+        set {
+            ao_setOptional(newValue, pkey: &CollectionAssociatedKeys.dummyDataSource)
+            self.dataSource = newValue
+        }
+    }
+    
+    var skeletonDelegate: SkeletonCollectionDelegate? {
+        get { return ao_get(pkey: &CollectionAssociatedKeys.dummyDelegate) as? SkeletonCollectionDelegate }
+        set {
+            ao_setOptional(newValue, pkey: &CollectionAssociatedKeys.dummyDelegate)
+            self.delegate = newValue
+        }
+    }
+    
+    func addDummyDataSource() {
+        guard let originalDataSource = self.dataSource as? SkeletonCollectionViewDataSource,
+            !(originalDataSource is SkeletonCollectionDataSource)
+            else { return }
+        
+        let dataSource = SkeletonCollectionDataSource(collectionViewDataSource: originalDataSource)
+        self.skeletonDataSource = dataSource
+        reloadData()
+    }
+    
+    func updateDummyDataSource() {
+        if (dataSource as? SkeletonCollectionDataSource) != nil {
+            reloadData()
+        } else {
+            addDummyDataSource()
+        }
+    }
+    
+    func removeDummyDataSource(reloadAfter: Bool) {
+        guard let dataSource = self.dataSource as? SkeletonCollectionDataSource else { return }
+        self.skeletonDataSource = nil
+        self.dataSource = dataSource.originalCollectionViewDataSource
+        if reloadAfter { self.reloadData() }
+    }
+}
+
+extension UICollectionView: GenericCollectionView {
+    var scrollView: UIScrollView { return self }
+}
+
+public extension UICollectionView {
+    func prepareSkeleton(completion: @escaping (Bool) -> Void) {
+        guard let originalDataSource = self.dataSource as? SkeletonCollectionViewDataSource,
+            !(originalDataSource is SkeletonCollectionDataSource)
+            else { return }
+        
+        let dataSource = SkeletonCollectionDataSource(collectionViewDataSource: originalDataSource, rowHeight: 0.0)
+        self.skeletonDataSource = dataSource
+        performBatchUpdates({
+            self.reloadData()
+        }) { (done) in
+            completion(done)
+            
+        }
+    }
+}

Sources/Collections/Generics/GenericCollectionView.swift

@@ -0,0 +1,13 @@
+//
+//  GenericCollectionView.swift
+//  SkeletonView-iOS
+//
+//  Created by Juanpe Catalán on 30/03/2018.
+//  Copyright © 2018 SkeletonView. All rights reserved.
+//
+
+import UIKit
+
+protocol GenericCollectionView {
+    var scrollView: UIScrollView { get }
+}

Sources/Collections/Generics/SkeletonReusableCell.swift

@@ -0,0 +1,15 @@
+//
+//  SkeletonReusableCell.swift
+//  SkeletonView-iOS
+//
+//  Created by Juanpe Catalán on 30/03/2018.
+//  Copyright © 2018 SkeletonView. All rights reserved.
+//
+
+import UIKit
+
+public protocol SkeletonReusableCell { }
+
+extension UITableViewCell: SkeletonReusableCell { }
+
+extension UICollectionViewCell: SkeletonReusableCell { }

Sources/Collections/SkeletonCollectionDataSource.swift

@@ -11,47 +11,77 @@ import UIKit
 public typealias ReusableCellIdentifier = String
 
 class SkeletonCollectionDataSource: NSObject {
-    
     weak var originalTableViewDataSource: SkeletonTableViewDataSource?
-    weak var originalCollectionViewDataSource: UICollectionViewDataSource?
+    weak var originalCollectionViewDataSource: SkeletonCollectionViewDataSource?
+    var rowHeight: CGFloat = 0.0
+    var originalRowHeight: CGFloat = 0.0
     
-    convenience init(tableViewDataSource: SkeletonTableViewDataSource? = nil, collectionViewDataSource: UICollectionViewDataSource? = nil) {
+    convenience init(tableViewDataSource: SkeletonTableViewDataSource? = nil, collectionViewDataSource: SkeletonCollectionViewDataSource? = nil, rowHeight: CGFloat = 0.0, originalRowHeight: CGFloat = 0.0) {
         self.init()
         self.originalTableViewDataSource = tableViewDataSource
         self.originalCollectionViewDataSource = collectionViewDataSource
+        self.rowHeight = rowHeight
+        self.originalRowHeight = originalRowHeight
     }
 }
 
 // MARK: - UITableViewDataSource
 extension SkeletonCollectionDataSource: UITableViewDataSource {
-    
     func numberOfSections(in tableView: UITableView) -> Int {
-        return originalTableViewDataSource?.numSections(in:tableView) ?? 0
+        return originalTableViewDataSource?.numSections(in: tableView) ?? 0
     }
     
     func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
-        return originalTableViewDataSource?.collectionSkeletonView(tableView, numberOfRowsInSection:section) ?? 0
+        return originalTableViewDataSource?.collectionSkeletonView(tableView, numberOfRowsInSection: section) ?? 0
     }
     
     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
-        let cellIdentifier = originalTableViewDataSource?.collectionSkeletonView(tableView, cellIdenfierForRowAt: indexPath) ?? ""
+        let cellIdentifier = originalTableViewDataSource?.collectionSkeletonView(tableView, cellIdentifierForRowAt: indexPath) ?? ""
         let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath)
+        skeletonViewIfContainerSkeletonIsActive(container: tableView, view: cell)
         return cell
     }
 }
 
 // MARK: - UICollectionViewDataSource
 extension SkeletonCollectionDataSource: UICollectionViewDataSource {
-    
     func numberOfSections(in collectionView: UICollectionView) -> Int {
-        return 1
+        return originalCollectionViewDataSource?.numSections(in: collectionView) ?? 0
     }
     
     func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
-        return 4
+        return originalCollectionViewDataSource?.collectionSkeletonView(collectionView, numberOfItemsInSection: section) ?? 0
     }
     
     func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
-        return UICollectionViewCell()
+        let cellIdentifier = originalCollectionViewDataSource?.collectionSkeletonView(collectionView, cellIdentifierForItemAt: indexPath) ?? ""
+        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellIdentifier, for: indexPath)
+        skeletonViewIfContainerSkeletonIsActive(container: collectionView, view: cell)
+        return cell
+    }
+    
+    func collectionView(_ collectionView: UICollectionView,
+                        viewForSupplementaryElementOfKind kind: String,
+                        at indexPath: IndexPath) -> UICollectionReusableView {
+        
+        if let viewIdentifier = originalCollectionViewDataSource?.collectionSkeletonView(collectionView, supplementaryViewIdentifierOfKind: kind, at: indexPath) {
+            let view =  collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: viewIdentifier, for: indexPath)
+            skeletonViewIfContainerSkeletonIsActive(container: collectionView, view: view)
+            return view
+        }
+        
+        return UICollectionReusableView()
+    }
+    
+}
+
+extension SkeletonCollectionDataSource {
+    private func skeletonViewIfContainerSkeletonIsActive(container: UIView, view: UIView) {
+        guard container.isSkeletonActive,
+              let skeletonConfig = container.currentSkeletonConfig else {
+            return
+        }
+
+        view.showSkeleton(skeletonConfig: skeletonConfig)
     }
 }

Sources/Collections/SkeletonCollectionDelegate.swift

@@ -0,0 +1,73 @@
+//
+//  SkeletonCollectionDelegate.swift
+//  SkeletonView-iOS
+//
+//  Created by Juanpe Catalán on 30/03/2018.
+//  Copyright © 2018 SkeletonView. All rights reserved.
+//
+
+import UIKit
+
+class SkeletonCollectionDelegate: NSObject {
+    weak var originalTableViewDelegate: SkeletonTableViewDelegate?
+    weak var originalCollectionViewDelegate: SkeletonCollectionViewDelegate?
+    
+    init(tableViewDelegate: SkeletonTableViewDelegate? = nil, collectionViewDelegate: SkeletonCollectionViewDelegate? = nil) {
+        self.originalTableViewDelegate = tableViewDelegate
+        self.originalCollectionViewDelegate = collectionViewDelegate
+    }
+}
+
+// MARK: - UITableViewDelegate
+extension SkeletonCollectionDelegate: UITableViewDelegate {
+    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
+        if let viewIdentifier = originalTableViewDelegate?.collectionSkeletonView(tableView, identifierForHeaderInSection: section),
+            let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: viewIdentifier) {
+
+            skeletonViewIfContainerSkeletonIsActive(container: tableView, view: header)
+            return header
+        }
+
+        return nil
+    }
+
+    func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
+        if let viewIdentifier = originalTableViewDelegate?.collectionSkeletonView(tableView, identifierForFooterInSection: section),
+            let footer = tableView.dequeueReusableHeaderFooterView(withIdentifier: viewIdentifier) {
+
+            skeletonViewIfContainerSkeletonIsActive(container: tableView, view: footer)
+            return footer
+        }
+
+        return nil
+    }
+
+    func tableView(_ tableView: UITableView, didEndDisplayingHeaderView view: UIView, forSection section: Int) {
+        view.hideSkeleton()
+        originalTableViewDelegate?.tableView?(tableView, didEndDisplayingHeaderView: view, forSection: section)
+    }
+    
+    func tableView(_ tableView: UITableView, didEndDisplayingFooterView view: UIView, forSection section: Int) {
+        view.hideSkeleton()
+        originalTableViewDelegate?.tableView?(tableView, didEndDisplayingFooterView: view, forSection: section)
+    }
+    
+    func tableView(_ tableView: UITableView, didEndDisplaying cell: UITableViewCell, forRowAt indexPath: IndexPath) {
+        cell.hideSkeleton()
+        originalTableViewDelegate?.tableView?(tableView, didEndDisplaying: cell, forRowAt: indexPath)
+    }
+}
+
+// MARK: - UICollectionViewDelegate
+extension SkeletonCollectionDelegate: UICollectionViewDelegate { }
+
+extension SkeletonCollectionDelegate {
+    private func skeletonViewIfContainerSkeletonIsActive(container: UIView, view: UIView) {
+        guard container.isSkeletonActive,
+              let skeletonConfig = container.currentSkeletonConfig else {
+            return
+        }
+
+        view.showSkeleton(skeletonConfig: skeletonConfig)
+    }
+}

Sources/Collections/SkeletonUICollectionViewDataSource.swift

@@ -1,11 +0,0 @@
-//
-//  SkeletonUICollectionViewDataSource.swift
-//  SkeletonView-iOS
-//
-//  Created by Juanpe Catalán on 06/11/2017.
-//  Copyright © 2017 SkeletonView. All rights reserved.
-//
-
-import UIKit
-
-protocol SkeletonUICollectionViewDataSource: UICollectionViewDataSource {}

Sources/Collections/SkeletonUITableViewDataSource.swift

@@ -1,24 +0,0 @@
-//
-//  SkeletonUITableViewDataSource.swift
-//  SkeletonView-iOS
-//
-//  Created by Juanpe Catalán on 06/11/2017.
-//  Copyright © 2017 SkeletonView. All rights reserved.
-//
-
-import UIKit
-
-public protocol SkeletonTableViewDataSource: UITableViewDataSource {
-    func numSections(in collectionSkeletonView: UITableView) -> Int
-    func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
-    func collectionSkeletonView(_ skeletonView: UITableView, cellIdenfierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
-}
-
-public extension SkeletonTableViewDataSource {
-    
-    func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int {
-        return Int(ceil(skeletonView.frame.height/skeletonView.rowHeight))
-    }
-    
-    func numSections(in collectionSkeletonView: UITableView) -> Int { return 1 }
-}

Sources/Collections/TableViews/SkeletonTableViewProtocols.swift

@@ -0,0 +1,45 @@
+//
+//  SkeletonTableViewProtocols.swift
+//  SkeletonView-iOS
+//
+//  Created by Juanpe Catalán on 06/11/2017.
+//  Copyright © 2017 SkeletonView. All rights reserved.
+//
+
+import UIKit
+
+public protocol SkeletonTableViewDataSource: UITableViewDataSource {
+    func numSections(in collectionSkeletonView: UITableView) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int
+    func collectionSkeletonView(_ skeletonView: UITableView, cellIdentifierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier
+}
+
+public extension SkeletonTableViewDataSource {
+    func collectionSkeletonView(_ skeletonView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return skeletonView.estimatedNumberOfRows
+    }
+    
+    func numSections(in collectionSkeletonView: UITableView) -> Int { return 1 }
+
+    /// Keeping the misspelled version around until it can be deprecated
+    /// Right now, it just calls the new correctly spelled method and returns its result
+    @available(*, deprecated, renamed: "collectionSkeletonView(_:cellIdentifierForRowAt:)")
+    func collectionSkeletonView(_ skeletonView: UITableView, cellIdenfierForRowAt indexPath: IndexPath) -> ReusableCellIdentifier {
+        return collectionSkeletonView(skeletonView, cellIdentifierForRowAt: indexPath)
+    }
+}
+
+public protocol SkeletonTableViewDelegate: UITableViewDelegate {
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForHeaderInSection section: Int) -> ReusableHeaderFooterIdentifier?
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForFooterInSection section: Int) -> ReusableHeaderFooterIdentifier?
+}
+
+public extension SkeletonTableViewDelegate {
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForHeaderInSection section: Int) -> ReusableHeaderFooterIdentifier? {
+        return nil
+    }
+
+    func collectionSkeletonView(_ skeletonView: UITableView, identifierForFooterInSection section: Int) -> ReusableHeaderFooterIdentifier? {
+        return nil
+    }
+}

Sources/Collections/TableViews/UITableView+CollectionSkeleton.swift

@@ -0,0 +1,86 @@
+//
+//  UITableView+CollectionSkeleton.swift
+//  SkeletonView-iOS
+//
+//  Created by Juanpe Catalán on 02/02/2018.
+//  Copyright © 2018 SkeletonView. All rights reserved.
+//
+
+import UIKit
+
+public typealias ReusableHeaderFooterIdentifier = String
+
+extension UITableView: CollectionSkeleton {
+    var estimatedNumberOfRows: Int {
+        return Int(ceil(frame.height/rowHeight))
+    }
+    
+    var skeletonDataSource: SkeletonCollectionDataSource? {
+        get { return ao_get(pkey: &CollectionAssociatedKeys.dummyDataSource) as? SkeletonCollectionDataSource }
+        set {
+            ao_setOptional(newValue, pkey: &CollectionAssociatedKeys.dummyDataSource)
+            self.dataSource = newValue
+        }
+    }
+    
+    var skeletonDelegate: SkeletonCollectionDelegate? {
+        get { return ao_get(pkey: &CollectionAssociatedKeys.dummyDelegate) as? SkeletonCollectionDelegate }
+        set {
+            ao_setOptional(newValue, pkey: &CollectionAssociatedKeys.dummyDelegate)
+            self.delegate = newValue
+        }
+    }
+    
+    func addDummyDataSource() {
+        guard let originalDataSource = self.dataSource as? SkeletonTableViewDataSource,
+            !(originalDataSource is SkeletonCollectionDataSource)
+            else { return }
+        let calculatedRowHeight = calculateRowHeight()
+        let dataSource = SkeletonCollectionDataSource(tableViewDataSource: originalDataSource,
+                                                      rowHeight: rowHeight,
+                                                      originalRowHeight: self.rowHeight)
+        rowHeight = calculatedRowHeight
+        self.skeletonDataSource = dataSource
+
+        if let originalDelegate = self.delegate as? SkeletonTableViewDelegate,
+            !(originalDelegate is SkeletonCollectionDelegate)
+        {
+            let delegate = SkeletonCollectionDelegate(tableViewDelegate: originalDelegate)
+            self.skeletonDelegate = delegate
+        }
+
+        reloadData()
+    }
+    
+    func updateDummyDataSource() {
+        if (dataSource as? SkeletonCollectionDataSource) != nil {
+            reloadData()
+        } else {
+            addDummyDataSource()
+        }
+    }
+    
+    func removeDummyDataSource(reloadAfter: Bool) {
+        guard let dataSource = self.dataSource as? SkeletonCollectionDataSource else { return }
+        restoreRowHeight()
+        self.skeletonDataSource = nil
+        self.dataSource = dataSource.originalTableViewDataSource
+
+        if let delegate = self.delegate as? SkeletonCollectionDelegate {
+            self.skeletonDelegate = nil
+            self.delegate = delegate.originalTableViewDelegate
+        }
+
+        if reloadAfter { self.reloadData() }
+    }
+
+    private func restoreRowHeight() {
+        guard let dataSource = self.dataSource as? SkeletonCollectionDataSource else { return }
+        rowHeight = dataSource.originalRowHeight
+    }
+    
+    private func calculateRowHeight() -> CGFloat {
+        guard rowHeight == UITableView.automaticDimension else { return rowHeight }
+        return estimatedRowHeight
+    }
+}

Sources/Collections/UIView+CollectionSkeleton.swift

@@ -0,0 +1,33 @@
+//
+//  UIView+CollectionSkeleton.swift
+//  SkeletonView-iOS
+//
+//  Created by Juanpe Catalán on 02/02/2018.
+//  Copyright © 2018 SkeletonView. All rights reserved.
+//
+
+import UIKit
+
+extension UIView {
+    func addDummyDataSourceIfNeeded() {
+        guard let collection = self as? CollectionSkeleton,
+            !ProcessInfo.isRunningXCTest else { return }
+        status = .on
+        collection.addDummyDataSource()
+        collection.disableUserInteraction()
+    }
+    
+    func updateDummyDataSourceIfNeeded() {
+        guard let collection = self as? CollectionSkeleton,
+            !ProcessInfo.isRunningXCTest else { return }
+        collection.updateDummyDataSource()
+    }
+    
+    func removeDummyDataSourceIfNeeded(reloadAfter reload: Bool = true) {
+        guard let collection = self as? CollectionSkeleton,
+            !ProcessInfo.isRunningXCTest else { return }
+        status = .off
+        collection.removeDummyDataSource(reloadAfter: reload)
+        collection.enableUserInteraction()
+    }
+}

Sources/Debug/SkeletonDebug.swift

@@ -0,0 +1,49 @@
+
+// Copyright © 2018 SkeletonView. All rights reserved.
+
+import Foundation
+import UIKit
+
+enum SkeletonEnvironmentKey: String {
+    case debugMode = "SKELETON_DEBUG"
+}
+
+extension Dictionary {
+    subscript (_ key: SkeletonEnvironmentKey) -> Value? {
+        return self[key.rawValue as! Key]
+    }
+}
+
+func printSkeletonHierarchy(in view: UIView) {
+    skeletonLog(view.skeletonHierarchy())
+}
+
+func skeletonLog(_ message: String) {
+    if let _ = ProcessInfo.processInfo.environment[.debugMode] {
+        print(message)
+    }
+}
+
+extension UIView {
+    public var skeletonDescription: String {
+        var description = "<\(type(of: self)): \(Unmanaged.passUnretained(self).toOpaque())"
+        let subSkeletons = subviewsSkeletonables
+        if subSkeletons.count != 0 {
+            description += " | (\(subSkeletons.count)) subSkeletons"
+        }
+        if isSkeletonable {
+            description += " | ☠️ "
+        }
+        return description + ">"
+    }
+
+    public func skeletonHierarchy(index: Int = 0) -> String {
+        var description = index == 0 ? "\n ⬇⬇ ☠️ Root view hierarchy with Skeletons ⬇⬇ \n" : ""
+        description += "\(index == 0 ? "\n" : 3.whitespaces) \(skeletonDescription) \n"
+        subviewsToSkeleton.forEach {
+            description += (index + 2).whitespaces
+            description += $0.skeletonHierarchy(index: index + 1)
+        }
+        return description
+    }
+}

Sources/Extensions/CALayer+Extensions.swift

@@ -10,97 +10,169 @@ import UIKit
 
 extension CALayer {
     @objc func tint(withColors colors: [UIColor]) {
-        recursiveSearch(inArray: skeletonSublayers,
-                        leafBlock: { backgroundColor = colors.first?.cgColor }) {
-                            $0.tint(withColors: colors)
+        skeletonSublayers.recursiveSearch(leafBlock: {
+            backgroundColor = colors.first?.cgColor
+        }) {
+            $0.tint(withColors: colors)
         }
     }
 }
 
 extension CAGradientLayer {
     override func tint(withColors colors: [UIColor]) {
-        recursiveSearch(inArray: skeletonSublayers,
-                        leafBlock: { self.colors = colors.map { $0.cgColor } }) {
-                            $0.tint(withColors: colors)
+        skeletonSublayers.recursiveSearch(leafBlock: {
+            self.colors = colors.map { $0.cgColor }
+        }) {
+            $0.tint(withColors: colors)
         }
     }
 }
 
+struct SkeletonMultilinesLayerConfig {
+	var lines: Int
+	var lineHeight: CGFloat? = nil
+	var type: SkeletonType
+	var lastLineFillPercent: Int
+	var multilineCornerRadius: Int
+	var multilineSpacing: CGFloat
+	var paddingInsets: UIEdgeInsets
+}
+
 
 // MARK: Skeleton sublayers
 extension CALayer {
-    
     static let skeletonSubLayersName = "SkeletonSubLayersName"
 
     var skeletonSublayers: [CALayer] {
         return sublayers?.filter { $0.name == CALayer.skeletonSubLayersName } ?? [CALayer]()
     }
     
-    func addMultilinesLayers(lines: Int, type: SkeletonType, lastLineFillPercent: Int) {
-        let numberOfSublayers = calculateNumLines(maxLines: lines)
-        for index in 0..<numberOfSublayers {
-            var width = bounds.width
-            
-            if index == numberOfSublayers-1 && numberOfSublayers != 1 {
-                width = width * CGFloat(lastLineFillPercent)/100;
+	func addMultilinesLayers(for config: SkeletonMultilinesLayerConfig) {
+        let numberOfSublayers = config.lines == 1 ? 1 : calculateNumLines(for: config)
+        var height = config.lineHeight ?? SkeletonAppearance.default.multilineHeight
+        if numberOfSublayers == 1 {
+            height = bounds.height
+        }
+
+        let layerBuilder = SkeletonMultilineLayerBuilder()
+			.setSkeletonType(config.type)
+			.setCornerRadius(config.multilineCornerRadius)
+			.setMultilineSpacing(config.multilineSpacing)
+            .setPadding(config.paddingInsets)
+            .setHeight(height)
+    
+        (0..<numberOfSublayers).forEach { index in
+			let width = calculatedWidthForLine(at: index, totalLines: numberOfSublayers, lastLineFillPercent: config.lastLineFillPercent, paddingInsets: config.paddingInsets)
+            if let layer = layerBuilder
+                .setIndex(index)
+                .setWidth(width)
+                .build() {
+                addSublayer(layer)
             }
-            
-            let layer = SkeletonLayerFactory().makeMultilineLayer(withType: type, for: index, width: width)
-            addSublayer(layer)
         }
     }
-    
-    private func calculateNumLines(maxLines: Int) -> Int {
-        let spaceRequitedForEachLine = SkeletonDefaultConfig.multilineHeight + SkeletonDefaultConfig.multilineSpacing
-        var numberOfSublayers = Int(round(CGFloat(bounds.height)/CGFloat(spaceRequitedForEachLine)))
-        if maxLines != 0,  maxLines <= numberOfSublayers { numberOfSublayers = maxLines }
+
+    func updateMultilinesLayers(for config: SkeletonMultilinesLayerConfig) {
+        let currentSkeletonSublayers = skeletonSublayers
+        let numberOfSublayers = currentSkeletonSublayers.count
+        let lastLineFillPercent = config.lastLineFillPercent
+        let paddingInsets = config.paddingInsets
+        let multilineSpacing = config.multilineSpacing
+        var height = config.lineHeight ?? SkeletonAppearance.default.multilineHeight
+        if numberOfSublayers == 1 {
+            height = bounds.height
+        }
+        
+        for (index, layer) in currentSkeletonSublayers.enumerated() {
+            let width = calculatedWidthForLine(at: index, totalLines: numberOfSublayers, lastLineFillPercent: lastLineFillPercent, paddingInsets: paddingInsets)
+            layer.updateLayerFrame(for: index, size: CGSize(width: width, height: height), multilineSpacing: multilineSpacing, paddingInsets: paddingInsets)
+        }
+    }
+
+    private func calculatedWidthForLine(at index: Int, totalLines: Int, lastLineFillPercent: Int, paddingInsets: UIEdgeInsets) -> CGFloat {
+        var width = bounds.width - paddingInsets.left - paddingInsets.right
+        if index == totalLines - 1 && totalLines != 1 {
+            width = width * CGFloat(lastLineFillPercent) / 100
+        }
+        return width
+    }
+
+    func updateLayerFrame(for index: Int, size: CGSize, multilineSpacing: CGFloat, paddingInsets: UIEdgeInsets) {
+        let spaceRequiredForEachLine = SkeletonAppearance.default.multilineHeight + multilineSpacing
+        frame = CGRect(x: paddingInsets.left, y: CGFloat(index) * spaceRequiredForEachLine + paddingInsets.top, width: size.width, height: size.height)
+    }
+
+	private func calculateNumLines(for config: SkeletonMultilinesLayerConfig) -> Int {
+		let requiredSpaceForEachLine = (config.lineHeight ?? SkeletonAppearance.default.multilineHeight) + config.multilineSpacing
+		var numberOfSublayers = Int(round(CGFloat(bounds.height - config.paddingInsets.top - config.paddingInsets.bottom)/CGFloat(requiredSpaceForEachLine)))
+		if config.lines != 0,  config.lines <= numberOfSublayers { numberOfSublayers = config.lines }
         return numberOfSublayers
     }
 }
 
 // MARK: Animations
 public extension CALayer {
-
     var pulse: CAAnimation {
         let pulseAnimation = CABasicAnimation(keyPath: #keyPath(CALayer.backgroundColor))
         pulseAnimation.fromValue = backgroundColor
         pulseAnimation.toValue = UIColor(cgColor: backgroundColor!).complementaryColor.cgColor
         pulseAnimation.duration = 1
-        pulseAnimation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
+        pulseAnimation.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeInEaseOut)
         pulseAnimation.autoreverses = true
         pulseAnimation.repeatCount = .infinity
+        pulseAnimation.isRemovedOnCompletion = false
         return pulseAnimation
     }
     
     var sliding: CAAnimation {
         let startPointAnim = CABasicAnimation(keyPath: #keyPath(CAGradientLayer.startPoint))
-        startPointAnim.fromValue = NSValue(cgPoint:CGPoint(x: -1, y: 0.5))
-        startPointAnim.toValue = NSValue(cgPoint:CGPoint(x:1, y: 0.5))
+        startPointAnim.fromValue = CGPoint(x: -1, y: 0.5)
+        startPointAnim.toValue = CGPoint(x:1, y: 0.5)
         
         let endPointAnim = CABasicAnimation(keyPath: #keyPath(CAGradientLayer.endPoint))
-        endPointAnim.fromValue = NSValue(cgPoint:CGPoint(x: 0, y: 0.5))
-        endPointAnim.toValue = NSValue(cgPoint:CGPoint(x:2, y: 0.5))
+        endPointAnim.fromValue = CGPoint(x: 0, y: 0.5)
+        endPointAnim.toValue = CGPoint(x:2, y: 0.5)
         
         let animGroup = CAAnimationGroup()
         animGroup.animations = [startPointAnim, endPointAnim]
         animGroup.duration = 1.5
-        animGroup.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseIn)
+        animGroup.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeIn)
         animGroup.repeatCount = .infinity
+        animGroup.isRemovedOnCompletion = false
         
         return animGroup
     }
     
-    func playAnimation(_ anim: SkeletonLayerAnimation, key: String) {
-        recursiveSearch(inArray: skeletonSublayers,
-                        leafBlock: { add(anim(self), forKey: key) }) {
-                            $0.playAnimation(anim, key: key)
+    func playAnimation(_ anim: SkeletonLayerAnimation, key: String, completion: (() -> Void)? = nil) {
+        skeletonSublayers.recursiveSearch(leafBlock: {
+            DispatchQueue.main.async { CATransaction.begin() }
+            DispatchQueue.main.async { CATransaction.setCompletionBlock(completion) }
+            add(anim(self), forKey: key)
+            DispatchQueue.main.async { CATransaction.commit() }
+        }) {
+            $0.playAnimation(anim, key: key, completion: completion)
         }
     }
     
     func stopAnimation(forKey key: String) {
-        recursiveSearch(inArray: skeletonSublayers,
-                        leafBlock: { removeAnimation(forKey: key) }) {
-                            $0.stopAnimation(forKey: key)
+        skeletonSublayers.recursiveSearch(leafBlock: {
+            removeAnimation(forKey: key)
+        }) {
+            $0.stopAnimation(forKey: key)
         }
     }
 }
+
+extension CALayer {
+    func setOpacity(from: Int, to: Int, duration: TimeInterval, completion: (() -> Void)?) {
+        DispatchQueue.main.async { CATransaction.begin() }
+        let animation = CABasicAnimation(keyPath: #keyPath(CALayer.opacity))
+        animation.fromValue = from
+        animation.toValue = to
+        animation.duration = duration
+        animation.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeInEaseOut)
+        DispatchQueue.main.async { CATransaction.setCompletionBlock(completion) }
+        add(animation, forKey: "setOpacityAnimation")
+        DispatchQueue.main.async { CATransaction.commit() }
+    }
+}