Fixes #5

This reverts commit 20d7be5ca0.

.travis.yml

@@ -0,0 +1,6 @@
+osx_image: xcode7.2
+language: objective-c
+
+xcode_project: FoldingCell/FoldingCell.xcodeproj
+xcode_scheme: FoldingCell
+xcode_sdk: iphonesimulator

CONTRIBUTING.md

@@ -0,0 +1,33 @@
+# Contributing to a Project
+Now that you’ve found the material for understanding the project, here is how you can take action.
+
+### Create an Issue
+
+If you find a bug in a project you’re using (and you don’t know how to fix it), have trouble following the documentation or have a question about the project – create an issue! There’s nothing to it and whatever issue you’re having, you’re likely not the only one, so others will find your issue helpful, too. For more information on how issues work, check out our Issues guide.
+
+#### Issues Pro Tips
+
+Check existing issues for your issue. Duplicating an issue is slower for both parties so search through open and closed issues to see if what you’re running into has been addressed already.
+Be clear about what your problem is: what was the expected outcome, what happened instead? Detail how someone else can recreate the problem.
+Link to demos recreating the problem on things like JSFiddle or CodePen.
+Include system details like what the browser, library or operating system you’re using and its version.
+Paste error output or logs in your issue or in a Gist. If pasting them in the issue, wrap it in three backticks: ``` so that it renders nicely.
+
+### Pull Request
+
+If you’re able to patch the bug or add the feature yourself – fantastic, make a pull request with the code! Be sure you’ve read any documents on contributing, understand the license and have signed a CLA if required. Once you’ve submitted a pull request the maintainer(s) can compare your branch to the existing one and decide whether or not to incorporate (pull in) your changes.
+
+#### Pull Request Pro Tips
+
+Fork the repository and clone it locally. Connect your local to the original ‘upstream’ repository by adding it as a remote. Pull in changes from ‘upstream’ often so that you stay up to date so that when you submit your pull request, merge conflicts will be less likely. See more detailed instructions here.
+Create a branch for your edits.
+Be clear about what problem is occurring and how someone can recreate that problem or why your feature will help. Then be equally as clear about the steps you took to make your changes.
+It’s best to test. Run your changes against any existing tests if they exist and create new ones when needed. Whether tests exist or not, make sure your changes don’t break the existing project.
+Include screenshots of the before and after if your changes include differences in HTML/CSS. Drag and drop the images into the body of your pull request.
+Contribute in the style of the project to the best of your abilities. This may mean using indents, semi colons or comments differently than you would in your own repository, but makes it easier for the maintainer to merge, others to understand and maintain in the future.
+
+#### Open Pull Requests
+
+Once you’ve opened a pull request a discussion will start around your proposed changes. Other contributors and users may chime in, but ultimately the decision is made by the maintainer(s). You may be asked to make some changes to your pull request, if so, add more commits to your branch and push them – they’ll automatically go into the existing pull request.
+
+If your pull request is merged – great! If it is not, no sweat, it may not be what the project maintainer had in mind, or they were already working on it. This happens, so our recommendation is to take any feedback you’ve received and go forth and pull request again – or create your own open source project.

FoldingCell.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = 'FoldingCell'
-  s.version      = '0.2'
+  s.version      = '0.5'
   s.summary      = 'UITableViewCell with folding animation.'
   s.homepage     = 'https://github.com/Ramotion/folding-cell'
   s.license      = 'MIT'

FoldingCell/FoldingCell.xcodeproj/project.pbxproj

@@ -13,6 +13,8 @@
 		847A58121C294F750028FB84 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 847A58101C294F750028FB84 /* LaunchScreen.storyboard */; };
 		847A581B1C294FAB0028FB84 /* FoldingCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 847A581A1C294FAB0028FB84 /* FoldingCell.swift */; };
 		847A581F1C29500B0028FB84 /* MainTableViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 847A581E1C29500B0028FB84 /* MainTableViewController.swift */; };
+		848B463B1C56458C00D49B45 /* FoldingCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 847A581A1C294FAB0028FB84 /* FoldingCell.swift */; };
+		8498513F1C5639F9006FA400 /* FoldingCellTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8498513E1C5639F9006FA400 /* FoldingCellTests.swift */; };
 		8499F5DD1C2A83F70027D5D2 /* OpenSans-Bold.ttf in Resources */ = {isa = PBXBuildFile; fileRef = 8499F5D31C2A83F70027D5D2 /* OpenSans-Bold.ttf */; };
 		8499F5DE1C2A83F70027D5D2 /* OpenSans-BoldItalic.ttf in Resources */ = {isa = PBXBuildFile; fileRef = 8499F5D41C2A83F70027D5D2 /* OpenSans-BoldItalic.ttf */; };
 		8499F5DF1C2A83F70027D5D2 /* OpenSans-ExtraBold.ttf in Resources */ = {isa = PBXBuildFile; fileRef = 8499F5D51C2A83F70027D5D2 /* OpenSans-ExtraBold.ttf */; };
@@ -26,6 +28,16 @@
 		84CDB15A1C2D416400FCD7C8 /* DemoCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84CDB1591C2D416400FCD7C8 /* DemoCell.swift */; };
 /* End PBXBuildFile section */
 
+/* Begin PBXContainerItemProxy section */
+		849851411C5639F9006FA400 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 847A57FC1C294F750028FB84 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 847A58031C294F750028FB84;
+			remoteInfo = FoldingCell;
+		};
+/* End PBXContainerItemProxy section */
+
 /* Begin PBXCopyFilesBuildPhase section */
 		840B98551C33FE660081B926 /* Embed Frameworks */ = {
 			isa = PBXCopyFilesBuildPhase;
@@ -50,6 +62,9 @@
 		847A58131C294F750028FB84 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		847A581A1C294FAB0028FB84 /* FoldingCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FoldingCell.swift; sourceTree = "<group>"; };
 		847A581E1C29500B0028FB84 /* MainTableViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MainTableViewController.swift; sourceTree = "<group>"; };
+		8498513C1C5639F9006FA400 /* FoldingCellTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = FoldingCellTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		8498513E1C5639F9006FA400 /* FoldingCellTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FoldingCellTests.swift; sourceTree = "<group>"; };
+		849851401C5639F9006FA400 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		8499F5D31C2A83F70027D5D2 /* OpenSans-Bold.ttf */ = {isa = PBXFileReference; lastKnownFileType = file; path = "OpenSans-Bold.ttf"; sourceTree = "<group>"; };
 		8499F5D41C2A83F70027D5D2 /* OpenSans-BoldItalic.ttf */ = {isa = PBXFileReference; lastKnownFileType = file; path = "OpenSans-BoldItalic.ttf"; sourceTree = "<group>"; };
 		8499F5D51C2A83F70027D5D2 /* OpenSans-ExtraBold.ttf */ = {isa = PBXFileReference; lastKnownFileType = file; path = "OpenSans-ExtraBold.ttf"; sourceTree = "<group>"; };
@@ -71,6 +86,13 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		849851391C5639F9006FA400 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
@@ -88,6 +110,7 @@
 			children = (
 				847A58061C294F750028FB84 /* FoldingCell */,
 				840B984A1C33FE660081B926 /* FoldingCellFramework */,
+				8498513D1C5639F9006FA400 /* FoldingCellTests */,
 				847A58051C294F750028FB84 /* Products */,
 			);
 			sourceTree = "<group>";
@@ -96,6 +119,7 @@
 			isa = PBXGroup;
 			children = (
 				847A58041C294F750028FB84 /* FoldingCell.app */,
+				8498513C1C5639F9006FA400 /* FoldingCellTests.xctest */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -124,6 +148,15 @@
 			path = FoldingCell;
 			sourceTree = "<group>";
 		};
+		8498513D1C5639F9006FA400 /* FoldingCellTests */ = {
+			isa = PBXGroup;
+			children = (
+				8498513E1C5639F9006FA400 /* FoldingCellTests.swift */,
+				849851401C5639F9006FA400 /* Info.plist */,
+			);
+			path = FoldingCellTests;
+			sourceTree = "<group>";
+		};
 		8499F5D21C2A83D90027D5D2 /* Fonts */ = {
 			isa = PBXGroup;
 			children = (
@@ -162,6 +195,24 @@
 			productReference = 847A58041C294F750028FB84 /* FoldingCell.app */;
 			productType = "com.apple.product-type.application";
 		};
+		8498513B1C5639F9006FA400 /* FoldingCellTests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 849851431C5639F9006FA400 /* Build configuration list for PBXNativeTarget "FoldingCellTests" */;
+			buildPhases = (
+				849851381C5639F9006FA400 /* Sources */,
+				849851391C5639F9006FA400 /* Frameworks */,
+				8498513A1C5639F9006FA400 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				849851421C5639F9006FA400 /* PBXTargetDependency */,
+			);
+			name = FoldingCellTests;
+			productName = FoldingCellTests;
+			productReference = 8498513C1C5639F9006FA400 /* FoldingCellTests.xctest */;
+			productType = "com.apple.product-type.bundle.unit-test";
+		};
 /* End PBXNativeTarget section */
 
 /* Begin PBXProject section */
@@ -174,6 +225,11 @@
 				TargetAttributes = {
 					847A58031C294F750028FB84 = {
 						CreatedOnToolsVersion = 7.2;
+						DevelopmentTeam = 34MUF9YXTA;
+					};
+					8498513B1C5639F9006FA400 = {
+						CreatedOnToolsVersion = 7.2;
+						TestTargetID = 847A58031C294F750028FB84;
 					};
 				};
 			};
@@ -191,6 +247,7 @@
 			projectRoot = "";
 			targets = (
 				847A58031C294F750028FB84 /* FoldingCell */,
+				8498513B1C5639F9006FA400 /* FoldingCellTests */,
 			);
 		};
 /* End PBXProject section */
@@ -216,6 +273,13 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		8498513A1C5639F9006FA400 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
@@ -230,8 +294,25 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		849851381C5639F9006FA400 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				8498513F1C5639F9006FA400 /* FoldingCellTests.swift in Sources */,
+				848B463B1C56458C00D49B45 /* FoldingCell.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXSourcesBuildPhase section */
 
+/* Begin PBXTargetDependency section */
+		849851421C5639F9006FA400 /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 847A58031C294F750028FB84 /* FoldingCell */;
+			targetProxy = 849851411C5639F9006FA400 /* PBXContainerItemProxy */;
+		};
+/* End PBXTargetDependency section */
+
 /* Begin PBXVariantGroup section */
 		847A580B1C294F750028FB84 /* Main.storyboard */ = {
 			isa = PBXVariantGroup;
@@ -337,6 +418,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				EMBEDDED_CONTENT_CONTAINS_SWIFT = YES;
 				INFOPLIST_FILE = FoldingCell/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
@@ -350,6 +432,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				EMBEDDED_CONTENT_CONTAINS_SWIFT = YES;
 				INFOPLIST_FILE = FoldingCell/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
@@ -359,6 +442,32 @@
 			};
 			name = Release;
 		};
+		849851441C5639F9006FA400 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				DEFINES_MODULE = YES;
+				INFOPLIST_FILE = FoldingCellTests/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = com.ramotion.FoldingCellTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/FoldingCell.app/FoldingCell";
+			};
+			name = Debug;
+		};
+		849851451C5639F9006FA400 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				DEFINES_MODULE = YES;
+				INFOPLIST_FILE = FoldingCellTests/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = com.ramotion.FoldingCellTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/FoldingCell.app/FoldingCell";
+			};
+			name = Release;
+		};
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
@@ -380,6 +489,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		849851431C5639F9006FA400 /* Build configuration list for PBXNativeTarget "FoldingCellTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				849851441C5639F9006FA400 /* Debug */,
+				849851451C5639F9006FA400 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 /* End XCConfigurationList section */
 	};
 	rootObject = 847A57FC1C294F750028FB84 /* Project object */;

FoldingCell/FoldingCell.xcodeproj/project.xcworkspace/xcshareddata/xcschemes/FoldingCell.xcscheme

@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0720"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "847A58031C294F750028FB84"
+               BuildableName = "FoldingCell.app"
+               BlueprintName = "FoldingCell"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "8498513B1C5639F9006FA400"
+               BuildableName = "FoldingCellTests.xctest"
+               BlueprintName = "FoldingCellTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+            <LocationScenarioReference
+               identifier = "com.apple.dt.IDEFoundation.CurrentLocationScenarioIdentifier"
+               referenceType = "1">
+            </LocationScenarioReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "847A58031C294F750028FB84"
+            BuildableName = "FoldingCell.app"
+            BlueprintName = "FoldingCell"
+            ReferencedContainer = "container:">
+         </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 = "847A58031C294F750028FB84"
+            BuildableName = "FoldingCell.app"
+            BlueprintName = "FoldingCell"
+            ReferencedContainer = "container:">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "847A58031C294F750028FB84"
+            BuildableName = "FoldingCell.app"
+            BlueprintName = "FoldingCell"
+            ReferencedContainer = "container:">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

FoldingCell/FoldingCell.xcodeproj/xcshareddata/xcschemes/FoldingCell.xcscheme

@@ -14,9 +14,9 @@
             buildForAnalyzing = "YES">
             <BuildableReference
                BuildableIdentifier = "primary"
-               BlueprintIdentifier = "840B98481C33FE660081B926"
-               BuildableName = "FoldingCellFramework.framework"
-               BlueprintName = "FoldingCellFramework"
+               BlueprintIdentifier = "847A58031C294F750028FB84"
+               BuildableName = "FoldingCell.app"
+               BlueprintName = "FoldingCell"
                ReferencedContainer = "container:FoldingCell.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
@@ -28,7 +28,26 @@
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "8498513B1C5639F9006FA400"
+               BuildableName = "FoldingCellTests.xctest"
+               BlueprintName = "FoldingCellTests"
+               ReferencedContainer = "container:FoldingCell.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
       </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "847A58031C294F750028FB84"
+            BuildableName = "FoldingCell.app"
+            BlueprintName = "FoldingCell"
+            ReferencedContainer = "container:FoldingCell.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
       <AdditionalOptions>
       </AdditionalOptions>
    </TestAction>
@@ -42,15 +61,16 @@
       debugDocumentVersioning = "YES"
       debugServiceExtension = "internal"
       allowLocationSimulation = "YES">
-      <MacroExpansion>
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
          <BuildableReference
             BuildableIdentifier = "primary"
-            BlueprintIdentifier = "840B98481C33FE660081B926"
-            BuildableName = "FoldingCellFramework.framework"
-            BlueprintName = "FoldingCellFramework"
+            BlueprintIdentifier = "847A58031C294F750028FB84"
+            BuildableName = "FoldingCell.app"
+            BlueprintName = "FoldingCell"
             ReferencedContainer = "container:FoldingCell.xcodeproj">
          </BuildableReference>
-      </MacroExpansion>
+      </BuildableProductRunnable>
       <AdditionalOptions>
       </AdditionalOptions>
    </LaunchAction>
@@ -60,15 +80,16 @@
       savedToolIdentifier = ""
       useCustomWorkingDirectory = "NO"
       debugDocumentVersioning = "YES">
-      <MacroExpansion>
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
          <BuildableReference
             BuildableIdentifier = "primary"
-            BlueprintIdentifier = "840B98481C33FE660081B926"
-            BuildableName = "FoldingCellFramework.framework"
-            BlueprintName = "FoldingCellFramework"
+            BlueprintIdentifier = "847A58031C294F750028FB84"
+            BuildableName = "FoldingCell.app"
+            BlueprintName = "FoldingCell"
             ReferencedContainer = "container:FoldingCell.xcodeproj">
          </BuildableReference>
-      </MacroExpansion>
+      </BuildableProductRunnable>
    </ProfileAction>
    <AnalyzeAction
       buildConfiguration = "Debug">

FoldingCell/FoldingCell/Base.lproj/Main.storyboard

@@ -50,7 +50,7 @@
         <!--Main Table View Controller-->
         <scene sceneID="Q2d-BE-geS">
             <objects>
-                <tableViewController id="0cn-rv-Emg" customClass="MainTableViewController" customModule="FoldingCell" customModuleProvider="target" sceneMemberID="viewController">
+                <tableViewController storyboardIdentifier="MainTableViewController" id="0cn-rv-Emg" customClass="MainTableViewController" customModule="FoldingCell" customModuleProvider="target" sceneMemberID="viewController">
                     <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" showsHorizontalScrollIndicator="NO" showsVerticalScrollIndicator="NO" dataMode="prototypes" style="plain" separatorStyle="none" showsSelectionImmediatelyOnTouchBegin="NO" rowHeight="667" sectionHeaderHeight="28" sectionFooterHeight="28" id="MwZ-K3-six">
                         <rect key="frame" x="0.0" y="0.0" width="600" height="695"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>

FoldingCell/FoldingCell/FoldingCell/FoldingCell.swift

@@ -27,8 +27,8 @@ public class FoldingCell: UITableViewCell {
     
     public typealias CompletionHandler = () -> Void
 
-    @IBOutlet weak var containerView: UIView!
-    @IBOutlet weak var foregroundView: RotatedView!
+    @IBOutlet weak public var containerView: UIView!
+    @IBOutlet weak public var foregroundView: RotatedView!
     var animationView: UIView?
     
     @IBInspectable var itemCount: NSInteger = 2 //count of folding  
@@ -61,14 +61,18 @@ public class FoldingCell: UITableViewCell {
         let foregroundTopConstraint = self.contentView.constraints.filter{ $0.identifier == "ForegroundViewTop"}.first
         let containerViewTopConstraint = self.contentView.constraints.filter{ $0.identifier == "ContainerViewTop"}.first
         
-        assert(foregroundTopConstraint != nil, "set identifier")
-        assert(containerViewTopConstraint != nil, "set identifier")
+        guard let foregroundConstraint = foregroundTopConstraint else {
+            fatalError("set identifier")
+        }
+        guard let containerConstraint = containerViewTopConstraint else {
+            fatalError("set identifier")
+        }
         
-        containerViewTopConstraint!.constant = foregroundTopConstraint!.constant
+        containerConstraint.constant = foregroundConstraint.constant
         containerView.alpha = 0;
         
         foregroundView.layer.anchorPoint = CGPoint.init(x: 0.5, y: 1)
-        foregroundTopConstraint!.constant += foregroundView.bounds.height / 2
+        foregroundConstraint.constant += foregroundView.bounds.height / 2
         foregroundView.layer.transform = foregroundView.transform3d()
         
         createAnimationView();
@@ -76,13 +80,17 @@ public class FoldingCell: UITableViewCell {
     }
     
     func createAnimationItemView()->[RotatedView] {
+        guard let animationView = self.animationView else {
+            fatalError()
+        }
+        
         var items = [RotatedView]()
         items.append(foregroundView)
         var rotatedViews = [RotatedView]()
-        for itemView in animationView!.subviews.filter({$0 is RotatedView}).sort({ $0.tag < $1.tag }) as! [RotatedView] {
+        for case let itemView as RotatedView in animationView.subviews.filter({$0 is RotatedView}).sort({ $0.tag < $1.tag }){
             rotatedViews.append(itemView)
-            if itemView.backView != nil {
-                rotatedViews.append(itemView.backView!)
+            if let backView = itemView.backView {
+                rotatedViews.append(backView)
             }
         }
         items.appendContentsOf(rotatedViews)
@@ -90,12 +98,17 @@ public class FoldingCell: UITableViewCell {
     }
     
     func configureAnimationItems(animationType: AnimationType) {
+        
+        guard let animationViewSuperView = animationView?.subviews else {
+            fatalError()
+        }
+        
         if animationType == .Open {
-            for view in animationView!.subviews.filter({$0 is RotatedView}) {
+            for view in animationViewSuperView.filter({$0 is RotatedView}) {
                 view.alpha = 0;
             }
         } else { // close
-            for view: RotatedView in animationView!.subviews.filter({$0 is RotatedView}) as! [RotatedView] {
+            for case let view as RotatedView in animationViewSuperView.filter({$0 is RotatedView}) {
                 if animationType == .Open {
                     view.alpha = 0
                 } else {
@@ -227,14 +240,15 @@ public class FoldingCell: UITableViewCell {
         }
         
         containerView.alpha = 0;
-        
-        // added back view
-        var previusView: RotatedView?
-        for contener in animationView!.subviews.sort({ $0.tag < $1.tag }) {
-            if contener is RotatedView && contener.tag > 0 && contener.tag < animationView!.subviews.count {
-                let rotatedView = contener as! RotatedView
-                previusView?.addBackView(rotatedView.bounds.size.height, color: backViewColor)
-                previusView = rotatedView
+ 
+        if let animationView = self.animationView {
+            // added back view
+            var previusView: RotatedView?
+            for case let contener as RotatedView in animationView.subviews.sort({ $0.tag < $1.tag }) {
+                if contener.tag > 0 && contener.tag < animationView.subviews.count {
+                    previusView?.addBackView(contener.bounds.size.height, color: backViewColor)
+                    previusView = contener
+                }
             }
         }
         
@@ -266,16 +280,20 @@ public class FoldingCell: UITableViewCell {
     }
     
     public func isAnimating()->Bool {
-        guard animationItemViews != nil
-        else {
+        guard let animationItemViews = self.animationItemViews else {
             return false
         }
         
-        for item in animationItemViews! {
+        for item in animationItemViews {
             if item.layer.animationKeys()?.count > 0 {
                 return true
             }
         }
+        
+        if animationView?.alpha == 1 {
+            return true
+        }
+        
         return false
     }
     
@@ -303,7 +321,11 @@ public class FoldingCell: UITableViewCell {
             addImageItemsToAnimationView()
         }
         
-        animationView?.alpha = 1;
+        guard let animationView = self.animationView else {
+            return
+        }
+        
+        animationView.alpha = 1;
         containerView.alpha = 0;
         
         let durations = durationSequence(.Open)
@@ -314,8 +336,13 @@ public class FoldingCell: UITableViewCell {
         var to: CGFloat = CGFloat(-M_PI / 2)
         var hidden = true
         configureAnimationItems(.Open)
-        for var index = 0; index < animationItemViews?.count; index++ {
-            let animatedView = animationItemViews![index]
+        
+        guard let animationItemViews = self.animationItemViews else {
+            return
+        }
+        
+        for var index = 0; index < animationItemViews.count; index++ {
+            let animatedView = animationItemViews[index]
             
             animatedView.foldingAnimation(timing, from: from, to: to, duration: durations[index], delay: delay, hidden: hidden)
             
@@ -326,10 +353,13 @@ public class FoldingCell: UITableViewCell {
             delay += durations[index]
         }
         
-        let firstItemView = animationView!.subviews.filter{$0.tag == 0}.first
-        firstItemView!.layer.masksToBounds = true
-        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(durations[0] * Double(NSEC_PER_SEC))), dispatch_get_main_queue()) { () -> Void in
-            firstItemView!.layer.cornerRadius = 0
+        let firstItemView = animationView.subviews.filter{$0.tag == 0}.first
+        
+        if let first = firstItemView {
+            first.layer.masksToBounds = true
+            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(durations[0] * Double(NSEC_PER_SEC))), dispatch_get_main_queue()) { () -> Void in
+                first.layer.cornerRadius = 0
+            }
         }
         dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC))), dispatch_get_main_queue()) { () -> Void in
             self.animationView?.alpha = 0
@@ -357,9 +387,12 @@ public class FoldingCell: UITableViewCell {
         var hidden = true
         configureAnimationItems(.Close)
         for var index = 0; index < animationItemViews?.count; index++ {
-            let animatedView = animationItemViews?.reverse()[index]
+
+            guard let animatedView = animationItemViews?.reverse()[index] else {
+                continue
+            }
             
-            animatedView!.foldingAnimation(timing, from: from, to: to, duration: durations[index], delay: delay, hidden: hidden)
+            animatedView.foldingAnimation(timing, from: from, to: to, duration: durations[index], delay: delay, hidden: hidden)
             
             to = to == 0.0 ? CGFloat(M_PI / 2) : 0.0;
             from = from == 0.0 ? CGFloat(-M_PI / 2) : 0.0;
@@ -369,14 +402,20 @@ public class FoldingCell: UITableViewCell {
         }
         
         dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC))), dispatch_get_main_queue()) { () -> Void in
-            self.animationView!.alpha = 0
+            if let animationView = self.animationView {
+                animationView.alpha = 0
+            }
             completion?()
         }
         
-        let firstItemView = animationView!.subviews.filter{$0.tag == 0}.first
-        firstItemView!.layer.masksToBounds = false
-        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64((delay - durations.last! * 1.5) * Double(NSEC_PER_SEC))), dispatch_get_main_queue()) { () -> Void in
-            firstItemView!.layer.cornerRadius = self.foregroundView.layer.cornerRadius
+        if let animationView = self.animationView {
+            let firstItemView = animationView.subviews.filter{$0.tag == 0}.first
+            firstItemView?.layer.masksToBounds = false
+            if let durationLast = durations.last {
+                dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64((delay - durationLast * 1.5) * Double(NSEC_PER_SEC))), dispatch_get_main_queue()) { () -> Void in
+                    firstItemView?.layer.cornerRadius = self.foregroundView.layer.cornerRadius
+                }
+            }
         }
     }
 }
@@ -465,13 +504,17 @@ extension RotatedView {
 }
 
 extension UIView {
-    func pb_takeSnapshot(frame: CGRect) -> UIImage {
+    func pb_takeSnapshot(frame: CGRect) -> UIImage? {
         UIGraphicsBeginImageContextWithOptions(frame.size, false, 0.0);
         
         let context = UIGraphicsGetCurrentContext();
         CGContextTranslateCTM(context, frame.origin.x * -1, frame.origin.y * -1);
         
-        self.layer.renderInContext(UIGraphicsGetCurrentContext()!);
+        guard let currentContext = UIGraphicsGetCurrentContext() else {
+            return nil
+        }
+        
+        self.layer.renderInContext(currentContext);
         let image = UIGraphicsGetImageFromCurrentImageContext();
         UIGraphicsEndImageContext();
 

FoldingCell/FoldingCellTests/FoldingCellTests.swift

@@ -0,0 +1,45 @@
+//
+//  FoldingCellTests.swift
+//  FoldingCellTests
+//
+//  Created by Alex K. on 25/01/16.
+//  Copyright © 2016 Alex K. All rights reserved.
+//
+
+import XCTest
+
+class FoldingCellTests: XCTestCase {
+    
+    var viewController : UITableViewController!
+    
+    override func setUp() {
+        super.setUp()
+        
+        let storyboard = UIStoryboard(name: "Main", bundle: nil)
+        viewController = storyboard.instantiateViewControllerWithIdentifier("MainTableViewController") as! UITableViewController
+        viewController.beginAppearanceTransition(true, animated: false)
+    }
+    
+    override func tearDown() {
+         viewController.endAppearanceTransition()
+        super.tearDown()
+    }
+    
+    func testExample() {
+        let tableView = viewController.tableView
+        
+        for case let cell as FoldingCell in tableView.visibleCells {
+            XCTAssertTrue(cell.itemCount >= 2)
+        }
+        
+        
+    }
+    
+    func testPerformanceExample() {
+        // This is an example of a performance test case.
+        self.measureBlock {
+            // Put the code you want to measure the time of here.
+        }
+    }
+    
+}

FoldingCell/FoldingCellTests/Info.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>en</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>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+</dict>
+</plist>

README.md

@@ -1,4 +1,8 @@
 # FoldingCell
+[![CocoaPods](https://img.shields.io/cocoapods/p/FoldingCell.svg)](https://cocoapods.org/pods/FoldingCell)
+[![CocoaPods](https://img.shields.io/cocoapods/v/FoldingCell.svg)](http://cocoapods.org/pods/FoldingCell)
+[![Twitter](https://img.shields.io/badge/Twitter-@Ramotion-blue.svg?style=flat)](http://twitter.com/Ramotion)
+[![Travis](https://img.shields.io/travis/Ramotion/folding-cell.svg)](https://travis-ci.org/Ramotion/folding-cell)
 
 [shot on dribbble](https://dribbble.com/shots/2121350-Delivery-Card):
 ![Animation](Screenshots/folding-cell.gif)
@@ -14,7 +18,7 @@ Just add the FoldingCell.swift file to your project.
 
 or use [CocoaPods](https://cocoapods.org) with Podfile:
 ``` ruby
-pod 'FoldingCell', '~> 0.2'
+pod 'FoldingCell', '~> 0.5'
 ```
     
 
@@ -126,9 +130,15 @@ Ok, we've finished configuring the cell.
     }
 ```
 
-## [About Us](http://ramotion.com?utm_source=gthb&utm_medium=special&utm_campaign=folding-cell)
+## Licence
 
-[Ramotion - digital product design agency](http://ramotion.com?utm_source=gthb&utm_medium=special&utm_campaign=folding-cell)  
-We are ready for new interesting iOS app development projects.
+Adaptive tab bar is released under the MIT license.
+See [LICENSE](./LICENSE) for details.
 
-Follow us on [Twitter](http://twitter.com/ramotion).
+
+## About
+The project maintained by [app development agency](https://ramotion.com?utm_source=gthb&utm_medium=special&utm_campaign=foolding-cell) [Ramotion Inc.](https://ramotion.com?utm_source=gthb&utm_medium=special&utm_campaign=foolding-cell)
+See our other [open-source projects](https://github.com/ramotion) or [hire](https://ramotion.com?utm_source=gthb&utm_medium=special&utm_campaign=foolding-cell) us to design, develop, and grow your product.
+
+[![Twitter URL](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/intent/tweet?text=https://github.com/ramotion/foolding-cell)
+[![Twitter Follow](https://img.shields.io/twitter/follow/ramotion.svg?style=social)](https://twitter.com/ramotion)