Fixes #66

Fixes #3

DemoExpandingCollection/DemoExpandingCollection/ViewControllers/DemoTableViewController/DemoTableViewController.swift

@@ -54,18 +54,15 @@ extension DemoTableViewController {
 extension DemoTableViewController {
 
     override func scrollViewDidScroll(_ scrollView: UIScrollView) {
-//    if scrollView.contentOffset.y < -25 {
-//      // buttonAnimation
-//      let viewControllers: [DemoViewController?] = navigationController?.viewControllers.map { $0 as? DemoViewController } ?? []
-        //
-//      for viewController in viewControllers {
-//        if let rightButton = viewController?.navigationItem.rightBarButtonItem as? AnimatingBarButton {
-//          rightButton.animationSelected(false)
-//        }
-//      }
-//      popTransitionAnimation()
-//    }
-
+        if scrollView.contentOffset.y < -25 , let navigationController = navigationController {
+            // buttonAnimation
+            for case let viewController as DemoViewController in navigationController.viewControllers {
+                if case let rightButton as AnimatingBarButton = viewController.navigationItem.rightBarButtonItem {
+                    rightButton.animationSelected(false)
+                }
+            }
+            popTransitionAnimation()
+        }
         scrollOffsetY = scrollView.contentOffset.y
     }
 }

DemoExpandingCollection/DemoExpandingCollection/ViewControllers/DemoViewController/DemoViewController.swift

@@ -22,7 +22,7 @@ class DemoViewController: ExpandingViewController {
 extension DemoViewController {
 
     override func viewDidLoad() {
-        itemSize = CGSize(width: 256, height: 335)
+        itemSize = CGSize(width: 256, height: 460)
         super.viewDidLoad()
 
         registerCell()

README.md

@@ -12,7 +12,7 @@
 [![codebeat badge](https://codebeat.co/badges/6a009992-5bf2-4730-aa35-f3b20ce7693d)](https://codebeat.co/projects/github-com-ramotion-expanding-collection)
 
 # Check this library on other platforms:
-<a href="https://github.com/Ramotion/expanding-collection-android"> 
+<a href="https://github.com/Ramotion/expanding-collection-android">
 <img src="https://github.com/ramotion/navigation-stack/raw/master/Android_Java@2x.png" width="178" height="81"></a>
 
 ## About
@@ -22,7 +22,7 @@ We specialize in the designing and coding of custom UI for Mobile Apps and Websi
 **Looking for developers for your project?**<br>
 This project is maintained by Ramotion, Inc. We specialize in the designing and coding of custom UI for Mobile Apps and Websites.
 
-<a href="https://ramotion.com/?utm_source=gthb&utm_medium=special&utm_campaign=expanding-collection-contact-us/#Get_in_Touch"> 
+<a href="https://ramotion.com/?utm_source=gthb&utm_medium=special&utm_campaign=expanding-collection-contact-us/#Get_in_Touch">
 <img src="https://github.com/ramotion/gliding-collection/raw/master/contact_our_team@2x.png" width="187" height="34"></a> <br>
 
 
@@ -31,7 +31,7 @@ The [iPhone mockup](https://store.ramotion.com?utm_source=gthb&utm_medium=specia
 ## Requirements
 
 - iOS 9.0+
-- Xcode 8
+- Xcode 9.0+
 
 ## Installation
 
@@ -39,12 +39,9 @@ Just add the Source folder to your project.
 
 or use [CocoaPods](https://cocoapods.org) with Podfile:
 ``` ruby
-pod 'expanding-collection', '~> 1.1.2' swift 4
-
-pod 'expanding-collection', '~> 1.0.3' swift 3
-
-pod 'expanding-collection', '~> 0.3.2' swift 2
+pod 'expanding-collection'
 ```
+
 or [Carthage](https://github.com/Carthage/Carthage) users can simply add to their `Cartfile`:
 ```
 github "Ramotion/expanding-collection"
@@ -84,7 +81,7 @@ import expanding_collection
 
 ``` swift
 override func viewDidLoad() {
-    itemSize = CGSize(width: 214, height: 264)
+    itemSize = CGSize(width: 214, height: 460) //IMPORTANT!!! Height of open state cell
     super.viewDidLoad()
 
     // register cell
@@ -154,10 +151,18 @@ func scrollViewDidEndDecelerating(scrollView: UIScrollView) {
 2) Set header height default 236
 
 ``` swift
-override func viewDidLoad() {
-    super.viewDidLoad()
+override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
+    super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
     headerHeight = ***
-}  
+}
+```
+OR
+
+``` swift
+required init?(coder aDecoder: NSCoder) {
+    super.init(coder: aDecoder)
+    headerHeight = ***
+}
 ```
 
 3) Call the push method in YourViewController to YourTableViewController
@@ -181,9 +186,9 @@ See [LICENSE](./LICENSE) for details.
 # Get the Showroom App for iOS to give it a try
 Try this UI component and more like this in our iOS app. Contact us if interested.
 
-<a href="https://itunes.apple.com/app/apple-store/id1182360240?pt=550053&ct=expanding-collection&mt=8" > 
+<a href="https://itunes.apple.com/app/apple-store/id1182360240?pt=550053&ct=expanding-collection&mt=8" >
 <img src="https://github.com/ramotion/gliding-collection/raw/master/app_store@2x.png" width="117" height="34"></a>
-<a href="https://ramotion.com/?utm_source=gthb&utm_medium=special&utm_campaign=expanding-collection-contact-us/#Get_in_Touch"> 
+<a href="https://ramotion.com/?utm_source=gthb&utm_medium=special&utm_campaign=expanding-collection-contact-us/#Get_in_Touch">
 <img src="https://github.com/ramotion/gliding-collection/raw/master/contact_our_team@2x.png" width="187" height="34"></a>
 <br>
 <br>

Source/ExpandingViewController/CollectionView/Cells/BasePageCollectionCell.swift

@@ -109,8 +109,8 @@ extension BasePageCollectionCell {
         if isOpen == isOpened { return }
 
         if ySpacing == .greatestFiniteMagnitude {
-            frontConstraintY.constant = isOpen == true ? -frontContainerView.bounds.size.height / 5 : 0
-            backConstraintY.constant = isOpen == true ? frontContainerView.bounds.size.height / 5 - yOffset / 2 : 0
+            frontConstraintY.constant = isOpen == true ? -frontContainerView.bounds.size.height / 6 : 0
+            backConstraintY.constant = isOpen == true ? frontContainerView.bounds.size.height / 6 - yOffset / 2 : 0
         } else {
             frontConstraintY.constant = isOpen == true ? -ySpacing / 2 : 0
             backConstraintY.constant = isOpen == true ? ySpacing / 2 : 0
@@ -133,7 +133,6 @@ extension BasePageCollectionCell {
         }
 
         isOpened = isOpen
-        configurationCell()
 
         if animated == true {
             UIView.animate(withDuration: 0.3, delay: 0, options: UIViewAnimationOptions(), animations: {
@@ -204,22 +203,6 @@ extension BasePageCollectionCell {
         return shadow
     }
 
-    func configurationCell() {
-        // Prevents indefinite growing of the cell issue
-        let i: CGFloat = isOpened ? 1 : -1
-        let superHeight = superview?.frame.size.height ?? 0
-
-        frame.size.height += i * superHeight
-        frame.origin.y -= i * superHeight / 2
-        if additionalWidth == .greatestFiniteMagnitude {
-            frame.origin.x -= i * yOffset / 2
-            frame.size.width += i * yOffset
-        } else {
-            frame.origin.x -= i * additionalWidth / 2
-            frame.size.width += i * additionalWidth
-        }
-    }
-
     func configureCellViewConstraintsWithSize(_ size: CGSize) {
         guard isOpened == false && frontContainerView.getConstraint(.width)?.constant != size.width else { return }
 

Source/ExpandingViewController/ExpandingViewController.swift

@@ -11,8 +11,8 @@ import UIKit
 /// UIViewController with UICollectionView with custom transition method
 open class ExpandingViewController: UIViewController {
 
-    /// The default size to use for cells.
-    open var itemSize = CGSize(width: 256, height: 335)
+    /// The default size to use for cells. Height of open cell state
+    open var itemSize = CGSize(width: 256, height: 460)
 
     ///  The collection view object managed by this view controller.
     open var collectionView: UICollectionView?
@@ -86,7 +86,7 @@ extension ExpandingViewController {
         let layout = PageCollectionLayout(itemSize: itemSize)
         collectionView = PageCollectionView.createOnView(view,
                                                          layout: layout,
-                                                         height: itemSize.height + itemSize.height / 5 * 2,
+                                                         height: itemSize.height,
                                                          dataSource: self,
                                                          delegate: self)
         if #available(iOS 10.0, *) {

expanding-collection.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = 'expanding-collection'
-  s.version      = '1.1.4'
+  s.version      = '1.1.5'
   s.summary      = 'Transition animtion from CollectionView to TableView'
   s.license      = 'MIT'
   s.homepage     = 'https://github.com/Ramotion/expanding-collection'