Bump version

Fix ScalingCarousel on Device Rotation

Example/Pods/Target Support Files/ScalingCarousel/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>2.2</string>
+	<string>2.3</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>

Example/ScalingCarousel/CodeViewController.swift

@@ -16,6 +16,13 @@ class CodeCell: ScalingCarouselCell {
         
         mainView = UIView(frame: contentView.bounds)
         contentView.addSubview(mainView)
+        mainView.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            mainView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
+            mainView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
+            mainView.topAnchor.constraint(equalTo: contentView.topAnchor),
+            mainView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor)
+            ])
     }
     
     required init?(coder aDecoder: NSCoder) {
@@ -40,6 +47,13 @@ class CodeViewController: UIViewController {
         super.didReceiveMemoryWarning()
         // Dispose of any resources that can be recreated.
     }
+
+    override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
+        super.viewWillTransition(to: size, with: coordinator)
+         if scalingCarousel != nil {
+            scalingCarousel.deviceRotated()
+         }
+    }
     
     // MARK: - Configuration
     
@@ -76,7 +90,11 @@ extension CodeViewController: UICollectionViewDataSource {
         if let scalingCell = cell as? ScalingCarouselCell {
             scalingCell.mainView.backgroundColor = .blue
         }
-        
+        DispatchQueue.main.async {
+            cell.setNeedsLayout()
+            cell.layoutIfNeeded()
+        }
+
         return cell
     }
 }

Example/ScalingCarousel/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>2.2</string>
+	<string>2.3</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSPrincipalClass</key>
@@ -25,6 +25,8 @@
 	<key>UISupportedInterfaceOrientations</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
 </dict>
 </plist>

Example/ScalingCarousel/StoryboardViewController.swift

@@ -30,7 +30,11 @@ class StoryboardViewController: UIViewController {
         
         carouselBottomConstraint.constant = Constants.carouselHideConstant
     }
-    
+
+    override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
+        super.viewWillTransition(to: size, with: coordinator)
+        carousel.deviceRotated()
+    }
     // MARK: - Button Actions
     
     @IBAction func showHideButtonPressed(_ sender: Any) {
@@ -56,6 +60,11 @@ extension CarouselDatasource: UICollectionViewDataSource {
         if let scalingCell = cell as? ScalingCarouselCell {
             scalingCell.mainView.backgroundColor = .red
         }
+
+        DispatchQueue.main.async {
+            cell.setNeedsLayout()
+            cell.layoutIfNeeded()
+        }
         
         return cell
     }

README.md

@@ -38,6 +38,12 @@ This property is declared in ScalingCarouselCell. You should add any cell conten
 cell.setNeedsLayout()
 cell.layoutIfNeeded()
 ```
+* Note: To ensure correct displayed of the ScalingCarousel, you need to call the following code in the method  `viewWillTransition(to size:, with coordinator:)` of the ViewController:
+
+```
+super.viewWillTransition(to: size, with: coordinator)
+scalingCarousel.deviceRotated()
+```
 
 ### Code
 
@@ -50,6 +56,13 @@ override init(frame: CGRect) {
   // Initialize the mainView property and add it to the cell's contentView
   mainView = UIView(frame: contentView.bounds)
   contentView.addSubview(mainView)
+  mainView.translatesAutoresizingMaskIntoConstraints = false
+  NSLayoutConstraint.activate([
+      mainView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
+      mainView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
+      mainView.topAnchor.constraint(equalTo: contentView.topAnchor),
+      mainView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor)
+  ])
 }
 ```
 
@@ -82,6 +95,15 @@ scalingCarousel.topAnchor.constraint(equalTo: view.topAnchor, constant: 50).isAc
 ```
 cell.setNeedsLayout()
 cell.layoutIfNeeded()
+```
+* Note: To ensure correct displayed of the ScalingCarousel, you need to call the following code in the method  `viewWillTransition(to size:, with coordinator:)` of the ViewController, If you have created the ScalingCarousel by code in the viewDidLoad, It is important to verify that it exists when the method `viewWillTransition` is called or we will have a crash if we load the viewController with the device in landscape mode:
+
+```
+super.viewWillTransition(to: size, with: coordinator)
+if scalingCarousel != nil {
+    scalingCarousel.deviceRotated()
+}
+
 ```
 
 ## Example

ScalingCarousel.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'ScalingCarousel'
-  s.version          = '2.2'
+  s.version          = '2.3'
   s.summary          = 'A super simple carousel view with scaling transitions written in Swift'
 
   s.description      = <<-DESC

ScalingCarousel/Classes/ScalingCarouselView.swift

@@ -16,7 +16,11 @@ import UIKit
  are scaled as the carousel scrolls.
  */
 open class ScalingCarouselView: UICollectionView {
-    
+
+    // MARK: - Properties (Private)
+
+    private var lastCurrentCenterCellIndex: IndexPath?
+
     // MARK: - Properties (Public)
     
     /// Inset of the main, center cell
@@ -118,6 +122,7 @@ open class ScalingCarouselView: UICollectionView {
         let originX = (CGFloat(indexPath.item) * (frame.size.width - (inset * 2)))
         let rect = CGRect(x: originX, y: 0, width: frame.size.width - (inset * 2), height: frame.height)
         scrollRectToVisible(rect, animated: animated)
+        lastCurrentCenterCellIndex = indexPath
     }
     
     override open func didMoveToSuperview() {
@@ -141,6 +146,26 @@ open class ScalingCarouselView: UICollectionView {
     public func didScroll() {
         scrollViewDidScroll(self)
     }
+
+    /*
+     This method should ALWAYS be called from the ViewController that handles the ScalingCarousel when
+     the viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) method is called
+
+     e.g Implement:
+
+     func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
+     super.viewWillTransition(to: size, with: coordinator)
+     carousel.deviceRotated()
+     }
+     */
+    public func deviceRotated() {
+        guard let lastCurrentCenterCellIndex = currentCenterCellIndex ?? lastCurrentCenterCellIndex else { return }
+        DispatchQueue.main.async {
+            self.reloadData()
+            self.scrollToItem(at: lastCurrentCenterCellIndex, at: .centeredHorizontally, animated: false)
+            self.didScroll()
+        }
+    }
 }
 
 private typealias PrivateAPI = ScalingCarouselView
@@ -245,6 +270,8 @@ extension InvisibleScrollDelegate: UIScrollViewDelegate {
     
     public func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
         delegate?.scrollViewDidEndDecelerating?(scrollView)
+        guard let indexPath = currentCenterCellIndex else { return }
+        lastCurrentCenterCellIndex = indexPath
     }
     
     private func updateOffSet() {