Use UIApplication and view.windowScene.screen instead of UIScreen.main on iOS 13.0 and later (#804)

Source/Configuration/YPImagePickerConfiguration.swift

@@ -20,7 +20,15 @@ public struct YPImagePickerConfiguration {
     public static var widthOniPad: CGFloat = -1
 
     public static var screenWidth: CGFloat {
-		var screenWidth: CGFloat = UIScreen.main.bounds.width
+        var screenWidth: CGFloat = 0
+
+        if #available(iOS 13.0, *) {
+            let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene
+            screenWidth = windowScene?.screen.bounds.width ?? 1.0
+        } else {
+            screenWidth = UIScreen.main.bounds.width
+        }
+
 		if UIDevice.current.userInterfaceIdiom == .pad && YPImagePickerConfiguration.widthOniPad > 0 {
 			screenWidth =  YPImagePickerConfiguration.widthOniPad
 		}

Source/Filters/Photo/YPFiltersView.swift

@@ -32,7 +32,15 @@ class YPFiltersView: UIView {
             )
         )
 
-        let isIphone4 = UIScreen.main.bounds.height == 480
+        var height: CGFloat = 0
+
+        if #available(iOS 13.0, *) {
+            height = window?.windowScene?.screen.bounds.height ?? .zero
+        } else {
+            height = UIScreen.main.bounds.height
+        }
+
+        let isIphone4 = height == 480
         let sideMargin: CGFloat = isIphone4 ? 20 : 0
 
         |-sideMargin-imageView.top(0)-sideMargin-|

Source/Filters/Photo/YPPhotoFiltersVC.swift

@@ -126,7 +126,15 @@ open class YPPhotoFiltersVC: UIViewController, IsMediaFilterVC, UIGestureRecogni
 
     fileprivate func thumbFromImage(_ img: UIImage) -> CIImage {
         let k = img.size.width / img.size.height
-        let scale = UIScreen.main.scale
+
+        var scale: CGFloat = 0
+
+        if #available(iOS 13.0, *) {
+            scale = window?.windowScene?.screen.scale ?? 1.0
+        } else {
+            scale = UIScreen.main.scale
+        }
+
         let thumbnailHeight: CGFloat = 300 * scale
         let thumbnailWidth = thumbnailHeight * k
         let thumbnailSize = CGSize(width: thumbnailWidth, height: thumbnailHeight)

Source/Pages/Gallery/Album/YPAlbumsManager.swift

@@ -36,7 +36,15 @@ class YPAlbumsManager {
                 if album.numberOfItems > 0 {
                     let r = PHAsset.fetchKeyAssets(in: assetCollection, options: nil)
                     if let first = r?.firstObject {
-                        let deviceScale = UIScreen.main.scale
+                        var deviceScale: CGFloat = 0
+
+                        if #available(iOS 13.0, *) {
+                            let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene
+                            deviceScale = windowScene?.screen.scale ?? 1.0
+                        } else {
+                            deviceScale = UIScreen.main.scale
+                        }
+
                         let targetSize = CGSize(width: 78*deviceScale, height: 78*deviceScale)
                         let options = PHImageRequestOptions()
                         options.isSynchronous = true

Source/Pages/Gallery/LibraryMediaManager.swift

@@ -40,7 +40,17 @@ class LibraryMediaManager {
 
     func updateCachedAssets(in collectionView: UICollectionView) {
         let screenWidth = YPImagePickerConfiguration.screenWidth
-        let size = screenWidth / 4 * UIScreen.main.scale
+
+        var scale: CGFloat = 0
+
+        if #available(iOS 13.0, *) {
+            let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene
+            scale = windowScene?.screen.scale ?? 1.0
+        } else {
+            scale = UIScreen.main.scale
+        }
+
+        let size = screenWidth / 4 * scale
         let cellSize = CGSize(width: size, height: size)
 
         var preheatRect = collectionView.bounds

Source/Pages/Gallery/YPLibraryView.swift

@@ -156,11 +156,21 @@ internal final class YPLibraryView: UIView {
     }
 
     func cellSize() -> CGSize {
-        var screenWidth: CGFloat = UIScreen.main.bounds.width
+        var screenWidth: CGFloat = 0
+        var scale: CGFloat = 0
+
+        if #available(iOS 13.0, *) {
+            screenWidth = window?.windowScene?.screen.bounds.width ?? 1.0
+            scale = window?.windowScene?.screen.scale ?? 1.0
+        } else {
+            screenWidth = UIScreen.main.bounds.width
+            scale = UIScreen.main.scale
+        }
+
         if UIDevice.current.userInterfaceIdiom == .pad && YPImagePickerConfiguration.widthOniPad > 0 {
             screenWidth =  YPImagePickerConfiguration.widthOniPad
         }
-        let size = screenWidth / 4 * UIScreen.main.scale
+        let size = screenWidth / 4 * scale
         return CGSize(width: size, height: size)
     }
 

Source/Pages/Photo/YPCameraView.swift

@@ -50,7 +50,15 @@ internal class YPCameraView: UIView, UIGestureRecognizerDelegate {
         }
 
         // Layout
-        let isIphone4 = UIScreen.main.bounds.height == 480
+        var height: CGFloat = 0
+
+        if #available(iOS 13.0, *) {
+            height = window?.windowScene?.screen.bounds.height ?? .zero
+        } else {
+            height = UIScreen.main.bounds.height
+        }
+
+        let isIphone4 = height == 480
         let sideMargin: CGFloat = isIphone4 ? 20 : 0
         if YPConfig.onlySquareImagesFromCamera {
             layout(