[Issue lxcid#49] Replaces LX_rasterizedImage with LX_snapshotView which attempts to use the iOS 7 snapshot function whenever possible.

Author: lxcid

LXReorderableCollectionViewFlowLayout/LXReorderableCollectionViewFlowLayout.m

@@ -45,18 +45,22 @@ - (NSDictionary *) LX_userInfo {
 
 @interface UICollectionViewCell (LXReorderableCollectionViewFlowLayout)
 
-- (UIImage *)LX_rasterizedImage;
+- (UIView *)LX_snapshotView;
 
 @end
 
 @implementation UICollectionViewCell (LXReorderableCollectionViewFlowLayout)
 
-- (UIImage *)LX_rasterizedImage {
-    UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.isOpaque, 0.0f);
-    [self.layer renderInContext:UIGraphicsGetCurrentContext()];
-    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
-    UIGraphicsEndImageContext();
-    return image;
+- (UIView *)LX_snapshotView {
+    if ([self respondsToSelector:@selector(snapshotViewAfterScreenUpdates:)]) {
+        return [self snapshotViewAfterScreenUpdates:YES];
+    } else {
+        UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.isOpaque, 0.0f);
+        [self.layer renderInContext:UIGraphicsGetCurrentContext()];
+        UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
+        UIGraphicsEndImageContext();
+        return [[UIImageView alloc] initWithImage:image];
+    }
 }
 
 @end
@@ -290,12 +294,12 @@ - (void)handleLongPressGesture:(UILongPressGestureRecognizer *)gestureRecognizer
             self.currentView = [[UIView alloc] initWithFrame:collectionViewCell.frame];
 
             collectionViewCell.highlighted = YES;
-            UIImageView *highlightedImageView = [[UIImageView alloc] initWithImage:[collectionViewCell LX_rasterizedImage]];
+            UIView *highlightedImageView = [collectionViewCell LX_snapshotView];
             highlightedImageView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
             highlightedImageView.alpha = 1.0f;
 
             collectionViewCell.highlighted = NO;
-            UIImageView *imageView = [[UIImageView alloc] initWithImage:[collectionViewCell LX_rasterizedImage]];
+            UIView *imageView = [collectionViewCell LX_snapshotView];
             imageView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
             imageView.alpha = 0.0f;