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Added copying of cell's layer properties to the draggable view #62

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Added copying of cell's layer properties to the draggable view #62

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35 changes: 34 additions & 1 deletion LXReorderableCollectionViewFlowLayout/LXReorderableCollectionViewFlowLayout.m
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Original file line number Diff line number Diff line change
Expand Up @@ -287,18 +287,51 @@ - (void)handleLongPressGesture:(UILongPressGestureRecognizer *)gestureRecognizer

UICollectionViewCell *collectionViewCell = [self.collectionView cellForItemAtIndexPath:self.selectedItemIndexPath];

self.currentView = [[UIView alloc] initWithFrame:collectionViewCell.frame];
//
// Get the draggable cell preview a frame based on bounds (independent of current transform)
// and adjust the center to the cell's frame center
//
self.currentView = [[UIView alloc] initWithFrame:collectionViewCell.bounds];
self.currentView.center = collectionViewCell.center;


collectionViewCell.highlighted = YES;
UIImageView *highlightedImageView = [[UIImageView alloc] initWithImage:[collectionViewCell LX_rasterizedImage]];
highlightedImageView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
highlightedImageView.alpha = 1.0f;

// Maintain the cell's layer properties in highlight preview
highlightedImageView.clipsToBounds = YES;
highlightedImageView.layer.cornerRadius = collectionViewCell.layer.cornerRadius;
highlightedImageView.layer.borderColor = collectionViewCell.layer.borderColor;
highlightedImageView.layer.borderWidth = collectionViewCell.layer.borderWidth;


collectionViewCell.highlighted = NO;
UIImageView *imageView = [[UIImageView alloc] initWithImage:[collectionViewCell LX_rasterizedImage]];
imageView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
imageView.alpha = 0.0f;

// Maintain the cell's layer properties in image preview
imageView.clipsToBounds = YES;
imageView.layer.cornerRadius = collectionViewCell.layer.cornerRadius;
imageView.layer.borderColor = collectionViewCell.layer.borderColor;
imageView.layer.borderWidth = collectionViewCell.layer.borderWidth;

//
// Maintain the cell's layer border and shadow attributes
// Here we have to disable clipsToBounds in order to make the shadow visible if availble
//
self.currentView.clipsToBounds = NO;
CGFloat cornerRadius = collectionViewCell.layer.cornerRadius;
self.currentView.layer.cornerRadius = cornerRadius;
self.currentView.layer.shadowColor = collectionViewCell.layer.shadowColor;
self.currentView.layer.shadowOffset = collectionViewCell.layer.shadowOffset;
self.currentView.layer.shadowRadius = collectionViewCell.layer.shadowRadius;
self.currentView.layer.shadowOpacity = collectionViewCell.layer.shadowOpacity;
self.currentView.layer.shadowPath = collectionViewCell.layer.shadowPath;
self.currentView.backgroundColor = [UIColor clearColor];

[self.currentView addSubview:imageView];
[self.currentView addSubview:highlightedImageView];
[self.collectionView addSubview:self.currentView];
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