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Account for alwaysBounce(Vertical|Horizontal) when calculating scrollable directions

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This commit is contained in:
Samuel Hsiung 2016-03-04 21:33:08 -08:00
parent 30463db034
commit 85394f09b4
1 changed files with 5 additions and 2 deletions
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7
AsyncDisplayKit/ASCollectionView.mm
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@ -637,10 +637,13 @@ static NSString * const kCellReuseIdentifier = @"_ASCollectionViewCell";
- (ASScrollDirection)nonFlowLayoutScrollableDirections
{
ASScrollDirection scrollableDirection = ASScrollDirectionNone;
if (self.contentSize.width + self.contentInset.left + self.contentInset.right > self.bounds.size.width) { // Can scroll horizontally.
CGFloat totalContentWidth = self.contentSize.width + self.contentInset.left + self.contentInset.right;
CGFloat totalContentHeight = self.contentSize.height + self.contentInset.top + self.contentInset.bottom;
if (self.alwaysBounceHorizontal || totalContentWidth > self.bounds.size.width) { // Can scroll horizontally.
scrollableDirection |= ASScrollDirectionHorizontalDirections;
}
if (self.contentSize.height + self.contentInset.top + self.contentInset.bottom > self.bounds.size.height) { // Can scroll vertically.
if (self.alwaysBounceVertical || totalContentHeight > self.bounds.size.height) { // Can scroll vertically.
scrollableDirection |= ASScrollDirectionVerticalDirections;
}
return scrollableDirection;