HPCollectionViewWaterfallLayout

HPCollectionViewWaterfallLayout is inspired by CHTCollectionViewWaterfallLayout and Pinterest, and it's a subclass of UICollectionViewLayout.

It provides a delegate style to config the layout, which is kind of more iOS flavor.

Improvements

• Support multiple sections with different number of columns
• Use binary search to boost performance

Screen Shots

Prerequisite

• ARC
• Xcode 4.5+
• iOS 6+

How to Use

Read the demo codes for detail information.

Setup delegate

HPCollectionViewWaterfallLayout *layout = [[HPCollectionViewWaterfallLayout alloc] init];
layout.delegate = self;

####Implement HPCollectionViewDelegateWaterfallLayout

-(CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout interItemSpaceForSection:(NSUInteger)section;
-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath;
-(NSUInteger)collectionView:(UICollectionView*)collectionView layout:(UICollectionViewLayout*)collectionViewLayout numberOfColumnsForSection:(NSUInteger)section;
-(CGFloat)collectionView:(UICollectionView*)collectionView layout:(UICollectionViewLayout*)collectionViewLayout preferredColumnSpaceForSection:(NSUInteger)section;

Limitation

• Only vertical scrolling is supported.
• No supplementary view and decoration view.

License

HPCollectionViewWaterfallLayout is available under the MIT license. See the LICENSE file for more info.

Contact

Weibo: @Teeeerry大师兄黑曼巴

gmail: hepeng.zhang1