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2014/10/15 ¤U¤È 10:10:59

iphone Programming Glossary: layoutattributesforitematindexpath

how do you determine spacing between cells in UICollectionView flowLayout

http://stackoverflow.com/questions/13017257/how-do-you-determine-spacing-between-cells-in-uicollectionview-flowlayout

if nil attributes.representedElementKind NSIndexPath indexPath attributes.indexPath attributes.frame self layoutAttributesForItemAtIndexPath indexPath .frame return attributesToReturn UICollectionViewLayoutAttributes layoutAttributesForItemAtIndexPath NSIndexPath.. self layoutAttributesForItemAtIndexPath indexPath .frame return attributesToReturn UICollectionViewLayoutAttributes layoutAttributesForItemAtIndexPath NSIndexPath indexPath UICollectionViewLayoutAttributes currentItemAttributes super layoutAttributesForItemAtIndexPath indexPath.. layoutAttributesForItemAtIndexPath NSIndexPath indexPath UICollectionViewLayoutAttributes currentItemAttributes super layoutAttributesForItemAtIndexPath indexPath UIEdgeInsets sectionInset UICollectionViewFlowLayout self.collectionView.collectionViewLayout sectionInset if..

How to make Supplementary View float in UICollectionView as Section Headers do in UITableView plain style

http://stackoverflow.com/questions/13511733/how-to-make-supplementary-view-float-in-uicollectionview-as-section-headers-do-i

Every layout object should implement the following methods collectionViewContentSize layoutAttributesForElementsInRect layoutAttributesForItemAtIndexPath layoutAttributesForSupplementaryViewOfKind atIndexPath if your layout supports supplementary views layoutAttributesForDecorationViewOfKind.. firstObjectAttrs UICollectionViewLayoutAttributes lastObjectAttrs if numberOfItemsInSection 0 firstObjectAttrs self layoutAttributesForItemAtIndexPath firstObjectIndexPath lastObjectAttrs self layoutAttributesForItemAtIndexPath lastObjectIndexPath else firstObjectAttrs.. 0 firstObjectAttrs self layoutAttributesForItemAtIndexPath firstObjectIndexPath lastObjectAttrs self layoutAttributesForItemAtIndexPath lastObjectIndexPath else firstObjectAttrs self layoutAttributesForSupplementaryViewOfKind UICollectionElementKindSectionHeader..