UIDynamicAnimator
public UIDynamicAnimator()
public virtual UICollectionViewLayoutAttributes GetLayoutAttributesForCell(NSIndexPath cellIndexPath)
public virtual UICollectionViewLayoutAttributes GetLayoutAttributesForDecorationView(NSString viewKind, NSIndexPath viewIndexPath)
public virtual UICollectionViewLayoutAttributes GetLayoutAttributesForSupplementaryView(NSString viewKind, NSIndexPath viewIndexPath)