UICollectionView 重新排序：交互式移动还是拖放？

Question

As of iOS 9, UICollectionView supports interactive movement via beginInteractiveMovement and its sibling methods. As of iOS 11, it also supports drag and drop , which seems to support movement as well. In iOS 13 beta 4, drag and drop gestures have been combined with UIContextMenuInteraction animations ( Twitter link ) so you can transition from a context menu to a drag operation, but the same isn't true when reordering via the interactive movement APIs.

Is it better to implement interactive movement of items in a collection view using drag and drop going forward?

Answer 1

It is better to migrate to UICollectionViewDragDelegate and UICollectionViewDropDelegate . I recently had a task where I had to combine context menu, reordering (after activation via context menu) and UICollectionViewCompositionalLayout with orthogonal sections. I have to say, that if you use gesture recognizers and interactive movement, it will break scrolling in all orthogonal sections.