Update pre-drag lifecycle for apps with shortcuts.
- First of all, deferred drag has been renamed to pre-drag
to avoid confusion with the existing deferred end drag.
- For normal drags, the cycle is still startDrag -->
onDragStart --> onDrop --> onDropComplete --> onDragEnd.
- Pre-drags have two additional callbacks: onPreDragStart
and onPreDragEnd. onPreDragStart is called between
startDrag and onDragStart, and onPreDragEnd is called
at the same time as onDragStart or onDragEnd.
- If the pre-drag has not transitioned to a full drag before
onDragEnd, onDragStart and onDropComplete are skipped
(onDrop is still called to allow the DragView to animate).
Change-Id: Icd7a8f75d5fcc159f9a52758c22ab6eae3edb9e2
10 files changed