问题
I have a particular requirement where i need to drag a element in one screen then another fragment becomes visible where i can drop the dragged view .
what is the best way to achieve this ? I am not sure how to achieve this behavior between two fragments .Thanks in advance!
回答1:
THE basics we need to understand is these constants for drag and drop both applicable for activity and fragments
DragEvent.ACTION_DRAG_STARTED
DragEvent.ACTION_DRAG_ENTERED
DragEvent.ACTION_DRAG_EXITED
DragEvent.ACTION_DROP
DragEvent.ACTION_DRAG_ENDED
now you need to make fragment VISIBLE ON DragEvent.ACTION_DRAG_ENTERED OR STARTED above calls are properly explained following links
http://www.vogella.com/tutorials/AndroidDragAndDrop/article.html
Here iam leaving you with few good links....
https://blahti.wordpress.com/2012/03/03/improved-drag-drop-for-gridview/
来源：https://stackoverflow.com/questions/15397395/drag-and-drop-between-two-fragments