java如何处理imageview拖放中的拖放事件?
我需要拖放我的新项目。我提到了这个。但我在表演Drop时遇到了一个问题。我无法得到我持有的图像,也无法进入视野。我使用的DragListner如下所示。我不知道如何处理这件事
class MyDragListener implements OnDragListener {
@Override
public boolean onDrag(View view, DragEvent dragEvent) {
int dragAction = dragEvent.getAction();
View dragView = (View) dragEvent.getLocalState();
if (dragAction == DragEvent.ACTION_DRAG_EXITED) {
System.out.println("exit------------");
containsDragable = false;
} else if (dragAction == DragEvent.ACTION_DRAG_ENTERED) {
System.out.println("enter------------");
containsDragable = true;
} else if (dragAction == DragEvent.ACTION_DRAG_ENDED) {
System.out.println("end------------");
dragView.setVisibility(View.VISIBLE);
} else if (dragAction == DragEvent.ACTION_DROP && containsDragable) {
dragView.setVisibility(View.VISIBLE);
}
return true;
}
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