android - How to change Drag shadow after start? -

hi know question has been answered in here, problem don't know how use imagedragshadowbuilder , how start drag can change shadow drag(ball). have different shapes different colors , change drawable depending on event (action_drag_entered). have shape imageview ball onlongclicklistener.

r.drawable.mood_ball.xml:

<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">     <solid         android:color="@color/colorprimarydark"/>      <size         android:width="60dp"         android:height="60dp"/> </shape> 

i have on view.ondraglistener , change ball depending on event action_drag_entered: unfortunately not with:

imagedragshadowbuilder.fromresource(context context,r.drawable.mood_ball_red.xml); 

(start r.drawable.mood_ball , change r.drawable.mood_ball_red ) try fire event like here did not work. how can change drag shadow depending on action_drag_entered:

the drag start long click on ball

    view.dragshadowbuilder shadowbuilder;  private class onclicklistener implements view.onlongclicklistener {      @override     public boolean onlongclick(view view) {         clipdata data = clipdata.newplaintext("simple text", "text");         shadowbuilder = new view.dragshadowbuilder(view);         view.startdrag(data,shadowbuilder,null,0);         view.setvisibility(view.invisible);          return true;     } } 

and linearlayout looking like: