Android implements a way to move a picture on the screen (drag-and-drop function) _android

The example in this article describes how Android implements a way to move a picture around the screen arbitrarily. Share to everyone for your reference, specific as follows:

public class Dragexampleactivity extends activity {Bitmap mbitmap; /** called the activity is a.
    * * @Override public void onCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
    Mbitmap = Bitmapfactory.decoderesource (Getresources (), R.drawable.icon);
  Setcontentview (This) (new Dragview);
    } @Override protected void OnDestroy () {Super.ondestroy ();
      if (null!= mbitmap) {mbitmap.recycle ();
    Mbitmap = null;
    } private class Dragview extends View {private int mmotionx = 0;
    private int mmotiony = 0;
    Private Paint Paint;
      Public Dragview {Super (context);
    Paint = new paint ();
      @Override public void Draw (Canvas Canvas) {Super.draw (Canvas);
    Canvas.drawbitmap (Mbitmap, Mmotionx, mmotiony, paint);
      @Override public boolean ontouchevent (motionevent ev) {if (ev.getaction () = = Motionevent.action_down)
 {       Mmotionx = (int) ev.getx ();
        Mmotiony = (int) ev.gety ();
        Invalidate ();
      return true;
      }else {return super.ontouchevent (EV);

 }
    }
  }
}

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I hope this article will help you with the Android program.