performance - Android imageView is lagging when loading image from bitmap -

i have imageview has touch event move, rotate, , zoom imageview. code works fine, when load image gallery instead of drawable folder, touch event lagging. when try move, rotate or zoom in image, there delay , slow.

 imgphoto.setontouchlistener(new view.ontouchlistener() {          relativelayout.layoutparams parms;         int startwidth;         int startheight;         float dx = 0, dy = 0, x = 0, y = 0;         float angle = 0;          @override         public boolean ontouch(view v, motionevent event) {             final imageview view = (imageview) v;              ((bitmapdrawable) view.getdrawable()).setantialias(true);             switch (event.getaction() & motionevent.action_mask) {                 case motionevent.action_down:                     parms = (relativelayout.layoutparams) view.getlayoutparams();                     startwidth = parms.width;                     startheight = parms.height;                     dx = event.getrawx() - parms.leftmargin;                     dy = event.getrawy() - parms.topmargin;                     mode = drag;                     break;                 case motionevent.action_pointer_down:                     olddist = spacing(event);                     if (olddist > 10f) {                         mode = zoom;                     }                     d = rotation(event);                     break;                 case motionevent.action_up:                     break;                 case motionevent.action_pointer_up:                     mode = none;                     break;                 case motionevent.action_move:                     if (mode == drag) {                         x = event.getrawx();                         y = event.getrawy();                         parms.leftmargin = (int) (x - dx);                         parms.topmargin = (int) (y - dy);                         parms.rightmargin = 0;                         parms.bottommargin = 0;                         parms.rightmargin = parms.leftmargin + (5 * parms.width);                         parms.bottommargin = parms.topmargin + (10 * parms.height);                         view.setlayoutparams(parms);                     } else if (mode == zoom) {                         if (event.getpointercount() == 2) {                             newrot = rotation(event);                             float r = newrot - d;                             angle = r;                             x = event.getrawx();                             y = event.getrawy();                             float newdist = spacing(event);                             if (newdist > 10f) {                                 float scale = newdist / olddist * view.getscalex();                                 if (scale > 0.6) {                                     scalediff = scale;                                     view.setscalex(scale);                                     view.setscaley(scale);                                  }                             }                             view.animate().rotationby(angle).setduration(0).setinterpolator(new linearinterpolator()).start();                              x = event.getrawx();                             y = event.getrawy();                              parms.leftmargin = (int) ((x - dx) + scalediff);                             parms.topmargin = (int) ((y - dy) + scalediff);                             parms.rightmargin = 0;                             parms.bottommargin = 0;                             parms.rightmargin = parms.leftmargin + (5 * parms.width);                             parms.bottommargin = parms.topmargin + (10 * parms.height);                             view.setlayoutparams(parms);                         }                     }                     break;             }             return true;         }     }); 

the works fine when load image drawable folder in following

  android:src="@drawable/icon" 

however, if try load image gallery, touch event suppose move, rotate , zoom image lagging.

here's code use load image gallery , set image bitmap imageview.

            intent intent = new intent();             intent.settype("image/*");             intent.setaction(intent.action_get_content);             startactivityforresult(intent.createchooser(intent, "select picture"), pick_image); 

below code set imageview image phone.

         @override public void onactivityresult(int requestcode, int resultcode, intent data) {     super.onactivityresult(requestcode, resultcode, data);      if(requestcode == pick_image && resultcode == activity.result_ok) {         uri selectedimage = data.getdata();         try{             inputstream imagestream = getactivity().getcontentresolver().openinputstream(selectedimage);             bitmap yourselectedimage = bitmapfactory.decodestream(imagestream);             imgphoto.setimagebitmap(yourselectedimage);         }         catch (exception e)         {             e.printstacktrace();         }     } }