Imageview single and double tap in android? -


i have imageview in android , need show popup while single tap on image , need zoom image while 2 finger cross.

i tried bellow code. can please 1 me.

thanks.

image = (imageview) findviewbyid(r.id.image); gesturedetector gdt = new gesturedetector(new gesturelistener());       image.setontouchlistener(new ontouchlistener() {                 @override                 public boolean ontouch(final view view, final motionevent event) {                     gdt.ontouchevent(event);                     return true;                 }             });        private static final int swipe_min_distance = 120;     private static final int swipe_threshold_velocity = 200;          private class gesturelistener extends gesturedetector.simpleongesturelistener {             @override             public boolean onfling(motionevent e1, motionevent e2, float velocityx, float velocityy) {                 if(e1.getx() - e2.getx() > swipe_min_distance && math.abs(velocityx) > swipe_threshold_velocity) {                                     return false; // right left                 }  else if (e2.getx() - e1.getx() > swipe_min_distance && math.abs(velocityx) > swipe_threshold_velocity) {                                   return false; // left right                 }                  if(e1.gety() - e2.gety() > swipe_min_distance && math.abs(velocityy) > swipe_threshold_velocity) {                                     return false; // bottom top                 }  else if (e2.gety() - e1.gety() > swipe_min_distance && math.abs(velocityy) > swipe_threshold_velocity) {                                     return false; // top bottom                 }                 return false;             }         }

would mind using library chris banes himself, zooming imageview?

https://github.com/chrisbanes/photoview


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