android - How do I reverse a running animation? -

when button touched, starts zoom animation.

animation zoomin = animationutils.loadanimation(context, r.anim.zoomin); view.startanimation(zoomin); 

the zoomin.xml code:

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"     android:fillenabled="true"     android:fillafter="true">     <scale         android:fromxscale="1.0"         android:toxscale="1.3"         android:fromyscale="1.0"         android:toyscale="1.3"         android:pivotx="50%"         android:pivoty="50%"         android:duration="200"         android:interpolator="@android:anim/accelerate_interpolator"/> </set> 

but if button released during still running animation, should reverse animation this point in time.

how can achieve that?

you use viewpropertyanimator achieve this.

for example:

button button = (button) findviewbyid(r.id.yourbutton);  button.setontouchlistener(new view.ontouchlistener() {     @override     public boolean ontouch(view v, motionevent event) {          // adjust scale , duration values according needs          if (event.getaction() == motionevent.action_down) {             v.animate().scalex(2).scaley(2).setduration(2000);         } else if (event.getaction() == motionevent.action_up) {             v.animate().scalex(1).scaley(1).setduration(2000);         }         return false;     } });