android - ImageView animate -


i have problem animation. wrote code, nothing happens.

public void animate(view v){     imageview img = (imageview) findviewbyid(r.id.imageview);     img.animate().translationyby(-1000f).setduration(300); }

i using android studio 2.2.2

try may you

public void slidetoy() {     animation slide = null;     slide = new translateanimation(animation.relative_to_self, 0.0f,             animation.relative_to_self, 0.0f, animation.relative_to_self,             -5.0f, animation.relative_to_self, 0.0f);      slide.setduration(2000);     slide.setfillafter(true);     slide.setfillenabled(true);     img.startanimation(slide);      slide.setanimationlistener(new animation.animationlistener() {          @override         public void onanimationstart(animation animation) {          }          @override         public void onanimationrepeat(animation animation) {         }          @override         public void onanimationend(animation animation) {           }      });  }

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