Android property animation: how to increase view height?

Question

How to increase the view height using Property Animations in Android?

ObjectAnimator a = ObjectAnimator.ofFloat(viewToIncreaseHeight, "translationY", -100); a.setInterpolator(new AccelerateDecelerateInterpolator()); a.setDuration(1000); a.start(); 

The translationY actually moves the view not increase the height. How can I increase the height of the view?

Answer 1

ValueAnimator anim = ValueAnimator.ofInt(viewToIncreaseHeight.getMeasuredHeight(), -100); anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {     @Override     public void onAnimationUpdate(ValueAnimator valueAnimator) {         int val = (Integer) valueAnimator.getAnimatedValue();         ViewGroup.LayoutParams layoutParams = viewToIncreaseHeight.getLayoutParams();         layoutParams.height = val;         viewToIncreaseHeight.setLayoutParams(layoutParams);     } }); anim.setDuration(DURATION); anim.start();  

Answer 2

You can use ViewPropertyAnimator, which can save you some lines of code :

yourView.animate()    .scaleY(-100f)    .setInterpolator(new AccelerateDecelerateInterpolator())    .setDuration(1000); 

that should be all you need, be sure to check the documentation and all available methods for ViewPropertyAnimator.