How to make a Scale Up Animation with Object Animator

Question

When using anim, I could do something like this

ScaleAnimation animation = new ScaleAnimation(0, 1.0, 0, 1.0, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);

to scale from 0 to original size of the object.

How could I do the same with ObjectAnimator or ValueAnimator?

Answer 1

You could use something like this for ValueAnimator:

ValueAnimator translate = ValueAnimator.ofFloat(1f, 1.5f);
translate.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        float scale = Float.parseFloat(animation.getAnimatedValue().toString());
        yourView.setScaleX(scale);
        yourView.setScaleY(scale);
    }
});
translate.start();

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And something like this for ObjectAnimator:

AnimatorSet animationSet = new AnimatorSet();

ObjectAnimator scaleY = ObjectAnimator.ofFloat(view, "scaleY", 1f, 1.5f);
ObjectAnimator scaleX = ObjectAnimator.ofFloat(view, "scaleX", 1f, 1.5f);

animationSet.playTogether(scaleX, scaleY);
animationSet.start();

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You can also set duration/interpolator/delay and similar properties for both animations. Also do not forget to start the animation after configuring.

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NOTE: Did not test this code, something might not work properly.