Android : moving buttons smoothly at run time

here is the code that i find does it help me? AnimatorSet bouncer = new AnimatorSet(); bouncer.play(bounceAnim).before(squashAnim1); bouncer.play(squashAnim1).with(squashAnim2); bouncer.play(squashAnim1).with(stretchAnim1); bouncer.play(squashAnim1).with(stretchAnim2); bouncer.play(bounceBackAnim).after(stretchAnim2); ValueAnimator fadeAnim = ObjectAnimator.ofFloat(newBall, "alpha", 1f, 0f); fadeAnim.setDuration(250); AnimatorSet animatorSet = new AnimatorSet(); animatorSet.play(bouncer).before(fadeAnim); animatorSet.start();