how to fadeIn and fadeout animation ripple in android

the animation ripple implement the via RippleBackgound class (link github.com).then you have  implement  code how to fade in and fade animation ripple.

            

RippleView rippleView=new RippleView(getContext());

ObjectAnimator fadeOut = ObjectAnimator.ofFloat(rippleView, "alpha",  1f, .3f);

fadeOut.setDuration(2000);

           

ObjectAnimator fadeIn = ObjectAnimator.ofFloat(rippleView, "alpha", .3f,1f);

fadeIn.setDuration(2000);

           

animatorSet.play(fadeIn).after(fadeOut);