Android custom revel animation over image -


i looking reveal animation on top of image.

enter image description here

  1. user clicks on thumbnail , opens image in full-screen looks (a). i.e, image covered.
  2. user clicks button , image starts reveal top bottom. going (a) -> (b) -> (c) in smooth transition.

the closest found https://www.youtube.com/watch?v=25ul2xs4u7u

for reveal animation, can use github library if you're targetsdkversion below 15 else can use below code.

private void show(final view view) {    int cx = (view.getleft() + view.getright()) / 2;   int cy = (view.gettop() + view.getbottom()) / 2;    int finalradius = math.max(view.getwidth(), view.getheight());   animator anim = viewanimationutils.createcircularreveal(view, cx, cy,     0, finalradius);   anim.setduration(1000);    view.setvisibility(view.visible);   anim.start();  }   private void hide(final view view) {    int cx = (view.getleft() + view.getright()) / 2;   int cy = (view.gettop() + view.getbottom()) / 2;    int initialradius = view.getwidth();    animator anim = viewanimationutils.createcircularreveal(view, cx, cy,     initialradius, 0);   anim.setduration(1000);    anim.addlistener(new animatorlisteneradapter() {    @override    public void onanimationend(animator animation) {     super.onanimationend(animation);     view.setvisibility(view.invisible);    }   });    anim.start();  }

link:
https://github.com/hendraanggrian/reveallayout
https://github.com/jaouan/revealator
http://www.edumobile.org/android/reveal-animation-example-introduced-in-android-5-0/


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