android - How to animate change of background from one point -

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i have button in activity. when click on it, want background color of activity change point clicked whole activity. should change circular animation starts @ point touched screen , expands until fills screen. way of doing this?

you can use material animation library,

enter image description here

this default enter animation

what happening step step is:

shared orange box transitioning mainactivity detailsactivity. detailsactivity background viewgroup visibility starts invisible.

<relativelayout         android:layout_width="match_parent"         android:id="@+id/backgroundviewgroup"         android:visibility="invisible"         ...

after sharedelemententertransition ends circularreveal animation takes place making background viewgroup visible.

transition entertransition = getwindow().getsharedelemententertransition();     entertransition.addlistener(new transition.transitionlistener() {         @override         public void ontransitionstart(transition transition) {}          @override         public void ontransitionend(transition transition) {             animaterevealshow(bgviewgroup);         }          @override         public void ontransitioncancel(transition transition) {}          @override         public void ontransitionpause(transition transition) {}          @override         public void ontransitionresume(transition transition) {}     });

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