Overlay an activity on another activity OR overlay a view over another

Question

I have 2 classes, FirstActivity and SecondActivity.

First Activity

Intent intent=new Intent(getApplicationContext(),SecondActivity.class);
startActiv         


        

Answer 1

1-Take a screenshot of the first activity.

2-(Optional) Darken, tint or blur the screenshot.

3-Then call the second activity and use the first activity screenshot as background for the second activity.