Killing one activity from another

Question

I have two activities A and B. B is a transparent pass through activity, and A is seen. I want to kill B by pressing a button A.

Here\'s what I\'ve tried so far:

Answer 1

You could try to directly kill an activity by calling a static method in that activity:

Activity A should have a variable

 static ActivityA activityA;

In onCreate state:

 activityA = this;

and add this method:

public static ActivityA getInstance(){
   return   activityA;
 }

In activity B, call the function getInstance()

ActivityA.getInstance().finish();