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

Create static Class variable to save the instance: static SampleActivity sampleActivity;

On Create of first Activity save the Instance, like this: incidenteActivity = this;

Create a static method to get the instance:

public static SampleActivity getInstance(){
    return   sampleActivity;
}

wherever you want call:

SampleActivity.getInstance().finish();

it really works, regards,

Answer 2

I found a nice way to finish one activity from another, it is similar to what Lumis did. So if you want to close ActivityA from ActivityB you can do this:

In ActivityA do:

className = this.getClass().getName();

and pass it on to AvtivityB. Then in ActivityB do:

((Activity) Class.forName(className).newInstance()).finish();

You can put a string with the name of your class into className yourself, but it needs to be a full name with package too.

Answer 3

You can stop the other activity by calling Activity.finish(). Alternatively, you can use Activity.finishActivity() to finish an activity started by startActivityForResult().

Answer 4

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();