Finishing an Activity from a Broadcast Receiver

I have an Activity that I display as modeless when the phone rings (over the phone app). I would like to finish the Activity when either of the following events occur. The first is if I touch anywhere outside the Activity (this is not a problem), the second is if the ringing stops. I am listening for IDLE_STATE in the broadcast receiver but I am not sure on how to call the finish on the activity when I see it. The receiver is not registered by the activity but by the Manifest.xml

Solution 1:

write the code in your receiving broadcast now this will send another broad cast with the intent named "com.hello.action"

Intent local = new Intent();
local.setAction("com.hello.action");
sendBroadcast(local);

Now catch this intent in the activity with you want to finish it and then call the super.finish() on the onReceive method of your receiver like this

public class fileNamefilter extends Activity {
ArrayAdapter<String> adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    IntentFilter filter = new IntentFilter();

    filter.addAction("com.hello.action");
    registerReceiver(receiver, filter);

    }
BroadcastReceiver receiver = new BroadcastReceiver() {

    @Override
    public void onReceive(Context context, Intent intent) {
        finish();

    }
};

public void finish() {
    super.finish();
};
}

this will finish the activity