Wie programmiere ich das Ende einer App richtig?

Wenn ich die App allerdings beende, bleibt sie unter

Einstellungen -> Telefoninfo -> Akku -> Akkuverbrauch

immer noch sichtbar.

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

} // Ende onCreate

@Override
public void onStart() {
super.onStart();
Log.d(DEBUG_TAG, "im onStart, registering receiver, initialising UI now");
//inside here you can register receivers and initialise UI
}

@Override
public void onRestart() {
super.onRestart();
Log.d(DEBUG_TAG, "Im onResume... ");
}

@Override
public void onResume() {
super.onResume();
Log.d(DEBUG_TAG, "Im onRestart... ");
}

@Override
public void onPause() {
super.onPause();
/* do nothing for now
* Maybe of use in later release
* f.e. persisting changes for later use
*/
Log.d(DEBUG_TAG, "Im onPause... ");
}

@Override
public void onStop() {
super.onStop();
Log.d(DEBUG_TAG, "Im onStop,... ");
//Here all Boradcastreceivers and listeners should be stopped


//finish();
//System.exit(0); // This one only with a strong reason
}

@Override
public void onDestroy() {
super.onDestroy();
Log.d(DEBUG_TAG, "Im onDestroy... ");

//finish();
//System.exit(0);
}