@Override
protected void onStop() {
AppLog.log("Unregistering event listener");
app.getSensorManager().unregisterListener(this);
super.onStop();
}
@Override
protected void onResume() {
super.onResume();
AppLog.log("Registering event listener");
app.getSensorManager()
.registerListener(
this, app.getSensorList().get(sensorIndex), SensorManager.SENSOR_DELAY_UI);
}