public override void OnCreate()
{
base.OnCreate();
_speech = new TextToSpeech(this, this);
_orientationManager = new OrientationManager(
this.getSensorManager(),
this.getLocationManager());
_landmarks = new Landmarks(AndroidResourceReader.read(this, Resource.Raw.landmarks));
}
public override void OnDestroy()
{
_speech.Shutdown();
_orientationManager = null;
_landmarks = null;
base.OnDestroy();
}
