protected override void OnDestroy()
{
UnregisterReceiver(screenReceiver);
ScreenReceiver.ScreenLocked = false;
_orientationListener = null;
Game?.Dispose();
Game = null;
base.OnDestroy();
}
/// <summary>
/// OnCreate called when the activity is launched from cold or after the app
/// has been killed due to a higher priority app needing the memory.
/// </summary>
/// <param name='savedInstanceState'>Saved instance state.</param>
protected override void OnCreate(Bundle savedInstanceState)
{
Instance = this;
RequestWindowFeature(WindowFeatures.NoTitle);
base.OnCreate(savedInstanceState);
var filter = new IntentFilter();
filter.AddAction(Intent.ActionScreenOff);
filter.AddAction(Intent.ActionScreenOn);
filter.AddAction(Intent.ActionUserPresent);
screenReceiver = new ScreenReceiver();
RegisterReceiver(screenReceiver, filter);
_orientationListener = new OrientationListener(this);
}