protected override void OnStop()
{
base.OnStop();
if (_boxThread.IsAlive)
{
_cameraActive = false;
}
//wait for thread to abort
int c = 0;
while (_boxThread.IsAlive && c < 5000)
{
Thread.Sleep(1);
c++;
}
if (_camera != null) {
_camera.AutoFocus (null);
_camera.Unlock ();
_camera.StopPreview ();
_camera.SetPreviewCallback (null);
_camera.Release ();
_camera = null;
}
if (_api.Initialized)
{
_api.Dispose();
}
if (!_boxThread.IsAlive)
{
_holderBox.RemoveCallback (this);
_holderBox.Dispose();
_surfaceBox.SetOnTouchListener(null);
_surfaceBox.Dispose();
}
_holderCamera.RemoveCallback (this);
_holderCamera.Dispose();
_surfaceCamera.Dispose();
_box = null;
_data = null;
_touchState = TouchState.None;
bitmap.Recycle();
GC.Collect();
Java.Lang.JavaSystem.Gc();
}
public void SurfaceCreated(ISurfaceHolder holder)
{
if (holder.Equals(_holderCamera))
{
CreateCamera(holder);
}
else if (holder.Equals(_holderBox))
{
screenWidth = _surfaceBox.Width;
screenHeight = _surfaceBox.Height;
lineDistance = screenWidth / 20;
_box = new CameraBox(screenWidth, screenHeight);
_boxThread.Start();
}
}