Simple Libgdx + Android camera

AndroidLauncher.java

package com.mygdx.game;

import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.os.Bundle;

import android.view.SurfaceView;
import android.view.View;
import android.widget.FrameLayout;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.backends.android.AndroidApplication;
import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
import com.badlogic.gdx.backends.android.AndroidGraphics;

public class AndroidLauncher extends AndroidApplication {


	@Override
	protected void onCreate (Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
		config.r = 8;
		config.g = 8;
		config.b = 8;
		config.a = 8;

		View view = initializeForView(new MyGdxGame(), config);

		((SurfaceView)((AndroidGraphics)Gdx.graphics).getView()).getHolder().setFormat(PixelFormat.TRANSLUCENT);

		CameraPreview preview = new CameraPreview(this, getCameraInstance());

		FrameLayout layout = new FrameLayout(this);

		layout.addView(view);
		layout.addView(preview);

		setContentView(layout);
	}


	public static Camera getCameraInstance(){
		Camera c = null;
		try {
			c = Camera.open(); // attempt to get a Camera instance
		}
		catch (Exception e){
			// Camera is not available (in use or does not exist)
		}
		return c; // returns null if camera is unavailable
	}
}