Getting the Camera Preview to Display.

Newbie & Debugging Questions
#1

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So, I’ve been referencing this: http://developer.android.com/reference/android/hardware/Camera.html

I’m using LibGDX which is why you may see some difference, I’ve also changed mCamera to androidCamera for readability.

Here’s my code:


        package com.fmeg.tapdat.android.camera;

import java.io.IOException;

import android.hardware.Camera;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

import com.fmeg.tapdat.android.AndroidLauncher;
import com.fmeg.tapdat.camera.CameraInterface;

public class AndroidCamera extends SurfaceView implements
		SurfaceHolder.Callback, CameraInterface {

	private AndroidLauncher application;

	private SurfaceHolder mHolder;

	private Camera androidCamera;

	public AndroidCamera(AndroidLauncher _application) {
		super(_application.getContext());
		this.application = _application;
		mHolder = getHolder();
		mHolder.addCallback(this);
		mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
		surfaceCreated(mHolder);
	}

	@Override
	public void showCamera(boolean show) {
		androidCamera.startPreview();
	}

	/**
	 * Organized by call order
	 */
	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		androidCamera = Camera.open();
		try {
			androidCamera.setPreviewDisplay(mHolder);
		} catch (Exception e) {
		}
	}

	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
			int height) {
		Camera.Parameters params = androidCamera.getParameters();
		params.setPreviewSize(width, height);
		androidCamera.setParameters(params);
	}

	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		androidCamera.stopPreview();
		androidCamera = null;
	}
	

}

I have an interface called CameraInterface with the following code:

    package com.fmeg.tapdat.camera;
    
    public interface CameraInterface {
        public void showCamera(boolean show);
    }

In my main class (android project) my code looks like this


    public class AndroidLauncher extends AndroidApplication {
    	@Override
    	protected void onCreate (Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
    		AndroidCamera cam = new AndroidCamera(this);
    		initialize(new TapdatGame(cam), config);
    	}
    
    }

and in my main class (Core project)

    package com.fmeg.tapdat;
    
    import com.badlogic.gdx.ApplicationAdapter;
    import com.badlogic.gdx.Gdx;
    import com.badlogic.gdx.graphics.GL20;
    import com.fmeg.tapdat.camera.CameraInterface;
    
    public class TapdatGame extends ApplicationAdapter {
    
    	private CameraInterface camera;
    	
    	public TapdatGame(CameraInterface cameraInterface) {
    		this.camera = cameraInterface;
    	}
    	
    	@Override
    	public void create () {
    		camera.showCamera(true);
    	}
    
    	@Override
    	public void render () {
    		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
    	}
    	
    	public CameraInterface getCamera() { 
    		return camera;
    	}
    	
    }

Please help me get this working, the current implementation invokes an camera related error

[Camera]:  Error 1001
#2

Added new information

#3

Made some class changes, posted error

#4

Updated class, now throwing error 1001

#5

So you’re poorly copying your questions from other websites now?

#6