Android Face Detection on the background

Question

I'm making an app where I want to detect user's face without showing it. I use standart android api which is android.hardware.Camera.faceDetection() When front camera sees the face, the phone vibrate. I've already implemented this part and now I need to make this app work on the background, so it shouldn't be preview shown on screen. Is it possible?

Answer 1

The code below is for the Background Worker. You can add your code in doInBackground(). It will execute your all processes in the background. Hope it will help full to you.

import javax.swing.JOptionPane;
import javax.swing.SwingWorker;

public class Background extends SwingWorker<Void, Void>{

    @Override
    protected void done(){
            //JOptionPane.showMessageDialog(null,"Process Done Successfully...","Successfull",JOptionPane.INFORMATION_MESSAGE);
    }

    @Override
    protected Void doInBackground() throws Exception {
        //Write your code here
        return null;    
    }
}