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!7

import android.app.Activity;
import android.widget.*;
import android.graphics.*;
import android.hardware.Camera;
import android.view.*;

p {
  print("Listing cameras...");
  
  runOnUiThread(r {
    int n = Camera.getNumberOfCameras();
    System.out.println("Cameras: " + n);

    final Camera cam = Camera.open(0/*n-1*/);
    
    Camera.Parameters p = cam.getParameters();
    p.setPreviewSize(100, 100);
    cam.setParameters(p);

    SurfaceView surfaceView = new SurfaceView(androidContext());
    SurfaceHolder surfaceHolder = surfaceView.getHolder();
    surfaceHolder.addCallback(new CamCallback());
    surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    
    androidShow(surfaceView);
    
    cam.setPreviewDisplay(surfaceHolder);
    cam.startPreview();
    
    print("Preview started.");
    
    surfaceView.post(r {
      cam.takePicture(null, null, null, new JpegCallback());
    });
    
    print("Waiting for callback");
  });
}

static class CamCallback implements SurfaceHolder.Callback {
  public void surfaceChanged (SurfaceHolder holder, int format, int width, int height) {
    print("surfaceChanged");
  }
  public void surfaceCreated (SurfaceHolder holder) {
    print("surfaceCreated");
  }
  public void surfaceDestroyed (SurfaceHolder holder) {
    print("surfaceDestroyed");
  }
}

static class ShutterCallback implements Camera.ShutterCallback {
  public void onShutter() {
    print "Shutter!"
  }
}

static class JpegCallback implements Camera.PictureCallback {
  public void onPictureTaken (byte[] data, Camera cam) {
    TextView tv = aTextView();
    tv.setText("Picture data: " + data.length);
    androidShow(tv);
    
    System.out.println("Picture data: " + data.length);
    cam.release();
    print "Camera released."
  }
}