Android Programming Tutorials

Photographic Memory

private void takePicture() {

camera.takePicture(null, null, photoCallback);

}

SurfaceHolder.Callback surfaceCallback=new SurfaceHolder.Callback() {

public void surfaceCreated(SurfaceHolder holder) {

camera=Camera.open();

try {

camera.setPreviewDisplay(previewHolder);

}

catch (Throwable t) {

Log.e("Photographer",

"Exception in setPreviewDisplay()", t);

Toast

.makeText(Photographer.this, t.getMessage(),

Toast.LENGTH_LONG)

.show();

}

}

public void surfaceChanged(SurfaceHolder holder,

int format, int width,

int height) {

Camera.Parameters parameters=camera.getParameters();

parameters.setPreviewSize(width, height);

parameters.setPictureFormat(PixelFormat.JPEG);

camera.setParameters(parameters);

camera.startPreview();

}

public void surfaceDestroyed(SurfaceHolder holder) {

camera.stopPreview();

camera.release();

camera=null;

}

};

Camera.PictureCallback photoCallback=new Camera.PictureCallback() {

public void onPictureTaken(byte[] data, Camera camera) {

// do something with the photo JPEG (data[]) here!

camera.startPreview();

}

};

}

Here, we initialize our SurfaceView in onCreate(). When the SurfaceView has

been created, we connect the camera to it. When the SurfaceView size has

been set (in surfaceChanged()), we configure the Camera to work with the

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