Question

I get a green screen with the front camera from samsung galaxy s, but the preview is correct. With the Back-Camera can I make photos.

Where is the problem?

This is my PictureCallback:

    public void onIvButtonShutterClick(View view) {

    PictureCallback pictureCallback = new PictureCallback() {

        @Override
        public void onPictureTaken(byte[] data, Camera camera) {
            try {
                File picture = new File(My_Camera.this.getFilesDir()
                        + "/bild.jpg");
                FileOutputStream pictureOut = new FileOutputStream(picture);
                pictureOut.write(data);
                pictureOut.flush();
                pictureOut.close();
                Toast.makeText(
                        My_Camera.this,
                        getResources().getString(
                                R.string.tx_my_camera_save)
                                + "\n" + picture.getAbsolutePath(),
                        Toast.LENGTH_SHORT).show();
            } catch (Exception e) {
                e.printStackTrace();
            }
            //mCamera.startPreview(); // Preview wird weiter ausgeführt
        }
    };

    mCamera.takePicture(null, null, pictureCallback);
}

I access on the front camera with:

    @Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
        int height) {

        mParameters = mCamera.getParameters();

        mParameters.set("camera-id", 2);
        mParameters.setPictureFormat(PixelFormat.JPEG);
        mCamera.setDisplayOrientation(270);
        mCamera.setParameters(mParameters);
        mCamera.startPreview();
}

Answer 1

I had the same problem but never found a real solution.

What I ended up using was to grab frames from the camera preview. This has some issues – like, pictures are much more likely to be blurry.

The relevant method for grabbing preview frames is Camera.setOneShotPreviewCallback.