Camera onPreviewFrame not called

Question

when using the Camera.PreviewCallback implementation the onPreviewFrame is called without problem after initializing camera and starting preview (Camera.startPrevew()). The

Answer 1

You should call it within new instantiation of previewCallBacks() interface, like below

public void surfaceCreated(SurfaceHolder holder) {
        // if (mediaRecorder == null) {
        try {
            camera = Camera.open();
            camera.setPreviewCallback(new PreviewCallback() {
                public void onPreviewFrame(byte[] _data, Camera _camera) {
                }
            }
        }
}