Android horizontal progressBar not updating progress

Question

I am using facebook graph request for uplaoding video. This api has onProgressCallback method which gives current bytes written and maximum bytes that can be written for a file as follows:

@Override
public void onProgress(final long current, final long max) {
    if (isFirstLoad) {
        progressBarHorizonatl.setProgress(0);
        progressBarHorizonatl.setMax((int) max);
        isFirstLoad = false;
    }
    progressBarHorizontal.setProgress((int) current);
}

this method is called repeatedly while uploading the video but progress bar is not updated. It will get updated at the last call only. Can anyone help me what might be the problem.

Answer 1

Update ProgressBar on UI thread. Try attached code.

@Override
public void onProgress(final long current, final long max) {
    if (isFirstLoad) {
        progressBarHorizonatl.setProgress(0);
        progressBarHorizonatl.setMax((int) max);
        isFirstLoad = false;
    }
    new Handler(Looper.getMainLooper()).post(new Runnable() {
                        @Override
                        public void run() {
                            Log.d("UI thread", "I am the UI thread");
                            progressBarHorizontal.setProgress((int) current);
                        }
                    });

}