Asynctask プログレスバー

@Override
protected void onPreExecute() {
        progressDialog_ = new ProgressDialog(uiActivity_);
        progressDialog_.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
     progressDialog_.setIndeterminate(false);
     progressDialog_.show();
    }
 
@Override
protected void onProgressUpdate(Integer... progress) {
        progressDialog_.incrementProgressBy(progress[0]);
    }
 
@Override
protected void onPostExecute(Bitmap result) {
     progressDialog_.dismiss();
     
    }