Question

when I download file i want progressbar sync with this. but not, my code is:

Thread thread = new Thread() {
            public void run() {
                try {
                    while ( (bufferLength = inputStream.read(buffer)) > 0 ) {
                        //add the data in the buffer to the file in the file output stream (the file on the sd card
                        fileOutput.write(buffer, 0, bufferLength);
                        //add up the size so we know how much is downloaded
                        downloadedSize += bufferLength;
                        pbar.setProgress((downloadedSize/totalSize)*100);
                        pbar.refreshDrawableState();

                        Log.d("CURRENT:", "" + (downloadedSize/totalSize)*100);
                    }
                } catch (Exception ex) {

                }
            }
        };
        thread.start();

Also my catlog file is not updated. Any help please….

Answer 1

You cannot update the UI from a background thread, Use AsyncTask because Androiders call it painless threading

Here is a nice Tutorial for using ProgressBar using AsyncTask