Is there any way to get upload progress correctly with HttpUrlConncetion

Question

Android Developers Blog recommend to use HttpURLConnection other than apache\'s HttpClient (http://android-developers.blogspot.com/2011/09/androids-htt

Answer 1

use Asynctask to upload file to upload your file to server and create a Progressdialog

1) run your code in

 doinbackground(){
    your code here..
}

2) update the progress in

publishProgress("" + (int) ((total * 100) / lenghtOfFile));
    //type this in the while loop before write..

3) and On updating the progress

protected void onProgressUpdate(String... progress) {
            Progress.setProgress(Integer.parseInt(progress[0]));
        }

4) dismiss the progress in

protected void onPostExecute(String file_url) {
            dismissDialog(progress);

Answer 2

I found the explanation on developer document http://developer.android.com/reference/java/net/HttpURLConnection.html

To upload data to a web server, configure the connection for output using setDoOutput(true).
For best performance, you should call either setFixedLengthStreamingMode(int) when the body length is known in advance, or setChunkedStreamingMode(int) when it is not. Otherwise HttpURLConnection will be forced to buffer the complete request body in memory before it is transmitted, wasting (and possibly exhausting) heap and increasing latency.

Calling setFixedLengthStreamingMode() first fix my problem. But as mentioned by this post, there is a bug in android that makes HttpURLConnection caches all content even if setFixedLengthStreamingMode() has been called, which is not fixed until post-froyo. So i use HttpClient instead for pre-gingerbread.