Apps Progress bar setProgress do not update Progress

[satellitemundo]

Hi Friends,

I want to download a file from server and while downloading I want to show progress bar to display downloading pogress. I thought this is pretty much simple. But I am facing strange problem. Progress bar's setProgress method do not show the updated view of progress.

Below is my xml file

<ProgressBar android:id="@+id/downloading_progress_bar"
                            android:visibility="invisible" 
                            style="?android:attr/progressBarStyleHorizontal"
                            android:layout_width="wrap_content"
                            android:layout_height="5dip"
                            android:layout_marginTop="2dip"/>

Below is my java code...

downloading_progress_bar=(ProgressBar)findViewById(R.id.downloading_progress_bar);

ANd on click of a button I am starting the downloading...

else if(v==priceImage)
        {
            if(priceImage.getText().toString().equalsIgnoreCase("free"))
            {
                downloading_progress_bar.setVisibility(View.VISIBLE);
                
                downloading_progress_bar.setProgress(0);
                downloading_progress_bar.setMax(100);
                String downloadURL="http://watkinsbooks.cfmdeveloper.com/Books/eb_3/20_634436335548872500.epub";
                try 
                {
                    int count;
                    
                    URL url= new URL(downloadURL);
                    URLConnection conexion = url.openConnection();
                    conexion.connect();
                    int lengthOfFile=conexion.getContentLength();
                    InputStream input=new BufferedInputStream(url.openStream());
                    
                    OutputStream output=new FileOutputStream("/sdcard/sample_epub.epub");
                    
                    byte[] data =new byte[1024];
                    long total=0;
                    
                    while((count=input.read(data))!=-1)
                    {
                        //Log.v("","Reading file...");
                        Log.v(TAG,"-----------------------------------------");
                        total+=count;
                        Log.v(TAG,"Count = "+count);
                        Log.v(TAG,"Total = "+total);
                        int progress=(int)(total*100/lengthOfFile);
                        Log.v(TAG,"Progress "+(int)(total*100/lengthOfFile));
                        
                        if(progress%10==0)
                        {
                            if(downloading_progress_bar.getProgress()!=progress)
                            {
                                downloading_progress_bar.setProgress((int)(total*100/lengthOfFile));
                            }
                        }
                    
                        output.write(data,0,count);
                    }
                    
                    output.flush();
                    output.close();
                    input.close();
                } 
                catch (Exception e) 
                {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
}

It download's the file. But do not update the progress. Please Help...