加载时进度对话框旋转轮停止

Question

I am using the code for showing progress bar with spinning wheel in asyn task as below

class Startsyntask extends AsyncTask<Void, Void, Void> 
    {
         ProgressDialog dialog = new ProgressDialog(Myclass.this);
         protected void onPreExecute() 
         {
             dialog.setMessage("Please wait...");
             dialog.setIndeterminate(true);
             dialog.setCancelable(false);
             dialog.show();
         }

         @Override
         protected Void doInBackground(Void... arg0) 
         {

            // my code to download the contents from the Server ( approx 230 mb in size)

            return null;    
         }

         protected void onPostExecute(Void unused) 
         {      
             dialog.dismiss();
         }
    }

but the spinner shows only for some time and the spinner freezes . I don't know where i am going wrong . I could not guess whether the progress in complete or not . I have searched for many related threads but i could not get the solution yet .

Thanks in advance .

Answer 1

Does it freeze of disappears? If it freezes than my guess is that you main thread is stuck. You probably have a bug or the download is doing something wrong.