ProgressDialog not shown when AsyncTask.get() called [duplicate]

Yes, get() waits if necessary for the computation to complete, and then retrieves its result. This means, that you are blocking your UI thread, waiting for the result.

Solution: Don't call get

Usually, you will call a function (callback) in the postExecute.

Calling .get() changes your AsyncTask into an effective "SyncTask" as it causes the current thread (which would be the UI thread) to wait until the AsyncTask has finished its processing. Since you are now blocking the UI thread the call to the ProgressDialog's .show() method never gets a chance to allow the dialog to draw itself the screen.

Removing the call will allow it to run properly in the background.

If you need to do processing after the task has completed I suggest you either put it inside the onPostExecute method itself or use a callback to the Activity from onPostExecute.

If I understand your question correctly, you need to update the progress of your AsyncTask in a ProgressDialog and this isn't currently working. So a couple of things to note: I'm not sure what you're trying to achieve with .get() but I'll assume you want to display the progress.

I've modified your program below to update the UI thread with your AsyncTask's progress. Everytime you need to update the progress, update that prog variable in the doInBackground method.

public class myAsync extends AsyncTask<String, Integer, List> {

  String message; // for dialog message
  ProgressDialog progress; 
  Intent myIntent;
  Context ctx;

  public myAsync(String message, Context ctx) {
    this.message = message;
    this.ctx = ctx;
    progress = new ProgressDialog(ctx);
  }

  @Override
  protected void onPreExecute() { 
    // Runs on the UI thread
    progress.setMessage(message);
    progress.setIndeterminate(true);
    progress.setCancelable(false);
    progress.show();    
  }

  @Override
  protected List doInBackground(String... params) {
    // Runs in the background thread
    // publish your progress here!!
    int prog = 5; // This number will represent your "progress"
    publishProgress(prog);
    return anyList; 
  }


  protected void onProgressUpdate(Integer... progress) {
    // Runs in the UI thread
    // This method will fire (on the UI thread) EVERYTIME publishProgress
    // is called.
    Log.d(TAG, "Progress is: " +progress);
  }

  @Override
  protected void onPostExecute(List result) {
    // Runs in the UI thread

    for (int i=0; i<result.size(); i++) {
      Log.d(TAG, "List item: " + result.get(i));
    }

    if(progress.isShowing())
      progress.dismiss();
  }
}