ProgressBar dialog Without Border

Question

I am displaying a ProgressBar in Android, as seen below:

but there is a

Answer 1

do you still need ideas for this? I implemented the same thing in my app, but not as a dialog, I had two layouts that overlap each other. I then flip between the two layouts by setting the visibility .setVisibility(). As for the actual progress bar itself, I use this:

EDIT: Here's my whole XML file:

I use this layout for an Activity with an AsyncTask, so onPreExecute(), I do something like:

@Override
protected void onPreExecute(){
 findViewById(R.id.list_contents).setVisibility(View.GONE);
 findViewById(R.id.spinner_layout).setVisibility(View.VISIBLE);
}

And then do whatever I have to do, and onPostExecute() I have:

@Override
protected void onPostExecute(Cursor cursor){
 findViewById(R.id.list_contents).setVisibility(View.VISIBLE);
 findViewById(R.id.spinner_layout).setVisibility(View.GONE);
}