Question

If I request a progress dialog like this in my main Activity then it is displayed as expected:

          requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);  
  setProgressBarIndeterminateVisibility(true); 

But if I set the visibility to “false”, and then reset it to “true” inside the called procedure in which I want to deploy it, nothing is displayed. Moving the requestWindowFeature to the procedure causes an exception. How should I be doing this?

Answer 1

You need to call requestWindowFeature() only once, in onCreate(), before you call setContentView(). Then you can use setProgressBarIndeterminateVisibility(true|false) to show or hide the progress indicator from anywhere in the activity (as long as it is on the UI thread, of course).