title: Full screen dialog close display previous screen
body: <p>I am implementing code to display full screen dialog on error.</p>
  
  <p>Sequence like Activity A(launch) <strong>-></strong> Activity B(Launch Error Dialog) <strong>-></strong> Full Screen Error Dialog(onBack) <strong>-></strong> Close Activity B and display Activity A.</p>
  
  <p>and here is the problem, before display to Activity A it show glimpse of Activity B, is there any way to avoid it.</p>