title: Android application current activity bring to front issue
body: <p>I have a basic question for which I don't think attaching any code-snippet may help. When we press home button while an app is in front we go to the home page and the app loses its focus.</p>
  
  <p>Now, My application has to have notification icon in the status bar. And as in my application, there is a possibility of having 2-3 activity visible(one above another in dialogue view). In certain situation, I am not really sure as to how could I resume such state when I press notification icon in the status bar.</p>
  
  <p>But, when I press home button and then press the application icon in the home screen I get everything as expected.</p>
  
  <p>So, is there any way, by which I can do the same with notification bar icon.</p>