title: Pushing view controller from app delegate
body: <p>So recently I had to reorganize my tab bar and remove one the tabs for a view controller that I still need to access at the end of the app.  I am using NSNotifications which triggers a method in the app delegate which basically switches the tab <code>[self.myTabBar setSelectedIndex:REC_TAB];</code></p>
  
  <p>Worked like a charm.  Now that I can no longer select the tab, I'm finding I'm having trouble pushing/popping/presenting a view controller from the app delegate.  </p>
  
  <p>I'm new to this so any help would be appreciated.  </p>