title: Set action for custom UIBarButtonItem
body: <p>I've created a <code>UIView</code> that has to be added to <code>BarButtonItem</code>. I can't set action to this button though. Here's the code I am using:</p>
  
  <pre><code> self.menuBarButton = [[UIBarButtonItem alloc] initWithCustomView:self.containerView];
      [self.menuBarButton setTarget:self];
      [self.menuBarButton setAction:@selector(menuButtonTapped)];
      self.navigationItem.leftBarButtonItem = self.menuBarButton;
  </code></pre>
  
  <p>The action doesn't run with success. I also tried to set an action directly to bar button after it's set to custom. </p>
  
  <pre><code>        [self.navigationItem.leftBarButtonItem setTarget:self];
          [self.navigationItem.leftBarButtonItem setAction:@selector(menuButtonTapped)];
  </code></pre>
  
  <p>When I do it for the usual barbutton item it works. Could you help spotting what's wrong?</p>