title: UIBarButtonItem not being added to navigation
body: <p>I am unable to set the left button in my navigation bar. Anyone have an idea why the code below is not displaying a button?</p>
  
  <pre><code>UIBarButtonItem *barButton = [[UIBarButtonItem alloc] 
   initWithTitle:@"my left button" 
   style:UIBarButtonItemStyleBordered 
   target:nil 
   action:nil];
  
  
  [self.navigationItem setLeftBarButtonItem:barButton];
  
   //this is now printing out "my left button", 
   //but the button still does not appear on the navigation.
   NSLog(@"navigationItem.leftBarButtonItem.title:
    %@",self.navigationItem.leftBarButtonItem.title);
  </code></pre>
  
  <p>Interface Builder:</p>
  
  <p><img src="https://i.stack.imgur.com/i6yEd.png" alt="enter image description here"></p>
  
  <p>Simulator:</p>
  
  <p><img src="https://i.stack.imgur.com/5kLGR.png" alt="enter image description here"></p>
  
  <p>---UPDATE----</p>
  
  <p>The above code is updated with correct enum and init based on CodaFi's suggestions but the button is still not appearing.</p>