title: Reduce blank space between bar button items in UINavigationBar
body: <p>I notice the blank space between bar button items is quite large. I want to reduce the space to have more room for my title. I tried to create fixed space then added it among the buttons but it didn't work. Does anybody know how to do it?</p>
  
  <pre><code>UIBarButtonItem *fixedItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
      fixedItem.width = 10.0f;
  self.navigationItem.rightBarButtonItems = @[settingsButtonItem, fixedItem, speakerButtonItem, fixedItem, favouriteButtonItem];
  </code></pre>