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copied!<p>You can add a category to the class and try overriding <code>layoutSubviews:</code> from within the category. (This technique <a href="https://stackoverflow.com/questions/4319112/how-do-i-change-the-background-of-a-uinavigationbar/4319201#4319201">has been suggested for customizing navigation bars</a>, and it may well work here too.)</p> <p>Here's how you'd make a category, <a href="https://stackoverflow.com/questions/6934637/overwriting-uinavigationbar-to-set-a-default-titleview/6934790#6934790">taken from my answer here</a>. In your case, remember to substitute <code>UIView</code> for <code>UINavigationController</code>.</p> <p>Hit Command+N or open the "New File" dialog. Next, choose "Objective-C category" from the Cocoa Touch menu:</p> <p><img src="https://i.stack.imgur.com/ZGYEw.png" alt="Creating a category"></p> <p>Click Next and you will be prompted to enter the name of the class that you would like to add methods to as a category. It should look something like this:</p> <p><img src="https://i.stack.imgur.com/NZ1II.png" alt="Making a Category on the NavBar"></p> <p>Then, you should end up with a save file dialog. A quick note about convention here. Convention is to name a category after the original class, the plus sign, and then a description of what you're adding. Here's what yours might look like:</p> <p><img src="https://i.stack.imgur.com/y7jqx.png" alt="Category Naming Convention"></p> <p>Once you save your file, you will need get something like this: </p> <p><img src="https://i.stack.imgur.com/u6xqb.png" alt="Empty Category"></p> <p><strong>Edit:</strong></p> <p>If you want to go ahead and do this without a category, then your best bet is to make a subclass of UIView and then subclass <em>that</em> class wherever you want your custom behavior. Another advantage over a category is that your method will only work where you explicitly use the custom class. In categories, the method gets added everywhere.</p> <p>Good luck! </p>

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