 <p>The "<code>DEMO</code>" files you're referring to are found <a href="https://github.com/romaonthego/REFrostedViewController/tree/master/Examples/Simple/REFrostedViewControllerExample" rel="nofollow">in the "Examples" folder</a> in that GitHub Repo.</p> <p>For your own use, you will need to take those demo files and modify them for your use and then drop them into your own project.</p> <p>As for your "<code>homeViewController.m</code>" file, I would imagine you'd replace the first line of that code with something like:</p> <pre><code>DEMONavigationController *navigationController = [[DEMONavigationController alloc] initWithRootViewController:[[homeViewController alloc] init]]; </code></pre> <p>(by the way... you should name your Objective-C classes and files with capital letters. It's methods, properties and variable names that should start with lower case letters).</p>