Since Xcode 5 and iOS 7 the default appearance of a UINavigationBar is black translucent. This even affects the same app running in iOS 6. Black opaque is deprecated and can no longer be set in Interface Builder. However, you can set the appearance for all nav bars by putting this little gem in your […]
Since UIBarButtonItems do not have a “hidden” property, we can’t just set this to yes and it’ll disappear. Instead, we can set them to nil. In this example we’re hiding the right item in the navigation controller: [self.navigationItem setRightBarButtonItems:nil animated:YES];
You can hide (and show) navigation bars and toolbars from your UINavigationController with extremely funky animations, much like we see in the Photos app on iOS. In the app, when you single-tap the screen, both top and bottom toolbars disappear. Here’s how we do that: Provided you have your view controller embedded in a UINavigationController, […]
Some things are really easy to do via a Storyboard – but when you want to create the same thing in code I frequently forget how to do it. Turns out it’s equally simple: this example assumes you have a View Controller which is embedded in a Navigation Controller (so it already has a UINavigationBar […]
If the App Delegate has something that your top view controller needs then you simply pass it the required object via a property set on the top view controller. This is easy when your top view controller is also the root view controller. However, when you embed your top view controller in a Navigation Controller, […]
In UINavigationController speak, we “push” new controllers onto the stack (go forward), and we “pop” them off the stack (go back). The navigation controller handles all this for us. If you want to go back exactly one view controller, here’s how you can do it programmatically: // pop back to previous controller NSArray *myControllers = […]
In Your Storyboard I didn’t know the storyboard could do this, but it can: Select the Navigation Bar in question, then check the Attributes Inspector: In Code To set the title in code, you need to address the self.navigationItem.backBarButton property of your view controller and pass it a new UIBarButtonItem. Here’s one way of doing […]
Here’s what the title in a UINavigationBar looks like: You set it like this: self.navigationItem.title = @”My Title”;
