![]() ![]() You can also provide items for a toolbar that is managed by the navigation controller. In addition to telling the navigation controller when to display a new view, you are responsible for configuring the navigation bar-the view at the top of the screen that provides context about the user’s place in the navigation hierarchy. ![]() Each content view controller manages a distinct view hierarchy, and the navigation controller coordinates the navigation between these view hierarchies.Īlthough a navigation interface consists mostly of your custom content, there are still places where your code must interact directly with the navigation controller object. It is composed of views that the navigation controller manages directly and views that are managed by content view controllers you provide. The view hierarchy of a navigation controller is self contained. A navigation controller manages a stack of view controllers to provide a drill-down interface for hierarchical content. ![]()
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March 2023
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