How do I hide the view controller on my iPhone?
Selecting an item in the view controller causes a new view controller to appear on the screen via animation, hiding the old view controller. Tapping the back button on the navigation bar at the top of the interface removes the top view controller, thus revealing the view controller below.
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How does the navigation bar work on an iPhone?
Use UINavigationBar to display your app’s navigation controls in a bar at the top of the iOS device screen. You can also design a distinctive navigation bar to match your app design and create an intuitive interaction for your users.
How to pop top view controller off stack?
Pops the top view controller from the navigation stack and updates the display. func popViewController(animated: Bool) -> UIViewController? Set this value to true to animate the transition. Pass false if you are setting a navigation controller before your view is displayed. The view controller that was popped from the stack.
How can I remove the navigation bar from my iPhone?
The user can also remove the top view controller by using the back button on the navigation bar or by using a left edge swipe gesture. The navigation controller manages the navigation bar at the top of the interface and an optional toolbar at the bottom of the interface.
How to pass data between view controllers in iOS?
DetailViewController, you can run the app and see that it works. Use the up/down arrow keys to increase or decrease the volume. Note that prepare(for:sender:) is called for all segues leaving a view controller. In this case, we only have one, but in a real application, you can have more.
How to add two view controllers to storyboard?
Now go to the Main.storyboard file and find the ViewController in the object library, drag the ViewController and drop it into the Main.storyboard file. We now have two ViewControllers, a default one and a new one that we added.
What is the first view controller on the navigation stack?
A navigation controller object manages its child view controllers through an ordered array, known as the navigation stack. The first view controller in the array is the root view controller and represents the bottom of the stack.
Can an iPad navigation controller support all orientations?
On the iPhone, a navigation controller supports all orientations except upside-down portrait. On iPad, a navigation controller supports all orientations. If the navigation controller has a delegate object, the delegate can specify a different set of supported orientations using the navigationControllerSupportedInterfaceOrientations (_:) method.
What type of controller is a navigation controller?
A navigation controller is a container view controller, that is, it embeds the content of other view controllers within itself. Access the view of a navigation controller from its view property.
Is the toolbar hidden in the navigation controller?
The navigation toolbar is hidden by default, but you can show it for your navigation interface by calling the setToolbarHidden (_:animated:) method of your navigation controller object.
What does the back button do in a navigation controller?
For all views except the root, the navigation controller provides a back button that allows the user to go back in the hierarchy. A navigation controller object manages its child view controllers through an ordered array, known as the navigation stack.
How do I close control center on my iPhone?
To close Control Center, swipe up from the bottom of the screen or tap the screen. If you swipe too close to the top center of the screen, you can open Notification Center instead of Control Center. To open Control Center, swipe up from the bottom edge of any screen. To close Control Center, touch the top of the screen or press the Home button.
How do you remove a view controller from a stack?
Add and remove view controllers from the stack using segues or using the methods of this class. The user can also remove the top view controller by using the back button on the navigation bar or by using a left edge swipe gesture.
How to use the navigation interface in the iOS simulator?
Use a navigation interface to mimic the organization of hierarchical data managed by your app. At each level of the hierarchy, it provides a suitable screen (managed by a custom view controller) to display the content at that level. Figure 1 shows an example of the navigation interface presented by the Settings app in the iOS Simulator.
What does it mean when a view controller is visible?
For a context or full-screen modal, “is visible” could mean that it is at the top of the view controller’s stack or just visible but covered by another view controller.
What do view controllers do in an iOS app?
View controllers are fundamental building blocks of your iOS app. They govern what happens on the screen, from user interfaces to animation, from interaction to navigation and the many steps in between. In this article, you’ll learn everything you need to know about view controllers.
Where is the main view controller on the iPhone?
The parent view controller is displayed on the left side and is typically narrower than the child view controller. You can adjust the width of the parent view controller using the proudPrimaryColumnWidthFraction property. This display mode does not apply when the isCollapsed property is true.