How to get the root view controller of a navigation controller?

You can access the top view controller through the topViewController computed property, but the UINavigationController class doesn't offer an API that easily lets you access the root controller. But it's easy to do. The root view controller is simply the view controller that sits at the bottom of the navigation stack.
Accordingly, where can I find the root view controller?
You can access the navigation controller's array of view controllers through its viewControllers property. To access the root view controller, we ask for the first item of the array of view controllers. Each view controller in the array is a child view controller and the navigation controller is the parent view controller.
Next, what kind of controller is a navigation controller? A navigation controller is a container view controller—that is, it embeds the content of other view controllers inside of itself. You access a navigation controller’s view from its view property.
In this manner, where does the navigation controller come from in Swift?
In AppDelegate, the navigation controller comes from the window’s root view controller. In prepareForSegue it comes from the segue’s destination view controller. After that, though, the process for grabbing the first child of the navigation controller is the same.
Also Know, which is the first view controller in the navigation stack?
A navigation controller object manages its child view controllers using 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.

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Why is the navigation bar under the navigation controller?

Because the content view underlaps the navigation bar in iOS 7 and later, you must consider that space when designing your view controller content. The navigation controller manages the creation, configuration, and display of the navigation bar and optional navigation toolbar.

How does a navigation controller build a navigation bar?

A navigation controller builds the contents of the navigation bar dynamically using the navigation item objects (instances of the UINavigationItem class) associated with the view controllers on the navigation stack. To customize the overall appearance of a navigation bar, use UIAppearance APIs.

How to control navigation bar with navigation controller?

To control a navigation bar when using a navigation controller, the following steps are required: Create a navigation controller in Interface Builder or in the code. Configure the appearance of the navigation bar using the navigationBar property on the UINavigationController object.

What kind of controller is a navigation controller?

A navigation controller is a container view controller—that is, it embeds the content of other view controllers inside of itself. You access a navigation controller’s view from its view property.

Can a navigation controller override a view controller?

The default navigation item uses the view controller’s title, but you can override the navigationItem on a UIViewController subclass to gain complete control of the navigation bar’s content. A navigation controller automatically assigns itself as the delegate of its navigation bar object.

How are navigation buttons used in the navigation bar?

Users will identify with this element to anchor where in the experience they have moved into and how they will return. The navigation bar will also house the navigation buttons to travel back to previous pages. The navigation buttons are used to return the user one step backward in the experience.

How are navigation buttons used in the navigation bar?

Users will identify with this element to anchor where in the experience they have moved into and how they will return. The navigation bar will also house the navigation buttons to travel back to previous pages. The navigation buttons are used to return the user one step backward in the experience.

How is global navigation used in web navigation?

The global navigation of a website, as another segment of web navigation, serves as the outline and template in order to achieve an easy maneuver for the users accessing the site, while local navigation is often used to help the users within a specific section of the site.

Can a navigation database be used for navigation?

One acceptable method is to compare the database with the current applicable aeronautical charts to verify navigation information prior to dispatch. If changes to the current charts for the route to be flown (including alternate information) have been published, the aircraft database should not be used to conduct flight operations.

How is air navigation different from land navigation?

Air navigation. Successful air navigation involves piloting an aircraft from place to place without getting lost, not breaking the laws applying to aircraft, or endangering the safety of those on board or on the ground. Air navigation differs from the navigation of surface craft in several ways; Aircraft travel at relatively high speeds,...

Why is igo navigation better than other navigation apps?

The iGO Navigation app requires less storage space than other offline navigation apps, so you can save your storage for more important things like photos, videos, and music. The saved storage space means that you can take as many selfies and time lapse videos as your heart desires!

How is faceted navigation different from hierarchical navigation?

In contrast to hierarchical navigation based on only one attribute, faceted navigation offers users the ability to navigate to desired items based on several attributes. In addition, users can select any available attribute to start their navigation. Another important benefit is that an empty result set is not possible with faceted navigation.

How to remove navigation bar for navigation page in xaml?

If we want to remove navigation bar from XAML itself, we have to use the below property. NavigationPage.HasNavigationBar="false" Following is the code snippet that shows how to use “NavigationPage.HasNavigationBar” in a Content page. <!-- Place new controls here --> <Label Text="Welcome to Xamarin.Forms!"

Is the celestial navigation book the same as the navigation book?

It closely follows the Celestial Navigation book. The slide presentation was specifically designed to allow Celestial Navigation instructors to conduct their classes following a ready-made plan, with graphics, examples and exercises to do in class.

How are local navigation and main navigation related?

All of these aspects work together to allow site visitors to recognize that the main navigation is a main navigation and that local navigation is a local navigation. This sets the stage for interacting with the navigation and the site as a whole.

How is inertial navigation different from other navigation techniques?

Inertial navigation represents a unique method of navigation, in which there is no dependency on external sources of information. As opposed to other position fixing navigation techniques, inertial navigation performs the navigation in a relative sense with respect to the initial navigation state of the moving platform.

How is celestial navigation used in modern navigation?

Modern practical navigators usually use celestial navigation in combination with satellite navigation to correct a dead reckoning track, that is, a course estimated from a vessel's position, course and speed.

What's the difference between page navigation and site navigation?

Good navigation experiences present viewers with a complete picture of what is available on the site and, combined with the home page, provide a comprehensive "story" for the site. Page navigation and site navigation display differently. The links that you see in site navigation are static on every page in the site.

What kind of navigation software does sal navigation use?

SAL Navigation We develop and market Speed Logs & Echo Sounders, Voyage Data Recorders (VDR), and associated Cloud Applications and Services. Skip to content Toggle Navigation Products Voyage Data Recorders (VDR)

Can you use tabbed navigation as a main navigation system?

While using tabbed navigation as a main navigation system has gone a bit out of style, it can work. As with most things, your primary concern should not be what Nielsen says about tabbed navigation, but what your audience says. Do they find it difficult to use?