What is a ViewController iOS?

In iOS Development, a View Controller is responsible for displaying the data of our iOS application on the screen . It acts as an interface between its Views (created by the developer) and the application data. Each ViewController in the Storyboard is assigned a Class that inherits the UIViewController class.

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What is ViewController in Swift?

A view controller manages a single root view, which may itself contain any number of subviews . User interactions with that view hierarchy are handled by your view controller, which coordinates with other objects of your app as needed. Every app has at least one view controller whose content fills the main window.

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What is a UIView?

UIView can be defined as an object by using which we can create and manage the rectangular area on the screen . We can have any number of views inside a view to create a hierarchical structure of the UIViews. The UIView is managed by using the methods and properties defined in the UIView class that inherits UIKit.

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