Explain View Controller Lifecycle events and their order

The View Controller Lifecycle in iOS is a sequence of events that occur from the creation to the destruction of a view controller. Understanding this lifecycle is crucial for managing the user interface and resources efficiently. Here is an explanation of the key lifecycle events and their order:

1. init(coder:)

This initializer is called when a view controller is instantiated from a storyboard or nib file. It is used to set up any initial configurations or dependencies that the view controller will need throughout its lifecycle. This method is called only once during the lifetime of the view controller.

2. loadView

This method is responsible for creating the view hierarchy programmatically if you are not using storyboards or nib files. It is called when the view controller's view property is accessed for the first time. If you override this method, you must set the view controller's view property to a valid view.

3. viewDidLoad

This method is called after the view has been loaded into memory. It is typically used for additional setup that needs to occur after the view is loaded, such as initializing data sources, setting up views, or making network requests. This method is called only once during the lifecycle of the view controller.

4. viewWillAppear(_:)

This method is called just before the view is added to the window and becomes visible to the user. It is a good place to make any last-minute updates to the view, such as updating the user interface based on the current state of the app. This method is called every time the view is about to appear.

5. viewDidAppear(_:)

This method is called after the view has been added to the window and is now visible to the user. It is often used to start animations, track page views, or begin collecting data from sensors or network requests. This method is called every time the view appears on the screen.

6. viewWillDisappear(_:)

This method is called just before the view is removed from the window and is no longer visible to the user. It is a good place to pause ongoing tasks, save state, or cancel network requests. This method is called every time the view is about to disappear.

7. viewDidDisappear(_:)

This method is called after the view has been removed from the window and is no longer visible to the user. It is often used to stop tasks that shoul...