Explain about Viewcontroller lifecycle.

Question Posted / santosh kumar

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Explain about Viewcontroller lifecycle...

Answer / Nirbhay Narayan Pandey

"The view controller lifecycle in iOS consists of several stages:
1. Loading View - The view controller is loaded into memory but not yet displayed on the screen.
2. ViewDidLoad - This method gets called after the view controller's view has been added to a window and its auto layout constraints have been activated. You can initialize properties here.
3. View Will Appear - The view controller's view is about to be displayed on the screen, but it's not necessarily visible yet.
4. View Did Appear - The view controller's view has become visible on the screen.
5. Prepare For Segue - This method gets called when a segue (transition between screens) is triggered.
6. View Will Disappear - The view controller's view is about to disappear from the screen.
7. View Did Disappear - The view controller's view has disappeared from the screen.""

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