ViewDidAppear and ViewWillAppear is being called multiple times on one viewDidLoad in ios swift app [duplicate]

Question

I am making iPhone app on swift,here ViewDidAppear and ViewWillAppear is being called multiple times on one viewDidLoad in ios swift app?

please help me.

Answer 1

Whenever You push a viewController, It will call viewDidLoad then viewWillAppear and last viewDidAppear. But if you are coming back to viewController only viewWillAppear and viewDidAppear will call.

View will call these two (viewWillAppear & viewDidAppear) every time, whenever this viewController shows on every condition

i. On push - viewDidLoad after it, viewWillAppear & viewDidAppear.

ii. On back or pop - No viewDidLoad will call, Only viewWillAppear & viewDidAppear.

iii. On become active state - No viewDidLoad will call, Only viewWillAppear & viewDidAppear.