objective c - What method is called after tap back button in ios -


i have 2 view controllers navigation controller. when use [self.navigationcontroller popviewcontrolleranimated:yes]; in second 1 - first 1 opens methods in viewdidload don't called. methods called in first 1 controller in situation?

the navigation controller sends viewwillappear: view controller before putting view on screen, , viewdidappear: after.

inside viewwillappear: , viewdidappear:, view controller can check self.ismovingtoparentviewcontroller. if ismovingtoparentviewcontroller yes, view controller being added navigation controller in first place (presumably because it's navigation controller's root view controller, or because being pushed). if ismovingtoparentviewcontroller no, view controller in navigation controller's stack, , view controller being popped reveal it.

read “responding display-related notifications” in view controller programming guide ios.


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