在 popViewController 调用后会调用 viewDidLoad 吗? [英] does viewDidLoad get called after a popViewController call?

问题描述

当您返回 UIView 时是否调用 viewDidLoad?

Does viewDidLoad get called when you're popping back to a UIView?

推荐答案

viewDidLoad 在 loadView 被调用时被调用.每当从 UIViewController 请求视图并且它当前为零时，就会调用 loadView.

viewDidLoad gets called whenever loadView is called. loadView is called whenever the view is requested from a UIViewController and it is currently nil.

如果你弹出一个 UIViewController 并且 view 属性为 nil，loadView 和 viewDidLoad 将被调用.如果视图从未加载或在另一个视图控制器在屏幕上时被卸载，则视图可能为零.如果同时推送多个视图控制器，它可能永远不会被加载.

If you pop to a UIViewController and the view property is nil, loadView and hence viewDidLoad will be called. The view could be nil if it was never loaded or if it was unloaded while another view controller was on screen. It might never have been loaded if several view controllers were pushed at once.

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