ios - 在哪些情况下 viewWillAppear(_ animated: Bool) 方法不会被调用，即使 viewDidLoad() 已经被调用？

Question

我的视图生命周期：

viewDidLoad()正常调用，但未viewWillAppear(_ animated: Bool)调用但正常出现在 UI 中：

override func viewDidLoad() {
    super.viewDidLoad()
    // some business
}

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    // some business
}

标签： iosswiftviewcontroller

Answer 1

From documentation:

If a view controller is presented by a view controller inside of a popover, this method is not invoked on the presenting view controller after the presented controller is dismissed.