Xcode Swift ViewDidLoad [英] Xcode Swift ViewDidLoad

问题描述

我有两个 ViewController.当我按下 FirstViewController 上的按钮时，SecondViewController 就会出现.当我按下 SecondViewController 上的按钮时，FirstViewController 再次出现.问题是，FirstViewController 上的视图不会再次加载.ViewDidLoad 循环不会再次加载.我想创建一个循环，它会在每次 FirstViewController 出现时检查一个变量.

I have two ViewControllers. When I press a button on the FirstViewController the SecondViewController shows up. When I press a button on the SecondViewController the FirstViewController shows up again. The problem is, that the View on the FirstViewController does not load again. The ViewDidLoad loop does not load again. I want to create a loop, which checks a variable every single time the FirstViewController shows up.

推荐答案

将该代码放入 viewDidAppear 或 viewWillAppear.

Put that code in viewDidAppear or viewWillAppear.

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