ios - UIViewController View 的框架在呈现后发生变化(viewController : animated: completion: )

Question

我有一个 UIViewController，我在 ViewDidLoad 中设置了它的大小，如下所示:

//Setting view's frame
let width = UIScreen.main.bounds.size.width - 10
let height = (43 * UIScreen.main.bounds.height) / 100 //%43 of the screen
self.view.frame = CGRect(x: 5, y: 80, width: width, height: height)

它工作得很好，直到我尝试呈现另一个这样的 ViewController :

//Presenting AutoCompleteVC
self.autocompleteVC = GMSAutocompleteViewController()
self.autocompleteVC.delegate = self
self.present(self.autocompleteVC, animated: true, completion: nil)

在我关闭此 View (self.autocompleteVC.dismiss(animated: true, succession: nil)) 后，第一个 ViewController View 的框架更改为全屏的框架。

知道如何修复它吗？

谢谢!

Answer 1

在viewWillLayoutSubviews中设置框架。那时框架已经已知。像这样:

public override func viewWillLayoutSubviews() {
    super.viewWillLayoutSubviews()

   //Setting view's frame
   let width = UIScreen.main.bounds.size.width - 10
   let height = (43 * UIScreen.main.bounds.height) / 100 //%43 of the screen
   self.view.frame = CGRect(x: 5, y: 80, width: width, height: height)
}