获取 ViewController 内的所有视图

Question

我正在尝试获取 UIViewController 中的所有视图。

我正在使用这段代码：

    for subview : UIView in self.view.subviews{
        //code here
    }

the problem is that I don't get views that are inside a UIView. so I get all view except of their children.

please, how can I get ALL Views that are either child or parent inside my UIViewController? even if a view has a child that has a child that has a child. I want to go through all views.

thanx in advance :)

(please in swift 4.0)

Answer 1

您需要递归处理所有子视图。

func processSubviews(of view: UIView) {
    // 1. code here do something with view
    for subview in view.subviews {
        // 2. code here do something with subview
        processSubviews(of: subview)
        // 3. code here do something with subview
    }
    // 4. code here do something with view
}

您需要将代码放在位置 1、2、3 或 4（或者可能是其中两个或更多位置），具体取决于您想要的结果。

然后你可以将其称为：

processSubviews(of: self.view)