设置子视图委托

Question

出于好奇，如何使用for循环设置所有子视图的委托？

for case let i  in (myTest.popoverPresentationController?.presentedViewController.view.subviews)! 
{
   //how do i set the delegate of i?
   i.delegate = self
}

Answer 1

你可以试试这个：

if let subviews = myTest.popoverPresentationController?.presentedViewController.view.subviews {
    for view in subviews {
        if let customView = view as? CustomView {
            customView.delegate = self
        }
    }
}