如何从容器视图中添加占用所有视图的视图？

Question

我有一个UIContainerVIew。从这里，我想在所有viewController中加载一个具有不透明度的UIView。

float width = [[UIScreen mainScreen] bounds].size.width;
float height = [[UIScreen mainScreen] bounds].size.height;

self.myView = [[ITSMyView alloc] initWithFrame:CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y, width, height)];
[self.myView setFrame:CGRectMake(self.view.superview.superview.frame.origin.x, self.view.superview.superview.frame.origin.y, width, height)];

[self.view addSubview:self.myView];

如何正确添加并在UIContainerView的所有视图中显示？谢谢！

Answer 1

你可以使用

for (UIViewController * vc in self.parent.childViewControllers) {
 vc.view.addSubView(viewtoAdd)
}