我想在任何其他视图,甚至是导航栏上,显示一种“弹出”视图,看起来像这样:

全屏黑色背景,0.5 alpha,可以看到下面的另一个UIViewController。 中间有一个带有一些信息的UIView窗口,(如果你想知道一切,一个日历)。

为了做到这一点,我已经创建了一个UIViewController,它包含了两个uiview (background和window),我试图显示它。我尝试了一个简单的[mySuperVC addSubview:myPopUpVC。视图],但我仍然有上面的导航栏。

我试着把它表示为一个模态,但是下面的UIViewController消失了,我失去了透明效果。

有什么办法可以做到这一点吗,我相信这很简单……

谢谢!


当前回答

这里有一个简单的优雅的解决方案,是为我工作。你可以将导航栏的z位置设置为视图的下方:

self.navigationController.navigationBar.layer.zPosition = -1;

只要记住在完成时将其设置为0即可。

其他回答

Dalef伟大的解决方案在swift:

self.navigationController?.view.addSubview(view)

注意,如果你想在全屏中添加视图,那么只能使用下面的代码

添加这些UIViewController的扩展

public extension UIViewController {
   internal func makeViewAsFullScreen() {
      var viewFrame:CGRect = self.view.frame
      if viewFrame.origin.y > 0 || viewFrame.origin.x > 0 {
        self.view.frame = UIScreen.main.bounds
      }
   }
}

继续正常的子视图添加过程

现在用于添加UIViewController的viewDidAppear

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)

     self.makeViewAsFullScreen()
}

[self.navigationController。视图addSubview overlayView):;是你真正想要的吗

You need to add a subview to the first window with the UITextEffectsWindow type. To the first, because custom keyboards add their UITextEffectsWindow, and if you add a subview to it this won't work correctly. Also, you cannot add a subview to the last window because the keyboard, for example, is also a window and you can`t present from the keyboard window. So the best solution I found is to add subview (or even push view controller) to the first window with UITextEffectsWindow type, this window covers accessory view, navbar - everything.

let myView = MyView()
myView.frame = UIScreen.main.bounds

guard let textEffectsWindow = NSClassFromString("UITextEffectsWindow") else { return }
let window = UIApplication.shared.windows.first { window in
    window.isKind(of: textEffectsWindow)
}
window?.rootViewController?.view.addSubview(myView)
[[UIApplication sharedApplication].windows.lastObject addSubview:myView];