如何在iOS 9中隐藏单个视图控制器的状态栏？

Question

在我以模态方式呈现的ViewController中,我这样做了:

override func prefersStatusBarHidden() -> Bool {
    return true
}

这曾经工作,但它不再有效.仅为此视图控制器隐藏状态栏的最佳方法是什么？

Answer 1

对于Swift 3和Swift 4,它已经改为覆盖这样的变量:

override var prefersStatusBarHidden: Bool {
  return true
}

如果要在视图控制器显示后"更新"状态,则需要调用:

setNeedsStatusBarAppearanceUpdate()

请参阅文档.

Answer 2

对于Swift 3和Swift 4.2, 当视图出现时

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

    UIApplication.shared.isStatusBarHidden = true
}

当看到去往Dissapear的goint时

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

    UIApplication.shared.isStatusBarHidden = false
}

您可能需要在info.plist中设置下一行:

View controller-based status bar appearance = NO

Answer 3

在iOS 9,Xcode 7,Swift 2.0中,它又回到了之前的状态.

override func prefersStatusBarHidden() -> Bool {
        return true
}

实际上Xcode会告诉你

UIApplication.sharedApplication().setStatusBarHidden(true, withAnimation: .None) 

已被弃用,您应该使用prefersStatusBarHidden方法.

Answer 4

在你的UIViewController中:

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    UIApplication.shared.isStatusBarHidden = true
}

 override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    //It will show the status bar again after dismiss
    UIApplication.shared.isStatusBarHidden = false
}

override var prefersStatusBarHidden: Bool {
    return true
}

Answer 5

对于Swift 3,

override var prefersStatusBarHidden: Bool{
        return true
    }

并添加 viewDidLoad()

self.modalPresentationCapturesStatusBarAppearance = true

Answer 6

您可以通过简单地覆盖 prefersStatusBarHiddenViewController 中的属性来实现这一点，如下所示：

override var prefersStatusBarHidden: Bool {
   return true
}

这适用于 Swift 3/4。

Answer 7

UIApplication.sharedApplication().setStatusBarHidden(true, withAnimation: .None) 

当您希望将其返回到单独的 VC 中时：

UIApplication.sharedApplication().setStatusBarHidden(false, withAnimation: .None)