override func preferredStatusBarStyle() -> UIStatusBarStyle {
 return UIStatusBarStyle.LightContent;
}

使用上述代码在任何ViewController中为特定的ViewController设置状态栏颜色为白色,在iOS8中对我来说是行不通的。有什么建议吗?使用UIApplication。shared应用方法,在信息中需要更改后颜色更改。Plist为整个应用程序。

// Change the colour of status bar from black to white
UIApplication.sharedApplication().statusBarStyle = .LightContent

我怎么能改变一些必要的和特定的视图控制器的状态栏颜色?


当前回答

这里有十亿个答案,所以我想为什么不以扩展的形式添加另一个(在@ ceure的帮助下)

斯威夫特3

扩展:

extension UIApplication {
    class var statusBarBackgroundColor: UIColor? {
        get {
            return (shared.value(forKey: "statusBar") as? UIView)?.backgroundColor
        } set {
            (shared.value(forKey: "statusBar") as? UIView)?.backgroundColor = newValue
        }
    }
}

实现:

UIApplication.statusBarBackgroundColor = .blue

其他回答

Swift 4.2解决方案与NavigationController

第一步:

打开你的信息。并插入一个名为“View controller based status bar appearance”或UIViewControllerBasedStatusBarAppearance的新键到YES,让每个VC使用自己的状态属性。

第二步

在每个VC中,像这样重写preferredStatusBarStyle属性:

override var preferredStatusBarStyle : UIStatusBarStyle {
    return .lightContent //.default for black style
}

最后一步

重写自定义NavigationController类中的preferredStatusBarStyle属性:

class NavigationController : UINavigationController {

override var preferredStatusBarStyle : UIStatusBarStyle {

    if let topVC = viewControllers.last {
        //return the status property of each VC, look at step 2
        return topVC.preferredStatusBarStyle  
    }

    return .default
}

截至2020年10月,Swift 5, Xcode 12

如果你想把它设置为应用中的所有视图控制器如果你的应用有导航控制器。

你可以在plist文件中这样做,如下所示:

这里有十亿个答案,所以我想为什么不以扩展的形式添加另一个(在@ ceure的帮助下)

斯威夫特3

扩展:

extension UIApplication {
    class var statusBarBackgroundColor: UIColor? {
        get {
            return (shared.value(forKey: "statusBar") as? UIView)?.backgroundColor
        } set {
            (shared.value(forKey: "statusBar") as? UIView)?.backgroundColor = newValue
        }
    }
}

实现:

UIApplication.statusBarBackgroundColor = .blue

实现preferredStatusBarStyle,如你所述,并调用self.setNeedsStatusBarAppearanceUpdate()在ViewDidLoad和 也在信息。设置UIViewControllerBasedStatusBarAppearance为YES(默认是YES)

目前还不清楚为什么它不起作用。我需要检查代码。另一个建议是 使用viewDidLoad UIApplication.sharedApplication()中的工作代码。statusBarStyle = . lightcontent,并将此更改为默认值,当您查看viewgetdisappear viewWillDisappear。

我在这个问题上遇到了一些麻烦。我不太喜欢在视图中全局改变状态栏的颜色,然后在视图中改变它,然后像接受的答案一样消失。信不信由你,你可以通过在你想要的视图控制器上重写preferredStatusBarStyle来实现。经过很长一段时间,这是我所做的让它工作:

Change View controller-based status bar appearance in your info.plist to YES. Now any full screen view controller can change the status bar style by overriding preferredStatusBarStyle. I specify full screen because this will not work for (non-full screen) modal view controllers, not without setting modal​Presentation​Captures​Status​Bar​Appearance to Yes that is. Also if you have embedded view controllers, like in a navigation controller for example, it will ask the top most view controller for status bar style. Overriding child​View​Controller​For​Status​Bar​Style and passing the embedded view controller is supposed to work but it didn't for me. So I just returned the embedded view controllers preferred status bar as the preferred status bar style. Something like this: override var preferredStatusBarStyle: UIStatusBarStyle { if let topViewController = viewControllers.last { return topViewController.preferredStatusBarStyle } return .default }