对我来说，什么都没用。我试图改变状态栏颜色在ViewController2，这是嵌入在NavigationController，这反过来，从ViewController1被模态地呈现。这种方法行不通:

override var preferredStatusBarStyle: UIStatusBarStyle {
    return .darkContent
}

什么都没有发生，直到我找到了这个解决方案: 将这一行添加到ViewController1

导航控制器。modalPresentationCapturesStatusBarAppearance = 真正的

let navigationController = UINavigationController(rootViewController: viewController2)
navigationController.modalPresentationStyle = .overFullScreen
navigationController.modalTransitionStyle = .crossDissolve           
navigationController.modalPresentationCapturesStatusBarAppearance = true
self.present(navigationController, animated: true)

所以如果你的导航方案类似于ViewController1呈现的ViewController2，尝试modalPresentationCapturesStatusBarAppearance属性呈现的一个

文档:

The default value of this property is false. When you present a view controller by calling the present(_:animated:completion:) method, status bar appearance control is transferred from the presenting to the presented view controller only if the presented controller's modalPresentationStyle value is UIModalPresentationStyle.fullScreen. By setting this property to true, you specify the presented view controller controls status bar appearance, even though presented non-fullscreen. The system ignores this property’s value for a view controller presented fullscreen.

Swift 3 - Xcode 8。

如果你想让状态栏最初隐藏在启动屏幕上，那么试试这个，

步骤1:将以下内容添加到info.plist。

查看基于控制器的状态栏外观值NO 状态栏初始隐藏值为YES

第二步:在didFinishLaunchingWithOptions方法中写入。

UIApplication.shared.isStatusBarHidden = false
UIApplication.shared.statusBarStyle = UIStatusBarStyle.lightContent

在Plist中添加以下内容:

状态栏样式:UIStatusBarStyleLightContent 基于视图控制器的状态栏外观:NO

在iOS 8中: add NavigationController.NavigationBar.BarStyle = UIBarStyle.Black;对viewDidLoad

简单地调用

[[UINavigationBar appearance] setBarStyle:UIBarStyleBlack];

在

-(BOOL)application:(UIApplication *)application 
           didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
}

我的AppDelegate的方法在iOS7中非常适合我。

这对我来说真是小菜一碟。

去你的应用的info.plist。

“查看基于控制器的状态栏外观”设置为“否” 设置状态栏样式为UIStatusBarStyleLightContent

然后转到你的应用程序的委托，并粘贴下面的代码，你设置你的窗口的RootViewController。

#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)

if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0"))
{
    UIView *view=[[UIView alloc] initWithFrame:CGRectMake(0, 0,320, 20)];
    view.backgroundColor=[UIColor colorWithRed:0/255.0 green:0/255.0 blue:0/255.0 alpha:1.0];
    [self.window.rootViewController.view addSubview:view];
}

宾果。这对我很有用。