改变所有viewcontroller的状态栏文本颜色

斯威夫特3

if在Info.plist中查看基于控制器的状态栏外观= YES

然后使用这个扩展为所有NavigationController

extension UINavigationController
{
    override open var preferredStatusBarStyle: UIStatusBarStyle {
    return .lightContent
     }
 }

如果没有UINavigationController，只有UIViewController，那么使用下面的代码:

extension UIViewController
{
    override open var preferredStatusBarStyle: UIStatusBarStyle {
    return .lightContent
     }
 }

objective - c

创建类别类

对于UIView控制器

在ui + StatusBarStyle.h

 @interface UIViewController (StatusBarStyle)
 @end

在ui + StatusBarStyle.m

 #import "UIViewController+StatusBarStyle.h"

 @implementation UIViewController (StatusBarStyle)
 -(UIStatusBarStyle)preferredStatusBarStyle
 {
  return UIStatusBarStyleLightContent;
 }
 @end 

对于UINavigationController

在UINavigationController + StatusBarStyle.h

 @interface UINavigationController (StatusBarStyle)
 @end

在UINavigationController + StatusBarStyle.m

 #import "UINavigationController+StatusBarStyle.h"

 @implementation UINavigationController (StatusBarStyle)
 -(UIStatusBarStyle)preferredStatusBarStyle
 {
  return UIStatusBarStyleLightContent;
 }
 @end  

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.

转到项目->目标， 然后设置“状态栏样式”为“亮”。它使状态栏从启动屏幕变成白色。 然后在Info.plist中将“基于视图控制器的状态栏外观”设置为“NO”。

如果你的UIViewController在UINavigationController中，你必须设置BarStyle:

-[UINavigationBar setBarStyle:UIBarStyleBlack]

原始答案在这里

https://devforums.apple.com/message/844264#844264

你可以从info.plist:

1)“基于视图控制器的状态栏外观”设置为“NO”

2)“状态栏样式”设置为“UIStatusBarStyleLightContent”

done

简单地在应用程序委托:

[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];

在Swift 5中，遵循以下步骤:

在Info.plist中添加key UIViewControllerBasedStatusBarAppearance并将value设置为false 添加键UIStatusBarStyle和设置值UIStatusBarStyleLightContent