要在iOS7中隐藏状态栏，你需要2行代码

在应用程序中:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions写入 [[UIApplication sharedApplication] setStatusBarHidden:YES]; 在信息。加上这个 基于视图-控制器的状态栏外观= NO

从UIKit > UIApplication.h:

// Setting statusBarHidden does nothing if your application is using the default UIViewController-based status bar system.
@property(nonatomic,getter=isStatusBarHidden) BOOL statusBarHidden;
- (void)setStatusBarHidden:(BOOL)hidden withAnimation:(UIStatusBarAnimation)animation NS_AVAILABLE_IOS(3_2);

所以应该将基于视图控制器的状态栏外观设置为NO

iOS中隐藏状态栏的步骤 1. AppDelegate开放。M文件，添加应用程序。statusbar隐藏在didFinishLaunchingWithOptions方法中

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    application.statusBarHidden = YES;
    return YES;
    }

开放的信息。Plist和set

查看基于控制器的状态栏外观设置NO

在Info.plist中添加以下内容:

<key>UIStatusBarHidden</key>
<true/>
<key>UIViewControllerBasedStatusBarAppearance</key>
<false/>

要在iOS7中隐藏状态栏，你需要2行代码

在应用程序中:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions写入 [[UIApplication sharedApplication] setStatusBarHidden:YES]; 在信息。加上这个 基于视图-控制器的状态栏外观= NO

试试;

[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationNone];