# iOS开发之检测设备锁屏

语言：zh-CN
原文：[iOS开发之检测设备锁屏](<https://allluckly.cn/iOS%E5%BC%80%E5%8F%91%E4%B9%8B%E6%A3%80%E6%B5%8B%E8%AE%BE%E5%A4%87%E9%94%81%E5%B1%8F>)
中文：[中文 HTML](<https://allluckly.cn/iOS%E5%BC%80%E5%8F%91%E4%B9%8B%E6%A3%80%E6%B5%8B%E8%AE%BE%E5%A4%87%E9%94%81%E5%B1%8F>)
English: [English HTML](<https://allluckly.cn/en/journal/2015-07-31-detecting-device-locking-in-an-ios-app/>)
发布于: 2015-07-31T00:00:00+08:00
内容更新于: 2015-07-31T00:00:00+08:00
署名：[Bison](<https://allluckly.cn/about/>)

针对嵌入游戏在锁屏时出现异常的场景，记录监听 SpringBoard 锁屏通知的代码与回调处理。文章保留当时的排障思路，接口使用条件需要单独核实。

原文署名 Bison，保留原发布时的内容。

**阅读前** 这是 2015–2017 年间的技术记录，本次整理未重新运行验证示例。原文发表于 2015 年，示例监听 com.apple.springboard 锁屏通知。

> "身体是革命的本钱，多锻炼才是王道" Bison

最近的项目里面有镶嵌的游戏，一进入锁屏app就会崩溃。 寻求解决之策，找了很久。

代码如下

核心代码

```css
#define NotificationLock CFSTR("com.apple.springboard.lockcomplete")

#define NotificationChange CFSTR("com.apple.springboard.lockstate")

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

    
    [self lookLockScreen];

    return YES;
    
}

- (void)lookLockScreen
{
    CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(), NULL, screenLockStateChanged, NotificationLock, NULL, CFNotificationSuspensionBehaviorDeliverImmediately);

    CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(), NULL, screenLockStateChanged, NotificationChange, NULL, CFNotificationSuspensionBehaviorDeliverImmediately);


}

static void screenLockStateChanged(CFNotificationCenterRef center,void* observer,CFStringRef name,const void* object,CFDictionaryRef userInfo)

{

    NSString* lockstate = (__bridge NSString*)name;

    if ([lockstate isEqualToString:(__bridge  NSString*)NotificationLock]) {

        //锁屏
        NSLog(@"locked.");

    } else {
        //锁屏状态改变
        NSLog(@"lock state changed.");

    }

}
```