Bison创作与开发笔记

工程工具与发布历史技术记录

iOS开发之检测设备锁屏

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。

作者：

原文署名 Bison，保留原发布时的内容。

"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

#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.");

    }

}