iOS监听手机锁屏状态
iPhone的锁屏监测分为两种方式监听：
1.程序在前台，这种比较简单。直接使用Darwin层的通知就可以了：
#import#defineNotificationLockCFSTR("com.apple.springboard.lockcomplete") #defineNotificationChangeCFSTR("com.apple.springboard.lockstate") #defineNotificationPwdUICFSTR("com.apple.springboard.hasBlankedScreen") staticvoidscreenLockStateChanged(CFNotificationCenterRefcenter,void*observer,CFStringRefname,constvoid*object,CFDictionaryRefuserInfo) { NSString*lockstate=(__bridgeNSString*)name; if([lockstateisEqualToString:(__bridgeNSString*)NotificationLock]){ NSLog(@"locked."); }else{ NSLog(@"lockstatechanged."); } } -(BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions { //Overridepointforcustomizationafterapplicationlaunch. CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(),NULL,screenLockStateChanged,NotificationLock,NULL,CFNotificationSuspensionBehaviorDeliverImmediately); CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(),NULL,screenLockStateChanged,NotificationChange,NULL,CFNotificationSuspensionBehaviorDeliverImmediately); //setScreenStateCb(); returnYES; }
2.第二种是程序退后台后，这时再锁屏就收不到上面的那个通知了，需要另外一种方式,以循环的方式一直来检测是否是锁屏状态，会消耗性能并可能被苹果挂起(有可能没作用)；
staticvoidsetScreenStateCb()
{
uint64_tlocked;
__blockinttoken=0;
notify_register_dispatch("com.apple.springboard.lockstate",&token,dispatch_get_main_queue(),^(intt){
});
notify_get_state(token,&locked);
NSLog(@"%d",(int)locked);
}
-(void)applicationDidEnterBackground:(UIApplication*)application
{
while(YES){
setScreenStateCb();
sleep(1);
}
}
以上所述是小编给大家介绍的iOS监听手机锁屏状态，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对毛票票网站的支持！