detect lockstate and displaystate

- (void)registerAppforDetectLockState {
    
    int notify_token;
    notify_register_dispatch("com.apple.springboard.lockstate", &notify_token,dispatch_get_main_queue(), ^(int token) {
        uint64_t state = UINT64_MAX;
        notify_get_state(token, &state);
        if(state == 0) {
            NSLog(@"unlock device");
        } else {
            NSLog(@"lock device");
        }
        
        NSLog(@"com.apple.springboard.lockstate = %llu", state);
//        UILocalNotification *notification = [[UILocalNotification alloc]init];
//        notification.repeatInterval = NSCalendarUnitDay;
//        [notification setAlertBody:@"Hello world!! I come becoz you lock/unlock your device :)"];
//        notification.alertAction = @"View";
//        notification.alertAction = @"Yes";
//        [notification setFireDate:[NSDate dateWithTimeIntervalSinceNow:1]];
//        notification.soundName = UILocalNotificationDefaultSoundName;
//        [notification setTimeZone:[NSTimeZone  defaultTimeZone]];
//        
//        [[UIApplication sharedApplication] presentLocalNotificationNow:notification];
        
    });
}

需要

#import <notify.h>

另外三个系统通知

"com.apple.iokit.hid.displayStatus"
"com.apple.springboard.hasBlankedScreen"
"com.apple.springboard.lockcomplete"