iOS 判斷是否開(kāi)啟定位

+ (BOOL)isLocationServiceOpen {
   if ([ CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied) {
       return NO; 
    } else 
       return YES;
}

iOS 判斷是否允許消息通知

- ios10以及之后版本
+ (void)isMessageNotificationServiceOpenBlock:(void (^)(BOOL))block{
    
    if ([[UIDevice currentDevice].systemVersion doubleValue] >= 10.0) {
        
        [[UNUserNotificationCenter currentNotificationCenter] getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
            
            NSLog(@"setting = %@",settings);
            
            if(settings.authorizationStatus == UNAuthorizationStatusAuthorized){
                
                if (block) {
                    
                    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"沒(méi)有打開(kāi)通知權(quán)限" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles:@"確定", @"取消", nil];
                    
                    alertView.delegate = self;
                    
                    [alertView show];
                    
                    block(true);
                }
        
            } else {
                
                if (block) {
                    block(false);
                }
            }
        }];
        //        return true;
    } else if (SYSTEM_VERSION_GREATER_THAN(@"8.0") {
        
        if (block) {
            block([[UIApplication sharedApplication] isRegisteredForRemoteNotifications]);
        }
        
    } else {
        
        if (block) {
            block(UIRemoteNotificationTypeNone != [[UIApplication sharedApplication] enabledRemoteNotificationTypes]);
        }
    }
}

- ios10之前版本
+ (BOOL)isMessageNotificationServiceOpen { 
       if (SYSTEM_VERSION_GREATER_THAN(@"8.0")) {
              BOOL pushEnabled;
// 設(shè)置里的通知總開(kāi)關(guān)是否打開(kāi)
              BOOL settingEnabled = [[UIApplication sharedApplication] isRegisteredForRemoteNotifications];
// 設(shè)置里的通知各子項(xiàng)是否都打開(kāi)
              BOOL subsettingEnabled = [[UIApplication sharedApplication] currentUserNotificationSettings].types != UIUserNotificationTypeNone;pushEnabled = settingEnabled && subsettingEnabled;
 return pushEnabled; 
      } else { 
             return UIRemoteNotificationTypeNone != [[UIApplication sharedApplication] enabledRemoteNotificationTypes]; 
       }
}

iOS 跳轉(zhuǎn)系統(tǒng)設(shè)置打開(kāi)定位頁(yè)面

if (SYSTEM_VERSION_GREATER_THAN(@"8.0")) { 
        NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString]; 
        if ([[UIApplication sharedApplication] canOpenURL:url]) {
                    [[UIApplication sharedApplication] openURL:url]; 
         } 
 } else {
         [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"]]; 
 }

iOS 跳轉(zhuǎn)系統(tǒng)設(shè)置打開(kāi)消息頁(yè)面

if (SYSTEM_VERSION_GREATER_THAN(@"8.0")) { 
     NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString]; 
     if ([[UIApplication sharedApplication] canOpenURL:url]) {
           [[UIApplication sharedApplication] openURL:url]; 
      }
 } else { 
      [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=NOTIFICATIONS_ID"]]; 
}