檢查 '無法確定狀態' 和UILocalNotification

Question

的 '權限被拒絕狀態' 這段代碼是檢查UILocalNotification權限

[[UIApplication sharedApplication] currentUserNotificationSettings]; 

而且

UIUserNotificationSettings *grantedSettings = [[UIApplication sharedApplication] currentUserNotificationSettings]; 

    NSMutableDictionary *localNotificationPermissions = [[NSMutableDictionary alloc]init]; 

     if (grantedSettings.types == UIUserNotificationTypeNone) { 
     NSLog(@"No Permission Granted"); 
     } else { 
     NSLog(@"Permission Granted"); 
    } 

會告訴有關permission

但我不知道如何檢查not determine state和permission denied state，上面的代碼打印No Permission Granted我兩種情況。

Answer 1

對於UIUserNotificationType，有隻有4種

1. UIUserNotificationTypeNone
2. UIUserNotificationTypeBadge
3. UIUserNotificationTypeSound
4. UIUserNotificationTypeAlert

如果用戶未授予權限或用戶關閉了Allow Notifications選項，那麼您將在類型方法中獲得UIUserNotificationTypeNone。無法確定用戶採取哪些措施來關閉通知