检查“未确定状态”＆＃39;并且＆＃39;许可被拒绝状态＆＃39; UILocalNotification

Question

此代码用于检查UILocalNotification权限

[[UIApplication sharedApplication] currentUserNotificationSettings];

和

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

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

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

会告诉permission

但我不知道如何检查not determine state和permission denied state，上述代码打印No Permission Granted。

Answer 1

对于UIUserNotificationType，只有四种

  

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

如果用户未授予权限或用户已关闭Allow Notifications选项，则您将在类型方法中获得UIUserNotificationTypeNone。无法准确确定用户关闭通知所采取的操作