Xamarin 形成 iOS 本地通知按钮

Posted 2023-03-15

【中文标题】Xamarin 形成 iOS 本地通知按钮

【英文标题】：Xamarin forms iOS local notification buttons

【发布时间】：2017-10-19 12:59:21

【问题描述】：

我需要在 ios 的本地通知中显示操作按钮。我收到通知，但没有操作按钮。你能指导我我做错了什么吗？ 这是我的代码：

        var category = new UIMutableUserNotificationCategory();

        var okAction = new UIMutableUserNotificationAction
        
            Identifier = "ok",
            Destructive = false,
            Title = "OK",
            ActivationMode = UIUserNotificationActivationMode.Background,
            AuthenticationRequired = false
        ;

        var delayAction = new UIMutableUserNotificationAction
        
            Identifier = "delay",
            Destructive = false,
            Title = "Отложить",
            ActivationMode = UIUserNotificationActivationMode.Background,
            AuthenticationRequired = false
        ;

        var categoryIdentifier = "pills.category";
        category.Identifier = categoryIdentifier;
        category.SetActions(new UIUserNotificationAction[]  delayAction, okAction , UIUserNotificationActionContext.Minimal);
        category.SetActions(new UIUserNotificationAction[]  delayAction, okAction , UIUserNotificationActionContext.Default);

        var categories = new NSSet(new NSObject[] category);

        var notificationSettings = UIUserNotificationSettings.GetSettingsForTypes(
            UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound, categories
        );
        UIApplication.SharedApplication.RegisterUserNotificationSettings(notificationSettings);


        var next = new TimeSpan(start.Ticks);

        var count = Math.Round(24.0 / interval.TotalHours);

        for (int i = 0; i < count; i++)
        
            var notification = new UILocalNotification
            
                AlertAction = title,
                AlertBody = text,
                SoundName = UILocalNotification.DefaultSoundName,
                ApplicationIconBadgeNumber = 0,
                FireDate = NSDate.FromTimeIntervalSinceNow(next.TotalSeconds),
                RepeatInterval = NSCalendarUnit.Day,
                Category = categoryIdentifier
            ;
            UIApplication.SharedApplication.ScheduleLocalNotification(notification);

            next = next.Add(interval);
        
    

附：我正在使用 iOS 11 模拟器。

【参考方案1】：

您需要向下滑动才能看到按钮。

以下动图演示如何在Background和Lock Screen中操作