我使用Plugin.LocalNotification版本10.0.2创建新项目
卡马林.表格版本5.0.0.2515
MainPage中的此代码

async void Button_Clicked(System.Object sender, System.EventArgs e)
        {
            try
            {
                var notification = new NotificationRequest
                {
                    NotificationId = 100,
                    Title = "Test",
                    Description = "Test Description",
                    ReturningData = "Dummy data", // Returning data when tapped on notification.
                    Schedule =
    {
        NotifyTime = DateTime.Now.AddSeconds(5) // Used for Scheduling local notification, if not specified notification will show immediately.
    }
                };
                await Plugin.LocalNotification.LocalNotificationCenter.Current.Show(notification);
            }
            catch(Exception ex)
            {

未发现异常且未显示通知，问题是什么？