/// <summary> /// 生成时间线卡片 /// </summary> /// <param name="feed"></param> /// <returns></returns> private async Task GenerateActivityAsync(RssSchema feed) { try { UserActivityChannel channel = UserActivityChannel.GetDefault(); UserActivity userActivity = await channel.GetOrCreateUserActivityAsync(feed.InternalID); userActivity.VisualElements.DisplayText = feed.Title; userActivity.VisualElements.Content = AdaptiveCardBuilder.CreateAdaptiveCardFromJson(await AppTools.CreateAdaptiveJson(feed)); //Populate required properties string url = $"richasy-rss://feed?id={WebUtility.UrlEncode(feed.InternalID)}&summary={WebUtility.UrlEncode(feed.Summary)}&date={WebUtility.UrlEncode(feed.PublishDate.ToString())}&img={WebUtility.UrlEncode(feed.ImageUrl)}&url={WebUtility.UrlDecode(feed.FeedUrl)}&title={WebUtility.UrlEncode(feed.Title)}&content={WebUtility.UrlEncode(feed.Content)}"; userActivity.ActivationUri = new Uri(url); await userActivity.SaveAsync(); //save the new metadata //Dispose of any current UserActivitySession, and create a new one. _currentActivity?.Dispose(); _currentActivity = userActivity.CreateSession(); } catch (Exception) { return; } }