/// <summary>
/// 刷新http数据
/// </summary>
public async void Update()
{
IsLoading = true;
LatestStories ls = await _api.GetLatestStories();
if (ls != null)
{
ls.Stories[0].Separator = true; //当天第一条
HomeStoriesIncrementalLoadingCollection c = new HomeStoriesIncrementalLoadingCollection(ls.Date);
ls.Stories.ToList().ForEach((s) =>
{
if (DataShareManager.Current.FavoriteList.Contains(s.ID))
{
s.Favorite = true;
}
if (DataShareManager.Current.ReadedList.Contains(s.ID))
{
s.Readed = true;
}
c.Add(s);
}
);
Stories = c;
Top_Stories = ls.Top_Stories;
Title = "首页";
c.DataLoaded += C_DataLoaded;
c.DataLoading += C_DataLoading;
}
IsLoading = false;
}
/// <summary>
/// 显示未读头条文章的toast
/// </summary>
/// <param name="t"></param>
private static void ShowToast(LatestStories t)
{
//将还未阅读的头条文章使用toast方式通知给用户
var toast_updater = ToastNotificationManager.CreateToastNotifier();
string xml = "<toast lang=\"zh-CN\" launch='111' >" +
"<visual>" +
"<binding template=\"ToastGeneric\">" +
"<text>知乎日报UWP 头条文章</text>" +
"<text>{0}</text>" +
"</binding>" +
"</visual>" +
"</toast>";
t.Top_Stories.ToList().ForEach(s =>
{
if (!DataShareManager.Current.ReadedList.Contains(s.ID) && !IsAlreadyToast(s.ID)) //未阅读
{
// 加载XML文档
XmlDocument doc = new XmlDocument();
doc.LoadXml(string.Format(xml, s.Title));
// 显示通知
ToastNotification notification = new ToastNotification(doc);
toast_updater.Show(notification);
}
});
}
/// <summary>
/// 更新未读头条文章的徽章badge
/// </summary>
/// <param name="t"></param>
private static void UpdateBadge(LatestStories t)
{
//将当天未读TOP文章更新到 badge
int un_readed = 0;
t.Top_Stories.ToList().ForEach(s => { if (!DataShareManager.Current.ReadedList.Contains(s.ID))
{
un_readed++;
}
});
var updater = BadgeUpdateManager.CreateBadgeUpdaterForApplication();
if (un_readed != 0)
{
var badgexml = new BadgeNumericNotificationContent((uint)un_readed);
var n = badgexml.CreateNotification();
n.ExpirationTime = DateTime.Now.AddDays(7);
updater.Update(n);
}
else
{
updater.Clear();
}
}
/// <summary>
/// Invoked when the bookmark button is clicked.
/// </summary>
/// <param name="obj">The object</param>
private void BookmarkButtonClicked(object obj)
{
if (obj is Model article)
{
LatestStories.Remove(article);
}
}
internal override void OnAppearing()
{
base.OnAppearing();
if (!LatestStories.Any() && _backgroundTaskHelper.BackgroundTaskIsCompleted())
{
_backgroundTaskHelper.StartBackgroundTask();
}
}
/// <summary>
/// 更新头条文章的磁贴tile
/// </summary>
/// <param name="t"></param>
private static void UpdateTile(LatestStories t)
{
//头5条 循环更新到tile中
List <string> list = t.Top_Stories.ToList().Select(s => s.Title).ToList();
List <string> list_image = t.Top_Stories.ToList().Select(s => s.Image).ToList();
var tileUpdater = TileUpdateManager.CreateTileUpdaterForApplication();
var plannedNotifications = tileUpdater.GetScheduledTileNotifications();
DateTime now = DateTime.Now;
DateTime updateTime = now;
DateTime planTill = now.AddMinutes(60); //每次制定1小时的tile更新计划
//删除还未执行的计划
if (plannedNotifications.Count > 0)
{
plannedNotifications.ToList().ForEach(s => tileUpdater.RemoveFromSchedule(s));
}
int index = 0;
int count = list.Count;
//制定tile更新的计划
for (var startPlanning = updateTime; startPlanning < planTill; startPlanning = startPlanning.AddSeconds(10))
{
try
{
var tilexml = TileContentFactory.CreateTileSquare150x150PeekImageAndText02();
tilexml.Image.Src = list_image[index % count];
tilexml.TextHeading.Text = "知乎日报UWP";
tilexml.TextBodyWrap.Text = list[index % count];
index++;
ScheduledTileNotification stn = new ScheduledTileNotification(tilexml.GetXml(), startPlanning);
stn.ExpirationTime = startPlanning.AddSeconds(8);
tileUpdater.AddToSchedule(stn);
}
catch
{
}
}
}
private async Task GetSponsors()
{
try
{
var talkDtOs = await _sponsorService.GetSponsorsAsync(CancellationToken.None);
LatestStories.Clear();
FeaturedStories.Clear();
foreach (var talkDtO in talkDtOs)
{
var sponsorViewModel = new SponsorViewModel(talkDtO);
LatestStories.Add(sponsorViewModel);
if (talkDtO.SponsorLevel != "Gold" && talkDtO.SponsorLevel != "Silver")
{
FeaturedStories.Add(sponsorViewModel);
}
}
}
catch (Exception e)
{
}
}
private async Task GetSpeakers()
{
try
{
var speakerDtos = (await _speakerService.GetSpeakersAsync()).ToList();
LatestStories.Clear();
FeaturedStories.Clear();
var featuredSpeakers = speakerDtos.OrderBy(x => Guid.NewGuid()).Take(5);
foreach (var speaker in featuredSpeakers)
{
featuredStories.Add(speaker);
}
foreach (var speaker in speakerDtos)
{
LatestStories.Add(speaker);
}
}
catch (Exception e)
{
}
}
