public void TestMethod2()
{
FeedViewModel feed = new FeedViewModel();
feed.Link = new Uri("http://www.shisujie.com/rss?containerid=31");
feed.Name = "奇葩史";
feed.RefreshAsync().Wait();
List <FeedViewModel> feeds = new List <FeedViewModel>();
feeds.Add(feed);
var withoutwait = feeds.SaveAsync();
feed.OfflineFeed();
}
private async void AddFeed_ButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
// Ensure the Feed or Site URL fields isn't empty. If a required field
// is empty, set args.Cancel = true to keep the dialog open.
if (string.IsNullOrEmpty(feedTextBox.Text))
{
args.Cancel = true;
errorTextBlock.Text = "Feed or Site URL is required.";
return;
}
// 检查URI是否非法，是否重复
try
{
Uri check_uri = new Uri(this.feedTextBox.Text);
foreach (var item in MainPage.Current.ViewModel.Feeds)
{
if (item.Source.Equals(check_uri))
{
args.Cancel = true;
errorTextBlock.Text = "You already add this Feed!";
return;
}
}
}
catch (UriFormatException)
{
args.Cancel = true;
errorTextBlock.Text = "FreeRSS could not find a feed at the specified location.";
return;
}
// 开始尝试添加新的feed
var newfeed = new FeedViewModel(new FeedInfo {
Source = this.feedTextBox.Text,
});
// 在refresh里面内嵌了添加的逻辑，如果Id为空的话，就会往MainPage.Current.ViewModel.Feeds.里面加新的feed
await newfeed.RefreshAsync();
if (newfeed.ErrorMessage != null)
{
args.Cancel = true;
errorTextBlock.Text = newfeed.ErrorMessage;
}
}
/// <summary>
/// 获取已订阅的rss源——并从网络获取源数据
/// </summary>
public static List <FeedViewModel> GetFeedsAsync()
{
var feeds = new List <FeedViewModel>();
if (!File.Exists(Path.Combine(RunTime.DataPath, "feeds.xml")))
{
return(new List <FeedViewModel>());
}
using (Stream fs = new FileStream(Path.Combine(RunTime.DataPath, "feeds.xml"), FileMode.Open))
{
DataContractSerializer dcs = new DataContractSerializer(typeof(IEnumerable <FeedSketch>));
FeedSketch[] feeddata = (FeedSketch[])dcs.ReadObject(fs);
foreach (var item in feeddata)
{
if (item.Link == null)
{
continue;
}
if (item.Name != null && File.Exists(Path.Combine(RunTime.OfflineDetailPath, item.Name + ".xml")))
{
using (Stream fs1 = new FileStream(Path.Combine(RunTime.OfflineDetailPath, item.Name + ".xml"), FileMode.Open))
{
DataContractSerializer dcs1 = new DataContractSerializer(typeof(FeedViewModel));
var tempa = (FeedViewModel)dcs1.ReadObject(fs1);
feeds.Add(tempa);
continue;
}
}
var feedvm = new FeedViewModel {
Name = item.Name, Link = new Uri(item.Link)
};
feeds.Add(feedvm);
var withoutAwait = feedvm.RefreshAsync();
}
return(feeds);
}
}