private async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try{
var httpClient = new HttpClient();
var feed = "http://feeds.hanselman.com/ScottHanselman";
var responseString = await httpClient.GetStringAsync(feed);
FeedItems.Clear();
var items = await ParseFeed(responseString);
foreach (var item in items)
{
FeedItems.Add(item);
}
} catch (Exception ex) {
var page = new ContentPage();
var result = page.DisplayAlert("Error", "Unable to load blog.", "OK", null);
}
IsBusy = false;
}
/// <summary>
/// Adds an item to the feed
/// </summary>
/// <param name="color"></param>
/// <param name="text"></param>
public void AddItem(Color color, string text)
{
var item = new MultiplayerFeedItem(color, text)
{
Parent = this,
Alignment = Alignment.BotLeft,
X = 10
};
FeedItems.Add(item);
if (FeedItems.Count == 6)
{
var first = FeedItems.First();
first.Destroy();
FeedItems.Remove(first);
}
for (var i = FeedItems.Count - 1; i >= 0; i--)
{
var feedItem = FeedItems[i];
feedItem.ClearAnimations();
feedItem.MoveToY(-22 * (FeedItems.Count - i - 1) - 11, Easing.OutQuint, 200);
}
}
public async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
var httpClient = new HttpClient();
try
{
var feed = "https://www.lebensmittelwarnung.de/bvl-lmw-de/opensaga/feed/alle/alle_bundeslaender.rss";
var responseString = await httpClient.GetStringAsync(feed);
FeedItems.Clear();
var items = await ParseFeed(responseString);
foreach (var item in items)
{
item.Image = item.ImageURL;
FeedItems.Add(item);
}
}
catch (Exception e)
{
}
IsBusy = false;
}
private async Task ExecuteLoadFilteredItemsCommand(string filter)
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
FeedItems.Clear();
var items = await _feedRepository.GetFilteredFeed(StaticData.RssFeed, filter);
foreach (var item in items)
{
FeedItems.Add(item);
}
}
catch (Exception ex)
{
var page = new ContentPage();
var result = page.DisplayAlert("Error", "Unable to load filtered podcast feed. " + ex.Message, "OK");
Insights.Report(ex, new Dictionary <string, string> {
{ "Error", "Unable to load filtered podcast feed." },
{ "Message", ex.Message },
{ "Result", result.ToString() }
});
}
IsBusy = false;
}
public async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
var httpClient = new HttpClient();
var feed = "http://planet.xamarin.com/feed/";
var responseString = await httpClient.GetStringAsync(feed);
FeedItems.Clear();
var items = await ParseFeed(responseString);
foreach (var item in items)
{
item.Image = Gravatar.GetUrl(item.Author);
FeedItems.Add(item);
}
IsBusy = false;
}
private async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
var error = false;
try
{
var httpClient = new HttpClient();
var feed = string.Empty;
switch (item.MenuType)
{
case MenuType.Hanselminutes:
feed = "http://feeds.podtrac.com/9dPm65vdpLL1";
break;
case MenuType.Ratchet:
feed = "http://feeds.feedburner.com/RatchetAndTheGeek?format=xml";
break;
case MenuType.DeveloperLife:
feed = "http://feeds.feedburner.com/ThisDevelopersLife?format=xml";
break;
}
var responseString = await httpClient.GetStringAsync(feed);
FeedItems.Clear();
var items = await ParseFeed(responseString);
foreach (var feedItem in items)
{
FeedItems.Add(feedItem);
}
}
catch
{
error = true;
}
if (error)
{
var page = new ContentPage();
var result = page.DisplayAlert("Error", "Unable to load podcast feed.", "OK");
}
IsBusy = false;
}
private async Task ExecuteLoadItemsCommandAsync()
{
if (IsBusy)
{
return;
}
IsBusy = true;
bool error = false;
try
{
HttpClient httpClient = new HttpClient();
string feed = string.Empty;
switch (item)
{
case MenuType.Playlist:
feed = @"https://software-enginnering-daily-api.herokuapp.com/api/posts";
break;
case MenuType.Podcast:
feed = @"https://software-enginnering-daily-api.herokuapp.com/api/posts";
break;
case MenuType.Twitter:
feed = @"https://feeds.podtrac.com/9dPm65vdpLL1";
break;
}
string responseString = await httpClient.GetStringAsync(feed);
FeedItems.Clear();
var items = await ParseFeed(responseString);
foreach (var feedItem in items)
{
FeedItems.Add(feedItem);
}
}
catch (Exception e)
{
error = true;
Debug.WriteLine(e.Message);
}
if (error)
{
ContentPage page = new ContentPage();
Task result = page.DisplayAlert("Error", $"Unable to load podcast feed.", "OK");
}
IsBusy = false;
}
private async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
IsNotBusy = false;
try
{
FeedItems.Clear();
var items = await _feedRepository.GetAll(StaticData.RssFeed);
foreach (var item in items)
{
FeedItems.Add(item);
}
LastFeedItem = FeedItems[0];
PodcastTitle = LastFeedItem.Title;
PodcastDate = LastFeedItem.PublishDate;
if (LastFeedItem.FileImage != null)
{
FileImage = LastFeedItem.FileImage;
}
else
{
FileImage = "empty_image.png";
}
}
catch (Exception ex)
{
var page = new ContentPage();
var result = page.DisplayAlert("Error", "Unable to load podcast feed. " + ex.Message, "OK");
Insights.Report(ex, new Dictionary <string, string> {
{ "Error", "Unable to load podcast feed." },
{ "Message", ex.Message },
{ "Result", result.ToString() }
});
}
IsBusy = false;
IsNotBusy = true;
}
private void LoadAction()
{
FeedItems?.Clear();
SelectedFeedItem = null;
using (XmlReader reader = XmlReader.Create(FeedURL))
{
SyndicationFeed feed = SyndicationFeed.Load(reader);
//Next step, getting Images from Comic feeds/etc.
foreach (SyndicationItem item in feed.Items)
{
FeedItems.Add(FeedItemModel.FromSyndicationItem(item));
}
}
OnPropertyChanged(nameof(FeedItems));
}
private async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
var error = false;
try
{
var responseString = string.Empty;
//TODO: get feed and
//using (var httpClient = new HttpClient())
//{
// var feed = "http://feeds.hanselman.com/ScottHanselman";
// responseString = await httpClient.GetStringAsync(feed);
//}
FeedItems.Clear();
var items = await ParseFeed(responseString);
foreach (var item in items)
{
FeedItems.Add(item);
}
}
catch
{
error = true;
}
if (error)
{
var page = new ContentPage();
await page.DisplayAlert("Error", "Unable to load blog.", "OK");
}
IsBusy = false;
}
private async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
var error = false;
try
{
var responseString = string.Empty;
using (var httpClient = new HttpClient())
{
var feed = "http://lawebdelprogramador.cl/bloglawebdelprogramador/feed/";
responseString = await httpClient.GetStringAsync(feed);
}
FeedItems.Clear();
var items = await ParseFeed(responseString);
foreach (var item in items)
{
FeedItems.Add(item);
}
}
catch
{
error = true;
}
if (error)
{
var page = new ContentPage();
await page.DisplayAlert("Error", "No es posible cargar el blog en este momento", "OK");
}
IsBusy = false;
}
private async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
var error = false;
try
{
var responseString = string.Empty;
using (var httpClient = new HttpClient())
{
var feed = "https://bwired.ca/blog/feed";
responseString = await httpClient.GetStringAsync(feed);
}
FeedItems.Clear();
var items = await ParseFeed(responseString);
foreach (var item in items)
{
FeedItems.Add(item);
}
}
catch
{
error = true;
}
if (error)
{
var page = new ContentPage();
await page.DisplayAlert("Error", "Unable to load blog.", "OK");
}
IsBusy = false;
}
/// <summary>
/// Adds feedItems to the list of feedItems.
/// All feedItems are inserted at the correct date (since the list is sorted by date)
/// </summary>
/// <param name="feedItems">List of feedItems to be added</param>
private void AddFeedItems(List <EasyNewsFeedItem> feedItems)
{
var counter = 0;
foreach (var article in feedItems)
{
// New Article is older than the oldest article in the list, append article to end
if (counter >= FeedItems.Count)
{
FeedItems.Add(article);
}
// Insert new Article somewhere in the middle of the array, we don't know where it is
else
{
// Iterate through Articles until we found the right date to insert our new article
while (counter < FeedItems.Count &&
FeedItems[counter].PublishingDate > article.PublishingDate)
{
counter++;
}
// All articles we searched were newer than our article => Append the article
if (counter == FeedItems.Count)
{
FeedItems.Add(article);
}
else
{
// Found the right date, insert the article, redo with the next one
FeedItems.Insert(counter, article);
}
}
}
// ReSharper Disable All
OnPropertyChanged("HasFeedItems");
// ReSharper Restore All
}
private async Task _Refresh()
{
if (!IsNeedRefresh) { return; }
Debug.WriteLine($"{Label} starting update feed.");
var updateTime = DateTime.Now;
var latestItems = new List<FeedItem>();
foreach (var feedSource in _FeedSourceList)
{
var items = await feedSource.GetLatestItems(HohoemaApp);
foreach (var item in items)
{
latestItems.Add(item);
}
}
var latestOrderedItems = latestItems
.OrderByDescending(x => x.SubmitDate)
.Take(MaxFeedItemsCount)
.ToList();
foreach (var item in latestOrderedItems)
{
item.CheckedTime = updateTime;
}
var exceptItems = latestOrderedItems.Except(FeedItems, FeedItemComparer.Default).ToList();
var addedItems = exceptItems.Where(x => x.CheckedTime == updateTime);
var removedItems = FeedItems
.Except(latestOrderedItems, FeedItemComparer.Default)
.Where(x => x.CheckedTime != updateTime)
.ToList();
foreach (var addItem in addedItems)
{
addItem.IsUnread = true;
// 投稿日時が初期化されていない場合はThumbnailInfoから拾ってくる
// ユーザー動画取得の場合に投稿時刻が取れないことが原因
// 追加されたアイテムだけのThumbnailを取得することで無駄な処理を減らす
if (addItem.SubmitDate == default(DateTime))
{
try
{
var nicoVideo = await HohoemaApp.MediaManager.GetNicoVideoAsync(addItem.VideoId);
addItem.SubmitDate = nicoVideo.PostedAt;
}
catch (Exception ex)
{
Debug.Fail("UserFeedItem 更新中、NicoVideoオブジェクトの取得に失敗しました。", ex.Message);
}
}
FeedItems.Add(addItem);
}
foreach (var removedItem in removedItems)
{
var item = FeedItems.SingleOrDefault(x => x.VideoId == removedItem.VideoId);
if (item != null)
{
item.IsDeleted = true;
FeedItems.Remove(item);
}
}
FeedItems.Sort(FeedItemComparer.Default);
UpdateTime = updateTime;
await FeedManager.SaveOne(this);
Completed?.Invoke(this);
IsNeedRefresh = false;
Debug.WriteLine($"{Label} update feed done.");
}
// RSSフィードを取得します。(非同期メソッド)
private async Task GetRSSAsync(String i_feedUrl)
{
Boolean result = false;
try
{
var client = new HttpClient();
RssFeed latest;
using (var reader = new StringReader(await client.GetStringAsync(i_feedUrl)))
{
var desirializer = new XmlSerializer(typeof(RssFeed));
latest = desirializer.Deserialize(reader) as RssFeed;
}
IsProgress = false;
if (latest == null)
{
throw new Exception("取得したフィードがnull");
}
// RSSフィードの配信元情報を取得します。
this.FeedTitle = latest.Channel.Title;
this.FeedDescription = Regex.Replace(latest.Channel.Description, Define.PATTERN_STR, String.Empty, RegexOptions.Singleline);
this.FeedLastUpdatedTime = latest.Channel.LastBuildDate;
// RSSフィードのコンテンツを取得します。
foreach (var item in latest.Channel.Items)
{
// コンテンツ取得
RSSContent content = new RSSContent();
content.Title = item.Title;
content.Description = Regex.Replace(item.Description, Define.PATTERN_STR, String.Empty, RegexOptions.Singleline);
content.PubDate = item.PubDate;
content.Link = item.Link;
// サムネイル画像取得
var imgMatch = Regex.Match(item.Description, Define.PATTERN_IMGTAG, RegexOptions.Singleline);
if (imgMatch.Success)
{
content.Thumbnail = ImageSource.FromUri(new Uri(imgMatch.Groups["uri"].Value));
}
Device.BeginInvokeOnMainThread(() => FeedItems.Add(content));
//FeedItems.Add(new RSSContent
//{
// Title = item.Title,
// Description = Regex.Replace(item.Description, Define.PATTERN_STR, String.Empty, RegexOptions.Singleline),
// PubDate = item.PubDate,
// Link = item.Link
//});
}
// RSSフィードの取得が完了したことをView側に通知します。
// ※通知の引数にRSSフィード取得の結果を渡す
GetRSSCompleted?.Invoke(this, new TaskResultEventArgs(result));
}
catch (Exception ex)
{
// RSSフィードの取得中に例外が発生したら、失敗フラグを立てます。
result = false;
}
}
public void addFeedItem(FeedItem newItem)
{
FeedItems.Add(newItem);
}