public CollectionViewRssPage()
{
InitializeComponent();
rssItem = new RSSFeedItem();
viewModel = new RssItemViewModel();
BindingContext = viewModel;
}
public MainPageCustom()
{
InitializeComponent();
rssItem = new RSSFeedItem();
var setting = new SettingPage();
var settingTabbar = new SettingTabView();
viewModel.Url = "https://cdn.24h.com.vn/upload/rss/trangchu24h.rss";
viewModel.LoadRssFeed();
BindingContext = viewModel;
setting.UpdateStyleItem();
settingTabbar.UpdateSettingItem();
if (Xamarin.Forms.Application.Current.Properties.ContainsKey("TabItem"))
{
if (Convert.ToBoolean(Xamarin.Forms.Application.Current.Properties["TabItem"].ToString()))
{
TabBar.IsVisible = false;
}
else
{
TabBar.IsVisible = true;
}
}
TabBar.OnTabBarClicked += TabBar_OnTabItemClicked;
}
public DetailViewController(RSSFeedItem item)
: base(UITableViewStyle.Grouped, null, true)
{
var attributes = new NSAttributedStringDocumentAttributes();
attributes.DocumentType = NSDocumentType.HTML;
attributes.StringEncoding = NSStringEncoding.UTF8;
var error = new NSError();
var htmlString = new NSAttributedString(item.Description, attributes, ref error);
Root = new RootElement(item.Title)
{
new Section {
new StringElement(item.Author),
new StringElement(item.PublishDate),
new StyledMultilineElement(htmlString),
new HtmlElement("Full Article", item.Link)
}
};
NavigationItem.RightBarButtonItem = new UIBarButtonItem(UIBarButtonSystemItem.Action, async delegate
{
var message = item.Title + " " + item.Link + " #PlanetXamarin";
var social = new UIActivityViewController(new NSObject[] { new NSString(message) },
new UIActivity[] { new UIActivity() });
PresentViewController(social, true, null);
});
}
void BeginDownloadingImage(RSSFeedItem app, NSIndexPath path)
{
// Queue the image to be downloaded. This task will execute
// as soon as the existing ones have finished.
byte[] data = null;
DownloadTask = DownloadTask.ContinueWith(prevTask => {
try {
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
using (var c = new GzipWebClient())
data = c.DownloadData(app.Image);
} finally {
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
}
});
// When the download task is finished, queue another task to update the UI.
// Note that this task will run only if the download is successful and it
// uses the CurrentSyncronisationContext, which on MonoTouch causes the task
// to be run on the main UI thread. This allows us to safely access the UI.
DownloadTask = DownloadTask.ContinueWith(t => {
// Load the image from the byte array.
app.TheImage = UIImage.LoadFromData(NSData.FromArray(data));
// Retrieve the cell which corresponds to the current App. If the cell is null, it means the user
// has already scrolled that app off-screen.
var cell = TableView.VisibleCells.Where(c => c.Tag == viewModel.FeedItems.IndexOf(app)).FirstOrDefault();
if (cell != null)
{
cell.ImageView.Image = app.TheImage;
}
}, CancellationToken.None, TaskContinuationOptions.OnlyOnRanToCompletion, TaskScheduler.FromCurrentSynchronizationContext());
}
public RssFeedItemPage()
{
InitializeComponent();
rssItem = new RSSFeedItem();
viewModel = new RssItemViewModel();
viewModel.Url = "https://tinhte.vn/rss/";
//viewModel.Url = Url;
BindingContext = viewModel;
}
protected virtual void AddFeedToOutput(HtmlTextWriter output, RSSFeedItem feed)
{
output.AddAttribute(HtmlTextWriterAttribute.Rel, "alternate");
output.AddAttribute(HtmlTextWriterAttribute.Title, feed.Title.Text);
output.AddAttribute(HtmlTextWriterAttribute.Type, "application/rss+xml");
output.AddAttribute(HtmlTextWriterAttribute.Href, feed.Url);
output.RenderBeginTag(HtmlTextWriterTag.Link);
output.RenderEndTag();
}
public MainPageCustom()
{
InitializeComponent();
rssItem = new RSSFeedItem();
BindingContext = viewModel;
if (!string.IsNullOrEmpty(Url))
{
viewModel.Url = Url;
viewModel.LoadRssFeed();
}
TabBar.OnTabBarClicked += TabBar_OnTabItemClicked;
}
public MainPageCustom()
{
InitializeComponent();
rssItem = new RSSFeedItem();
var setting = new SettingPage();
viewModel.Url = "https://cdn.24h.com.vn/upload/rss/trangchu24h.rss";
viewModel.LoadRssFeed();
BindingContext = viewModel;
setting.UpdateStyleItem();
viewModel.heightImages = 40;
TabBar.OnTabBarClicked += TabBar_OnTabItemClicked;
}
private string _EventRssToString()
{
try
{
int count = 0;
string xmlString = String.Empty;
if (this._rss == null)
{
return(String.Empty);
}
lock (this._lockRss)
{
foreach (DataRow row in this._data.Rows)
{
RSSFeedItem itm = this._RssItemAdd(row, (count++), this._parent._ci);
if (itm != null)
{
this._rss.Add(itm);
}
}
xmlString = this._rss.WriteString(this._parent._ilog);
if (!string.IsNullOrWhiteSpace(xmlString))
{
return(xmlString);
}
}
}
#if DEBUG
catch (Exception e)
{
if (this._parent.isLogEnable)
{
this._parent._ilog.LogError(
string.Format(
Properties.Resources.CoCNotifyProcessError,
Properties.Resources.CoCNotifyDataRss,
Properties.Resources.CoCNotifyDataOtherError,
e.Message
)
);
}
#else
catch (Exception)
{
#endif
}
return(String.Empty);
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.Detail);
webView = FindViewById <WebView>(Resource.Id.webview);
var id = Intent.GetIntExtra("id", 0);
feedItem = MasterActivity.ViewModel.GetFeedItem(id);
webView.LoadData(feedItem.Description, "text/html", "charset=UTF-8");
webView.Settings.JavaScriptEnabled = true;
ActionBar.Title = feedItem.Title;
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
var idString = string.Empty;
//parse out id and get feed item from cache
if (NavigationContext.QueryString.TryGetValue("id", out idString))
{
var id = 0;
int.TryParse(idString, out id);
item = MasterPage.ViewModel.GetFeedItem(id);
DataContext = item;
var fullHtml = WebBrowserHelper.WrapHtml(item.Description, Browser.ActualWidth);
Browser.NavigateToString(fullHtml);
}
}
void ShowRSSFeedItemDetails(object sender, EventArgs e)
{
if (lstBoxFeed.Items.Count < 1)
{
return;
}
RSSFeed rssFeed = GetSelectedFeed();
int selectedIndex = lstBoxFeedItems.SelectedIndex;
RSSFeedItem rssFeedItem = _currentRssFeedItems[selectedIndex];
lstBoxFeedItems.Items[selectedIndex] = rssFeedItem.Title;
rssFeed.ActionIdentifiers.Add(rssFeedItem.Id);
rssFeed.Save();
wbRssFeed.DocumentText = rssFeedItem.GetHtmlRepresentation();
}
private string _EventRssToString(CoCNotifyHost host)
{
int count = 0;
stRSS.RSSWriter rssRoot = null;
CultureInfo ci = stNet.stWebServerUtil.HttpUtil.GetHttpClientLanguage(host.Language, this._parent._ci);
try
{
if ((rssRoot = this._RssRootAdd(ci)) == null)
{
throw new ArgumentNullException();
}
foreach (DataRow row in this._data.Rows)
{
RSSFeedItem itm = this._RssItemAdd(row, (count++), ci);
if (itm != null)
{
rssRoot.Add(itm);
}
}
return(rssRoot.WriteString(this._parent._ilog));
}
#if DEBUG
catch (Exception e)
{
if (this._parent.isLogEnable)
{
this._parent._ilog.LogError(
string.Format(
Properties.Resources.CoCNotifyProcessError,
Properties.Resources.CoCNotifyDataRss,
Properties.Resources.CoCNotifyDataOtherError,
e.Message
)
);
}
#else
catch (Exception)
{
#endif
}
return(this._rssString);
}
void OnListViewItemSelected(object sender, SelectedItemChangedEventArgs args)
{
if (args.SelectedItem != null)
{
// Deselect item.
((Xamarin.Forms.ListView)sender).SelectedItem = null;
// Set WebView source to RSS item
rssItem = (RSSFeedItem)args.SelectedItem;
// For iOS 9, a NSAppTransportSecurity key was added to
// Info.plist to allow accesses to EarthObservatory.nasa.gov sites.
webView.Source = rssItem.Link;
// Hide and make visible.
rssLayout.IsVisible = false;
webLayout.IsVisible = true;
}
}
public static List <RSSFeedItem> GetRSSFeedItems(string rssFeedXml)
{
List <RSSFeedItem> rssFeedItems = new List <RSSFeedItem>();
TextReader tr = new StringReader(rssFeedXml);
XmlReader xmlReader = XmlReader.Create(tr);
SyndicationFeed feed = SyndicationFeed.Load(xmlReader);
foreach (SyndicationItem item in feed.Items)
{
string title = item.Title.Text;
string summary = item.Summary.Text;
List <SyndicationLink> links = item.Links.ToList();
string id = item.Id;
RSSFeedItem rssFeedItem = new RSSFeedItem(title, summary, id, links);
rssFeedItems.Add(rssFeedItem);
}
return(rssFeedItems);
}
private async void OnListViewItemSelected(object sender, SelectedItemChangedEventArgs args)
{
if (args.SelectedItem != null)
{
// Deselect item.
((Xamarin.Forms.ListView)sender).SelectedItem = null;
// Set WebView source to RSS item
rssItem = (RSSFeedItem)args.SelectedItem;
// For iOS 9, a NSAppTransportSecurity key was added to
// Info.plist to allow accesses to EarthObservatory.nasa.gov sites.
//webView.Source = rssItem.Link;
await Navigation.PushAsync(new RssDetailsPage(rssItem.Link));
// Hide and make visible.
//ShowData.IsVisible = false;
//webLayout.IsVisible = true;
}
}
public DetailViewController(RSSFeedItem item)
: base(UITableViewStyle.Grouped, null, true)
{
var attributes = new NSAttributedStringDocumentAttributes();
attributes.DocumentType = NSDocumentType.HTML;
attributes.StringEncoding = NSStringEncoding.UTF8;
var error = new NSError();
var htmlString = new NSAttributedString(item.Description, attributes, ref error);
Root = new RootElement(item.Title)
{
new Section {
new StringElement(item.Author),
new StringElement(item.PublishDate),
new StyledMultilineElement(htmlString),
new HtmlElement("Full Article", item.Link)
}
};
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.Detail);
webView = FindViewById <WebView>(Resource.Id.webview);
var id = Intent.GetIntExtra("id", 0);
feedItem = MasterActivity.ViewModel.GetFeedItem(id);
webView.LoadData(feedItem.Description, "text/html", "charset=UTF-8");
webView.Settings.JavaScriptEnabled = true;
ActionBar.Title = feedItem.Title;
readFullButton = FindViewById <Button>(Resource.Id.button_read_full);
readFullButton.Click += (sender, args) =>
{
webView.LoadUrl(feedItem.Link);
readFullButton.Visibility = ViewStates.Gone;
};
}
private List <RSSFeedItem> GetRSSFeedItems(List <string> feedList)
{
var RSSItems = new List <RSSFeedItem>();
foreach (var url in feedList)
{
XmlReader reader = XmlReader.Create(url);
SyndicationFeed feed = SyndicationFeed.Load(reader);
reader.Close();
foreach (var item in feed.Items)
{
var RSSItem = new RSSFeedItem();
RSSItem.ImageSrc = feed.ImageUrl;
RSSItem.ItemSrc = item.Links.FirstOrDefault().Uri;
RSSItem.PublishDate = item.PublishDate.DateTime;
RSSItem.Title = item.Title.Text;
RSSItem.Description = item.Summary.Text;
RSSItems.Add(RSSItem);
}
}
return(RSSItems);
}
public ItemDetailViewModel(RSSFeedItem item = null)
{
Title = item?.Link;
RssItem = item;
}
public void LoadRssFeed()
{
if (!string.IsNullOrEmpty(Url))
{
WebRequest request = WebRequest.Create(Url);
request.BeginGetResponse((args) =>
{
try
{
// Download XML.
Stream stream = request.EndGetResponse(args).GetResponseStream();
StreamReader reader = new StreamReader(stream);
string xml = reader.ReadToEnd();
// Parse XML to extract data from RSS feed.
XDocument doc = XDocument.Parse(xml);
XElement rss = doc.Element(XName.Get("rss"));
XElement channel = rss.Element(XName.Get("channel"));
// Set Title property.
Title = channel.Element(XName.Get("title")).Value;
// Set Items property.
List<RSSFeedItem> list =
channel.Elements(XName.Get("item")).Select((XElement element) =>
{
var desciption = element.Element(XName.Get("description"));
//var image = desciption.Element(XName.Get("img")).Attribute("src").Value.ToString();
var result = new RSSFeedItem();
result.Title = element.Element(XName.Get("title")).Value;
result.Description = desciption.Value;
result.Link = element.Element(XName.Get("link")).Value;
result.PubDate = element.Element(XName.Get("pubDate")).Value;
#region get images form description
Regex regx = new Regex("http(s?)://([\\w+?\\.\\w+])+([a-zA-Z0-9\\~\\!\\@\\#\\$\\%\\^\\&\\*\\(\\)_\\-\\=\\+\\\\\\/\\?\\.\\:\\;\\'\\,]*)?.(?:jpg|bmp|gif|png)", RegexOptions.IgnoreCase);
MatchCollection mactches = regx.Matches(desciption.ToString());
if (mactches.Count > 0)
{
foreach (var urlImage in mactches)
{
result.Thumbnail = urlImage.ToString();
}
}
else
{
result.Thumbnail = "";
}
#endregion
return result;
}).ToList();
var lstItem = list.OrderByDescending(s => s.PubDateTime).ToList();
try
{
if (!string.IsNullOrEmpty(searchText))
{
Items = lstItem.Where(s => s.Title.ToLower().Contains(searchText.ToLower())).ToList().ToObservableCollection();
}
else
{
Items = lstItem.ToObservableCollection();
}
}
catch (Exception ex)
{
throw ex;
}
// Set IsRefreshing to false to stop the 'wait' icon.
IsRefreshing = false;
}
catch (Exception)
{
Device.BeginInvokeOnMainThread(() =>
{
Application.Current.MainPage.DisplayAlert("Server Error", "Not Connected", "OK");
});
}
}, null);
}
else
{
Device.BeginInvokeOnMainThread(() =>
{
Application.Current.MainPage.DisplayAlert("Error", "Please check url no empty", "OK");
});
}
}
public RssTriThucPage()
{
InitializeComponent();
rssItem = new RSSFeedItem();
BindingContext = viewModel;
}
