public PhotoStream(string title, string url)
{
this.Title = title;
this.PhotoStreamUrl = url;
StreamPhotos = new IncrementalSource<RootObject, Photo>(PhotoStreamUrl, RootObjectResponse);
DataLoaded = new ManualResetEvent(false);
LoadPhotos();
}
private async void OnItemsSourceChanged(DependencyObject sender, DependencyProperty dp)
{
if (IncrementalSource != null && IncrementalSource.HasMoreItems && !_isAlreadyLoading)
{
_isAlreadyLoading = true;
await IncrementalSource.LoadMoreItemsAsync(0);
_isAlreadyLoading = false;
}
}
public PhotoStream(string title)
{
this.Title = title;
this.PhotoStreamUrl = AppSettings.PhotosUrl + "?feature=" + AppSettings.Streams[title] + "&consumer_key=" + AppSettings.ConsumerKey + "&rpp={0}" + "&image_size[]=3&image_size[]=4" + "&exclude=Nude";
if (!string.IsNullOrEmpty( AppSettings.SelectedCategory) && AppSettings.SelectedCategory != "All")
{
this.PhotoStreamUrl += "&only=" + AppSettings.SelectedCategory;
}
StreamPhotos = new IncrementalSource<RootObject, Photo>(PhotoStreamUrl, RootObjectResponse);
DataLoaded = new ManualResetEvent(false);
LoadPhotos();
}
private async void OnViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
if (ScrollingHost.VerticalOffset / ScrollingHost.ScrollableHeight >= 0.9)
{
if (IncrementalSource != null && IncrementalSource.HasMoreItems && !_isAlreadyLoading && !e.IsIntermediate)
{
_isAlreadyLoading = true;
await IncrementalSource.LoadMoreItemsAsync(0);
_isAlreadyLoading = false;
}
}
}
private async void Panel_SizeChanged(object sender, SizeChangedEventArgs e)
{
if (ScrollingHost.ScrollableHeight < 120)
{
if (IncrementalSource != null && IncrementalSource.HasMoreItems && !_isAlreadyLoading)
{
_isAlreadyLoading = true;
await IncrementalSource.LoadMoreItemsAsync(0);
_isAlreadyLoading = false;
}
}
}
private async void OnLoaded(object sender, RoutedEventArgs e)
{
var panel = ItemsPanelRoot as ItemsStackPanel;
if (panel != null)
{
ItemsStack = panel;
ItemsStack.SizeChanged += Panel_SizeChanged;
}
if (IncrementalSource != null && IncrementalSource.HasMoreItems && !_isAlreadyLoading)
{
_isAlreadyLoading = true;
await IncrementalSource.LoadMoreItemsAsync(0);
_isAlreadyLoading = false;
}
}
protected override void OnNavigatedTo(Windows.UI.Xaml.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
ListModel = new IncrementalSource<NhapHangModel>(ViewModel);
ListViewNhapHang.ItemsSource = ListModel;
}
protected override void LoadDataToList()
{
ListModel = new IncrementalSource<BanLeModel>(ViewModel);
ListViewBanLe.ItemsSource = ListModel;
}
private async void LoadComments()
{
if (commentsDetails.Visibility == Windows.UI.Xaml.Visibility.Collapsed)
{
return;
}
if (commentsList.ItemsSource == null)
{
progressRing.Visibility = Visibility.Visible;
progressRing.IsActive = true;
var commentsUrl = AppSettings.BaseUrl + "photos/" + currentItem.id + "/comments?consumer_key=" + AppSettings.ConsumerKey;
IncrementalSource<CommentDetails, Comment> paged = new IncrementalSource<CommentDetails, Comment>(commentsUrl, CommentDetailsResponse);
commentsList.ItemsSource = paged;
await paged.LoadMoreItemsAsync(1);
progressRing.Visibility = Visibility.Collapsed;
progressRing.IsActive = false;
}
}
