private void Button_Click(object sender, RoutedEventArgs e)
{
switch ((sender as FrameworkElement).Tag as string)
{
case "Refresh":
LoadList(1);
VScrollViewer.ChangeView(null, 20, null);
break;
case "back":
Frame.GoBack();
break;
}
}
private void ScrollViewer_ViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
if (!e.IsIntermediate)
{
if (VScrollViewer.VerticalOffset == 0)
{
Refresh();
VScrollViewer.ChangeView(null, 20, null);
refreshText.Visibility = Visibility.Collapsed;
}
else if (VScrollViewer.VerticalOffset == VScrollViewer.ScrollableHeight)
{
LoadFeeds();
}
}
else
{
refreshText.Visibility = Visibility.Visible;
}
}
private void ScrollViewer_ViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
if (!e.IsIntermediate)
{
if (Collection.Count != 0)
{
if (VScrollViewer.VerticalOffset == 0)
{
GetUrlPage(1);
VScrollViewer.ChangeView(null, 20, null);
refreshText.Visibility = Visibility.Collapsed;
}
else if (VScrollViewer.VerticalOffset == VScrollViewer.ScrollableHeight)
{
//if (string.IsNullOrEmpty(pageUrl)) GetIndexPage(++page);
GetUrlPage();
}
}
}
else
{
refreshText.Visibility = Visibility.Visible;
}
}
private void ListViewItem_Tapped(object sender, TappedRoutedEventArgs e)
{
GetUrlPage(1);
VScrollViewer.ChangeView(null, 0, null);
}
public void RefreshPage()
{
GetUrlPage(1);
VScrollViewer.ChangeView(null, 0, null);
}