protected async override void OnNavigatedTo(NavigationEventArgs e)
{
var json = e.Parameter as string;
var paihangdata = Class.data.DataContractJsonDeSerialize <YueKuPage.ViewMode.PaiHang>(json);
title.Text = paihangdata.rankname;
listmanager = new SongDataList(paihangdata.rankid);
SongLoadProgress.IsActive = true;
await listmanager.LoadPage();
SongListView.ItemsSource = listmanager.list;
SongListView.SelectionMode = ListViewSelectionMode.Single;
SongListView.SelectionChanged += SongListView_SelectionChanged;
SongLoadProgress.IsActive = false;
}
private void ScrollViewer_ViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
var sv_SP = sender as ScrollViewer;
if (sv_SP.VerticalOffset == sv_SP.ScrollableHeight)
{
lock (o)
{
if (!SongLoadProgress.IsActive)
{
SongLoadProgress.IsActive = true;
Task.Factory.StartNew(async() =>
{
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
await listmanager.LoadPage();
SongLoadProgress.IsActive = false;
});
});
}
}
}
}