public OnDemand()
{
InitializeComponent();
Title = AppResources.OnDemandTitle;
search.Placeholder = AppResources.SearchPlaceholderText;
_collectionView = new YouTubeCollectionView();
list.ItemsSource = _collectionView;
list.LoadItemsOnDemand(_collectionView);
orderBy.Items.Add("relevance");
orderBy.Items.Add("date");
orderBy.Items.Add("viewCount");
orderBy.Items.Add("rating");
orderBy.Items.Add("title");
orderBy.SelectedIndex = 0;
}
private async Task UpdateVideos()
{
try
{
message.IsVisible = false;
list.IsVisible = false;
activityIndicator.IsRunning = true;
var _videos = new ObservableCollection <YouTubeVideo>((await YouTubeCollectionView.LoadVideosAsync("Xamarin Forms", "relevance", null, 50)).Item2);
_collectionView = new XuniCollectionView <YouTubeVideo>(_videos);
list.ItemsSource = _collectionView;
list.IsVisible = true;
}
catch
{
message.Text = AppResources.InternetConnectionError;
message.IsVisible = true;
}
finally
{
activityIndicator.IsRunning = false;
}
}
