protected override async Task OnRefreshAsync(bool forceRefresh, CancellationToken ct)
{
if (string.IsNullOrEmpty(this.ID))
{
throw new UserFriendlyException("No item was requested to be displayed.");
}
if (forceRefresh || this.Item == null)
{
this.ShowInterstitialAd();
try
{
if (this.Item == null)
{
this.Title = Resources.TextLoading;
}
this.ShowBusyStatus(Resources.TextLoading, this.Item == null);
using (var api = new ClientApi())
{
this.Item = await api.GetItemByID(this.ID, ct);
}
}
finally
{
await this.RefreshUIAsync();
}
}
if (this.Item == null)
{
this.Title = Resources.TextNotApplicable;
throw new ArgumentException("No item to display.");
}
}
/// <summary>
/// Converts a tile ID back into an object instance.
/// </summary>
/// <param name="tileID">Tile ID to retrieve an object instance for.</param>
/// <param name="ct">Cancelation token.</param>
/// <returns>Object instance if found else null.</returns>
public override async Task <IModel> GenerateModelFromTileIdAsync(string tileID, CancellationToken ct)
{
try
{
if (tileID.StartsWith("ItemModel_"))
{
var id = tileID.Split('_').Last();
using (var api = new ClientApi())
{
return(await api.GetItemByID(id, ct));
}
}
}
catch (Exception ex)
{
throw new Exception(string.Format("Couldn't generate model from tileID = {0}", tileID), ex);
}
throw new NotImplementedException(string.Format("App has not implemented creating a model from tileID = {0}", tileID));
}
