protected async virtual Task <IEnumerable <UnsplashImageBase> > RequestAsync(int pageIndex)
{
#if DEBUG
var cts = CTSFactory.MakeCTS();
#else
var cts = CTSFactory.MakeCTS(15000);
#endif
try
{
var result = await CloudService.GetImages(pageIndex, (int)20u, cts.Token, RequestUrl);
if (result.IsRequestSuccessful)
{
IEnumerable <UnsplashImageBase> list = null;
if (Featured)
{
list = UnsplashFeaturedImage.ParseListFromJson(result.JsonSrc);
}
else
{
list = UnsplashImage.ParseListFromJson(result.JsonSrc);
}
await CoreApplication.MainView.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
UpdateHintVisibility(list);
});
return(list);
}
else
{
throw new ArgumentNullException();
}
}
catch (Exception e)
{
await Logger.LogAsync(e);
return(new List <UnsplashImage>());
}
}
protected async virtual Task <IEnumerable <UnsplashImageBase> > RequestAsync(int pageIndex)
{
var result = await CloudService.GetImages(pageIndex, (int)DEFAULT_PER_PAGE, CTSFactory.MakeCTS(10000).Token, RequestUrl);
if (result.IsRequestSuccessful)
{
if (Featured)
{
var list = UnsplashFeaturedImage.ParseListFromJson(result.JsonSrc);
UpdateHintVisibility(list);
return(list);
}
else
{
var list = UnsplashImage.ParseListFromJson(result.JsonSrc);
UpdateHintVisibility(list);
return(list);
}
}
else
{
throw new APIException();
}
}
protected async override Task <IEnumerable <UnsplashImage> > GetList(int pageIndex)
{
try
{
if (pageIndex >= 2)
{
MainVM.ShowFooterLoading = Visibility.Visible;
}
var result = await CloudService.GetImages(pageIndex, (int)DEFAULT_PER_PAGE, CTSFactory.MakeCTS(10000).Token, RequestUrl);
if (result.IsRequestSuccessful)
{
var list = UnsplashImage.ParseListFromJson(result.JsonSrc);
return(list);
}
else
{
throw new APIException();
}
}
catch (APIException)
{
await CoreApplication.MainView.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
MainVM.ShowFooterLoading = Visibility.Collapsed;
MainVM.ShowFooterReloadGrid = Visibility.Visible;
MainVM.IsRefreshing = false;
if (MainVM.MainList?.Count == 0)
{
MainVM.ShowNoItemHint = Visibility.Visible;
}
else
{
MainVM.ShowNoItemHint = Visibility.Collapsed;
}
ToastService.SendToast("Request failed.");
});
return(new List <UnsplashImage>());
}
catch (TaskCanceledException)
{
await CoreApplication.MainView.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
MainVM.ShowFooterLoading = Visibility.Collapsed;
MainVM.ShowFooterReloadGrid = Visibility.Visible;
MainVM.IsRefreshing = false;
if (MainVM.MainList.Count == 0)
{
MainVM.ShowNoItemHint = Visibility.Visible;
}
else
{
MainVM.ShowNoItemHint = Visibility.Collapsed;
}
ToastService.SendToast("Request timeout.");
});
return(new List <UnsplashImage>());
}
catch (Exception e)
{
var task = ExceptionHelper.WriteRecordAsync(e, nameof(ImageDataViewModel), nameof(GetList));
return(new List <UnsplashImage>());
}
}
