private async void HandleItemSelected(Product product)
{
// Check for internet connection
if (!CrossConnectivity.Current.IsConnected)
{
await Application.Current.MainPage.DisplayAlert("", "No internet connection", "OK");
return;
}
if (SelectedItem != null)
{
SelectedItem = null;
string document = "";
if (product.DataURL != null && product.DataURL != "")
{
document = BingWebRequest.SendRequest(product.DataURL);
}
if (document != null && document != "")
{
new ProductExtractor().ExtractDetails(product, document);
}
await Application.Current.MainPage.Navigation.PushModalAsync(new NavigationPage(new ProductPage(product, true)));
}
}
private async void HandleSearch(string text)
{
// Check for internet connection
if (!CrossConnectivity.Current.IsConnected)
{
await Application.Current.MainPage.DisplayAlert("", "No internet connection", "OK");
return;
}
string document = "";
IList <Product> products = null;
if (text != null && text.Trim() != "")
{
string query = Uri.EscapeDataString(text.Trim());
document = BingWebRequest.SendRequest("/shop?q=" + query);
}
if (document != null && document != "")
{
products = new ProductExtractor().ExtractProducts(document);
}
if (products != null && products.Count > 0)
{
Products = new ObservableCollection <Product>(products);
SelectedOption = null;
}
else
{
await Application.Current.MainPage.DisplayAlert("", "No results", "OK");
}
}
private async void ProcessImage(MediaFile file)
{
// Check for internet connection
if (!CrossConnectivity.Current.IsConnected)
{
await Application.Current.MainPage.DisplayAlert("", "No internet connection", "OK");
return;
}
if (file == null)
{
return;
}
// Show photo and enable loading animation
Source = file.Path;
IsRunning = true;
IsVisible = true;
// Annotate image on another thread
string keywords = "";
try
{
await Task.Run(async() =>
{
keywords = await AnnotateAsync(file.Path);
});
}
catch (Exception ex)
{
Console.WriteLine(ex.StackTrace);
}
// Show placeholder and disable loading animation
Source = "placeholder.png";
IsRunning = false;
IsVisible = false;
// Search for the item using Bing shop
if (keywords.Trim() != "")
{
string document = "";
IList <Product> products = null;
string query = Uri.EscapeDataString(keywords.Trim());
document = BingWebRequest.SendRequest("/shop?q=" + query);
if (document != null && document != "")
{
products = new ProductExtractor().ExtractProducts(document);
}
if (products != null && products.Count > 0)
{
await Application.Current.MainPage.Navigation.PushModalAsync(new NavigationPage(new ResultPage(products)));
}
else
{
await Application.Current.MainPage.DisplayAlert("", "No results", "OK");
}
}
else
{
await Application.Current.MainPage.DisplayAlert("", "No results", "OK");
}
}
