public void RetrieveProducts(ProductListDelegate callback)
{
if (_storeObject == null)
{
if (callback != null)
callback(null);
return;
}
_storeObject.RetrieveProducts(callback);
}
public void RetrieveProducts(ProductListDelegate callback)
{
if (_store == null ) return;
Dispatcher.InvokeOnUIThread(async () =>
{
try
{
var networkAvailable = NetworkInterface.GetIsNetworkAvailable();
if (!networkAvailable)
{
throw new Exception();
}
var products = await RetrieveProductsAsync();
if (callback != null)
{
Dispatcher.InvokeOnAppThread(() => callback(products));
};
}
catch
{
if (callback != null)
{
Dispatcher.InvokeOnAppThread(() => callback(null));
};
}
});
}