async Task ItemClickCommandExecuteAsync(string category)
{
if (IsBusy)
{
return;
}
Exception error = null;
try
{
IsBusy = true;
var jokePage = new JokePage();
await jokePage.ViewModel.Initialize(category);
await Navigation.PushAsync(jokePage);
}
catch (Exception ex)
{
Debug.WriteLine("Error: " + ex);
error = ex;
}
finally
{
IsBusy = false;
}
if (error != null)
{
await ShowAlertAsync("Error!", error.Message, "OK");
}
}
public JokeViewModel(JokePage page)
{
FetchJokeCommand = new Command(FetchJoke);
StoreJokeCommand = new Command(StoreJoke);
_jokeLabel = page.FindByName <Label>("LabelJoke");
_restClient = DependencyService.Get <IRestClient>();
_persistor = DependencyService.Get <IPersistor>();
}
/// <summary>
/// Navigate to joke's detail page.
/// </summary>
/// <param name="sender">The control/object that raised the event.</param>
/// <param name="e">Event Data.</param>
/// <param name="j">Joke. Detail page will be opened about it.</param>
private void JokeButton_Click(object sender, RoutedEventArgs e, Joke j)
{
JokePage jokePage = new JokePage(j, this, this.CurrentLoggedInUser);
NavigationService.Navigate(jokePage);
}