void LoadSelectedPage(UpcomingMoviesCellViewModel viewModel)
{
HostScreen
.Router
.Navigate
.Execute(new MovieDetailViewModel(viewModel.Movie))
.Subscribe();
}
/// <summary>
/// Initializes a new instance of the <see cref="UpcomingMoviesListViewModel"/> class.
/// </summary>
/// <param name="mainThreadScheduler">The scheduler to use for main thread operations.</param>
/// <param name="taskPoolScheduler">The scheduler to use for task pool operations.</param>
/// <param name="movieService">The service to use to retrieve movie information.</param>
/// <param name="hostScreen">The screen to use for routing operations.</param>
public UpcomingMoviesListViewModel(
IScheduler mainThreadScheduler = null,
IScheduler taskPoolScheduler = null,
IMovieService movieService = null,
IScreen hostScreen = null)
: base("Upcoming Movies", mainThreadScheduler, taskPoolScheduler, hostScreen)
{
IMovieService movieService1 = movieService ?? Locator.Current.GetService <IMovieService>();
LoadMovies = ReactiveCommand.CreateFromObservable <int, Unit>(count => movieService1.LoadUpcomingMovies(count));
OpenAboutView = ReactiveCommand.CreateFromObservable <Unit, IRoutableViewModel>(_ => HostScreen
.Router
.Navigate
.Execute(new AboutViewModel(mainThreadScheduler, taskPoolScheduler, hostScreen)));
movieService1
.UpcomingMovies
.Connect()
.SubscribeOn(TaskPoolScheduler)
.ObserveOn(TaskPoolScheduler)
.Transform(movie => new UpcomingMoviesCellViewModel(movie), (o, n) => o = new UpcomingMoviesCellViewModel(n))
.DisposeMany()
.ObserveOn(MainThreadScheduler)
.Bind(out _movies)
.Subscribe();
LoadMovies.Subscribe();
OpenAboutView.Subscribe();
this
.WhenAnyValue(x => x.SelectedItem)
.Where(x => x != null)
.SelectMany(x => HostScreen
.Router
.Navigate
.Execute(new MovieDetailViewModel(x.Movie)))
.Subscribe();
LoadMovies
.ThrownExceptions
.ObserveOn(MainThreadScheduler)
.SelectMany(ex => ShowAlert.Handle(new AlertViewModel("Oops", ex.Message, "Ok")))
.Subscribe();
_isRefreshing =
LoadMovies
.IsExecuting
.ToProperty(this, x => x.IsRefreshing, true);
this
.WhenAnyValue(x => x.ItemAppearing)
.Select(item =>
{
int offset = -1;
var itemIndex = Movies.IndexOf(item);
if (itemIndex == Movies.Count - 8)
{
offset = Movies.Count;
}
return(offset);
})
.Where(index => index > 0)
.InvokeCommand(LoadMovies);
}
