コード例 #1
0
        public StoreSearch()
        {
            InitializeComponent();

            this.OneWayBind(ViewModel, x => x.IsLoading, x => x.Loading.IsRunning)
            .DisposeWith(PageDisposables);

            this.BindCommand(ViewModel, x => x.Search, x => x.Search, x => x.SearchText, nameof(Search.Clicked))
            .DisposeWith(PageDisposables);

            this.WhenAnyValue(x => x.ViewModel)
            .Where(x => x != null)
            .Select(x => Unit.Default)
            .InvokeCommand(this, x => x.ViewModel.InitializeData)
            .DisposeWith(PageDisposables);

            this.WhenAnyValue(x => x.ViewModel.Stores)
            .Where(x => x != null)
            .BindTo(this, x => x.StoreList.ItemsSource)
            .DisposeWith(PageDisposables);

            this.WhenAnyValue(x => x.ViewModel.StoreCategories)
            .Where(x => x != null)
            .BindTo(this, x => x.Categories.ItemsSource)
            .DisposeWith(PageDisposables);

            SearchBar
            .Events()
            .TextChanged
            .Throttle(TimeSpan.FromMilliseconds(250), RxApp.TaskpoolScheduler)
            .Where(x => x?.OldTextValue?.Length > 0 && x.NewTextValue?.Length == 0)
            .Select(x => x.NewTextValue)
            .ObserveOn(RxApp.MainThreadScheduler)
            .InvokeCommand(this, x => x.ViewModel.Search)
            .DisposeWith(PageDisposables);

            StoreList
            .Events()
            .ItemTapped
            .Select(x => x.Item)
            .Cast <StoreCardViewModel>()
            .InvokeCommand(this, x => x.ViewModel.Details)
            .DisposeWith(PageDisposables);

            StoreList
            .Events()
            .ItemSelected
            .Subscribe(item => StoreList.SelectedItem = null)
            .DisposeWith(PageDisposables);
        }