public StationNamePage()
{
InitializeComponent();
String icon = "IconCheck.png";
BindingContext = this;
if (StartPage.IsDeparture)
{
Title = "Выбор станции отправления";
}
else
{
Title = "Выбор станции назначения";
}
_stationService = new StationService(App.Database.sqlite);
StationNamesList.ItemsSource = Stations;
ToolbarItems.Add(new ToolbarItem
{
Icon = icon,
Command = new Command(() =>
{
Device.BeginInvokeOnMainThread(async() =>
{
await Navigation.PopModalAsync();
});
}),
});
StationNamesList.ItemSelected += (object sender, SelectedItemChangedEventArgs e) =>
{
if (StartPage.IsDeparture)
{
App.Request.DepartureStation = (Station)e.SelectedItem;
}
else
{
App.Request.ArrivalStation = (Station)e.SelectedItem;
}
Device.BeginInvokeOnMainThread(async() =>
{
await Navigation.PopModalAsync();
});
};
Search.TextChanged += async(sender, e) =>
{
if (e.NewTextValue.Length != 0)
{
Loader.IsVisible = true;
var databaseStations = await _stationService.FindByName(e.NewTextValue.ToUpper());
if (databaseStations.Count == 0)
{
if (!DownloadCheker.IsStationDownloadedByName(e.NewTextValue))
{
DataRetrievalHelper dataHelper = new DataRetrievalHelper();
await dataHelper.GetAndSaveStationsByName(e.NewTextValue[0]);
databaseStations = await _stationService.FindByName(e.NewTextValue.ToUpper());
}
}
Stations.Clear();
foreach (var cargo in databaseStations)
{
Stations.Add(cargo);
}
Loader.IsVisible = false;
StationNamesList.IsVisible = Stations.Count != 0;
}
else
{
StationNamesList.IsVisible = false;
}
};
}
public DataRetrievalHelper()
{
_stationService = new StationService(App.Database.sqlite);
_cargoService = new CargoService(App.Database.sqlite);
_observers = new List <IObserver <Message> >();
}