public MainWindow()
{
InitializeComponent();
this.Height = (System.Windows.SystemParameters.PrimaryScreenHeight * 0.7);
this.Width = (System.Windows.SystemParameters.PrimaryScreenWidth * 0.7);
loader.readCitiesFromJson();
CityDescriptor currentCity = WeatherDataLoader.getCurrentLocation();
loader.selectCity(currentCity);
loader.refreshWeatherData(loader.SelectedCity.id.ToString());
loader.SelectedDay = loader.Weather.DayForecasts[0];
DateTime dt = DateTime.Now;
loader.RefreshMessage = "Last time updated: " + dt.ToString();
loader.loadFavouriteCities();
CheckFavourite();
refresher.Start(loader);
this.DataContext = loader;
}