public MainPage()
{
BingObject bingObject = BingUtils.GetWallpaperFromBing("ES-es");
this.InitializeComponent();
var coreTitleBar = CoreApplication.GetCurrentView().TitleBar;
Window.Current.SetTitleBar(AppTitle);
coreTitleBar.ExtendViewIntoTitleBar = true;
//remove the solid-colored backgrounds behind the caption controls and system back button
var viewTitleBar = ApplicationView.GetForCurrentView().TitleBar;
viewTitleBar.ButtonBackgroundColor = Colors.Transparent;
viewTitleBar.ButtonInactiveBackgroundColor = Colors.Transparent;
viewTitleBar.ButtonForegroundColor = (Color)Resources["SystemBaseHighColor"];
UpdateAppTitle();
Window.Current.CoreWindow.SizeChanged += (s, e) => UpdateAppTitle();
coreTitleBar.LayoutMetricsChanged += (s, e) => UpdateAppTitle();
ContentFrame.Navigate(typeof(BingPage));
}
