/// <summary>
/// Initializes a new instance of the AppShell, sets the static 'Current' reference,
/// adds callbacks for Back requests and changes in the SplitView's DisplayMode, and
/// provide the nav menu list with the data to display.
/// </summary>
public NavigationPage()
{
this.InitializeComponent();
this.Loaded += (sender, args) =>
{
Current = this;
this.TogglePaneButton.Focus(FocusState.Programmatic);
};
this.RootSplitView.RegisterPropertyChangedCallback(
SplitView.DisplayModeProperty,
(s, a) =>
{
// Ensure that we update the reported size of the TogglePaneButton when the SplitView's
// DisplayMode changes.
this.CheckTogglePaneButtonSizeChanged();
});
SystemNavigationManager.GetForCurrentView().BackRequested += SystemNavigationManager_BackRequested;
// If on a phone device that has hardware buttons then we hide the app's back button.
//if (ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons"))
//{
this.BackButton.Visibility = Visibility.Collapsed;
//}
NavMenuList.ItemsSource = navlist;
this.highlightBtnTimer = new DispatcherTimer();
this.highlightBtnTimer.Tick += HighlightBtnTimer_Tick;
this.highlightBtnTimer.Interval = new TimeSpan(HIGHLIGHT_BTN_TIMER_TICKS);
}
/// <summary>
/// Create a new navigation page and register it in the suspension manager. Language selection is also handled here.
/// </summary>
/// <returns></returns>
private NavigationPage CreateNewNavigationPage()
{
// Create a navigation page to act as the navigation context and navigate to the first page
NavigationPage shell = new NavigationPage();
shell.AppFrame.NavigationFailed += OnNavigationFailed;
// Register the Frame in navigation page to suspension manager
SuspensionManager.RegisterFrame(shell.AppFrame);
AppEventSource.Log.Debug("App: AppFrame registered in suspension manager.");
// Set the default language
shell.Language = Windows.Globalization.ApplicationLanguages.Languages[0];
return shell;
}