Show back button in charm settings with my privacy page in windows store apps - xaml

Question

I have a code which show privacy policy URL in charm settings bar.But what I need is like when user clicks on the privacy policy link it should open another page in charm settings with a back button.How to do the same in the below code
private async void OpenPrivacyPolicy(IUICommand command)
{
Uri uri = new Uri("https://sites.google.com/site/mysite/");
await Windows.System.Launcher.LaunchUriAsync(uri);
}

Answer 1

Finally I figured out the solution,thanks to windows 8.1 Appsetting sample app . First of all add a settingsFlyout XAML page to your project.I added the privacy flyout code in my app's home page like this
protected override void OnNavigatedTo(NavigationEventArgs e)
{
SettingsPane.GetForCurrentView().CommandsRequested += onCommandsRequested;
}
protected override void OnNavigatedFrom(NavigationEventArgs e)
{
SettingsPane.GetForCurrentView().CommandsRequested -= onCommandsRequested;
}
void onCommandsRequested(SettingsPane settingsPane, SettingsPaneCommandsRequestedEventArgs e)
{
SettingsCommand defaultsCommand = new SettingsCommand("Privacy", "Privacy",
(handler) =>
{
Privacy sf = new Privacy();
sf.Show();
});
e.Request.ApplicationCommands.Add(defaultsCommand);
}
then in my Privacy.xaml page I added the following code
public Privacy()
{
this.InitializeComponent();
this.Loaded += (sender, e) =>
{
Window.Current.CoreWindow.Dispatcher.AcceleratorKeyActivated += SettingsFlyout1_AcceleratorKeyActivated;
};
this.Unloaded += (sender, e) =>
{
Window.Current.CoreWindow.Dispatcher.AcceleratorKeyActivated -= SettingsFlyout1_AcceleratorKeyActivated;
};
}
void SettingsFlyout1_AcceleratorKeyActivated(CoreDispatcher sender, AcceleratorKeyEventArgs args)
{
// Only investigate further when Left is pressed
if (args.EventType == CoreAcceleratorKeyEventType.SystemKeyDown &&
args.VirtualKey == VirtualKey.Left)
{
var coreWindow = Window.Current.CoreWindow;
var downState = CoreVirtualKeyStates.Down;
bool menuKey = (coreWindow.GetKeyState(VirtualKey.Menu) & downState) == downState;
bool controlKey = (coreWindow.GetKeyState(VirtualKey.Control) & downState) == downState;
bool shiftKey = (coreWindow.GetKeyState(VirtualKey.Shift) & downState) == downState;
if (menuKey && !controlKey && !shiftKey)
{
args.Handled = true;
this.Hide();
}
}
}
Thanks for all the help everyone! And this code works!If anyone facing difficulty just hit me ;)