private void OnFlyoutClosed(FlyoutControl flyoutControl)
{
this.FlyoutClosing.Raise(EventArgs.Empty);
if (this.flyouts.Count > 0 && this.flyouts.Peek() == flyoutControl)
{
this.flyouts.Pop();
while (this.flyouts.Count > 0)
{
FlyoutControl childControl = this.flyouts.Pop();
childControl.Close();
}
}
}
public void GoBack()
{
if (this.flyouts.Count == 0)
{
// no flyout => normal go back
if (this.mainFrame.CanGoBack)
{
if (this.mainFrame.Content is FrameworkElement)
{
var datacontext = ((FrameworkElement)this.mainFrame.Content).DataContext as IDisposable;
if (datacontext != null)
{
datacontext.Dispose();
}
}
this.mainFrame.GoBack();
}
else
{
// platform service can be null if we instantiante the navigation service manually
// during startup to report a crash
if (this.platformService != null)
{
this.platformService.ExitAppAsync();
}
}
}
else
{
FlyoutControl flyoutControl = this.flyouts.Pop();
if (flyoutControl.DataContext is IDisposable)
{
((IDisposable)flyoutControl.DataContext).Dispose();
}
flyoutControl.Close();
}
}
