void RestoreState(object parameter, PageStateStorage storage)
{
List <string> savedNavigationHistory;
if (storage.TryGetParameter("DemoNavigationHistory", out savedNavigationHistory))
{
navigationHistory = savedNavigationHistory;
}
;
object hamburgerMenuItemGroupName = navigationHistory == null ? parameter : navigationHistory[navigationHistory.Count - 1];
SelectHamburgerMenuItemByParameter(hamburgerMenuItemGroupName);
if (hamburgerMenuItemGroupName.Equals(parameter))
{
return;
}
DemoModuleViewModel demoModule = DemoModules.FirstOrDefault(x => x.DemoModule.ViewTypeName.Equals(parameter));
if (demoModule != null)
{
UpdateFilteredDemoModules(demoModule);
NavigationLevel = NavigationLevel.DemoModule;
SelectedDemoModuleIndex = storage.GetParameter("SelectedDemoModuleIndex", SelectedDemoModuleIndex);
}
else
{
NavigationLevel = NavigationLevel.Main;
Navigate("MainPage", MainScreenId);
}
}
void ISupportSaveLoadState.LoadState(object navigationParameter, PageStateStorage pageState)
{
var item = SampleDataSource.GetItem(pageState.GetParameter("SelectedItem", (string)navigationParameter));
SelectedItem = item;
}