public void NavigateBack(TEKUtsavAppPage destinationPage, object navigationParam = null)
{
var masterDetail = (MasterDetailPage)Application.Current.MainPage;
if (masterDetail != null)
{
var pages = masterDetail.Detail.Navigation.NavigationStack;
var pagesToRemove = new List <Page>();
var totPages = (masterDetail.Detail.Navigation.NavigationStack.Count - 1);
for (int i = totPages; i > 0; i--)
{
var page = masterDetail.Detail.Navigation.NavigationStack[i];
var vm = page.BindingContext as ViewModelBase;
if (null != vm && !vm.PageName.Equals(destinationPage))
{
vm.Dispose();
masterDetail.Detail.Navigation.RemovePage(page);
}
else
{
if (null != navigationParam)
{
vm.NavigationParameter = navigationParam;
break;
}
}
}
}
}
public void OnPopped(TEKUtsavAppPage page)
{
if (ViewModelPopped != null)
{
ViewModelPopped.Invoke(this, new ViewModelPoppedEventHandlerArgs(page));
}
}
public void NavigateTo(TEKUtsavAppPage page, object navigationParams = null)
{
if (page == TEKUtsavAppPage.LoginPage)
{
_currentPage = page;
Application.Current.MainPage = SetLoginPage();
return;
}
if (page == TEKUtsavAppPage.RegistrationPage)
{
_currentPage = page;
Application.Current.MainPage = SetRegistrationPage();
return;
}
if (page == TEKUtsavAppPage.MasterMenuPage)
{
_currentPage = page;
Application.Current.MainPage = SetMasterDetailPage(navigationParams);
return;
}
if (page != TEKUtsavAppPage.LoginPage && page != TEKUtsavAppPage.RegistrationPage && page != TEKUtsavAppPage.MasterMenuPage && page != TEKUtsavAppPage.AppListingMasterMenuPage)
{
if (!(Application.Current.MainPage is MasterDetailPage))
{
Application.Current.MainPage = SetMasterDetailPage(navigationParams);
_currentPage = TEKUtsavAppPage.MasterMenuPage;
}
var masterDetail = (MasterDetailPage)Application.Current.MainPage;
if (_currentPage == page)
{
return;
}
var requestedPage = _pageRegistry.GetPage(page, navigationParams);
var navigationPage = masterDetail.Detail as NavigationPage;
if (navigationPage != null)
{
navigationPage.Popped += delegate(object sender, NavigationEventArgs args)
{
var vm = sender as ViewModelBase;
if (vm != null)
{
vm.OnPopped(page);
}
};
}
masterDetail.Detail.Navigation.PushAsync(requestedPage, true);
}
}
public void ShowPopup(TEKUtsavAppPage page, object navigationParams = null)
{
var requestedPage = (PopupPage)_pageRegistry.GetPage(page, navigationParams);
var masterDetail = (TEKUtsav.Views.RegistrationPage.RegistrationPage)Application.Current.MainPage;
if (masterDetail != null)
{
if (!PopupNavigation.PopupStack.Any())
{
masterDetail.Navigation.PushPopupAsync(requestedPage);
}
}
}
public void SetCurrentPage(TEKUtsavAppPage page)
{
NavigationService.SetCurrentPage(page);
this.PageName = page;
}
public ViewModelPoppedEventHandlerArgs(TEKUtsavAppPage page)
{
AppPage = page;
}
public void SetCurrentPage(TEKUtsavAppPage page)
{
_currentPage = page;
}
