public MainMasterDetailPage()
{
InitializeComponent();
MasterPage.ListView.ItemSelected += (sender, e) => { ((ListView)sender).SelectedItem = null; };
MasterPage.ListView.ItemSelected += async(o, args) => await ListView_ItemSelected(o, args);
// just for initialize the first time
_lastSelectedItem = new MasterDetailMenuItem {
Id = 0
};
}
async System.Threading.Tasks.Task OnSelectItemAsync(MasterDetailMenuItem MenuItem)
{
if (MenuItem.Title.Equals(NavMenu.Logout))
{
Logout();
}
if (MenuItem.Title.Equals(NavMenu.AddCoursePage))
{
Barrel.Current.Add <List <Course> >("AllCourseList", await _service.GetAllCourses(), TimeSpan.FromMinutes(20));
}
if (MenuItem.Title.Equals(NavMenu.PhoneNumbersPage))
{
Barrel.Current.Add <List <Directory> >("AllDirectoriesList", await _service.GetAllDirectories(), TimeSpan.FromMinutes(20));
}
await _navigationService.NavigateAsync($"{NavConstants.Navigation}/{MenuItem.TargetPage}");
}
private async Task ListView_ItemSelected(object sender, SelectedItemChangedEventArgs e)
{
var item = e.SelectedItem as MasterDetailMenuItem;
if (item == null)
{
return;
}
if (_lastSelectedItem.Id != item.Id)
{
var page = await Task.Run(() => item.NewPage());
Detail = new NavigationPage(page);
_lastSelectedItem = item;
}
IsPresented = false;
}