Hi,
Attached VS2019 (Windows) Shell solution is loading TabBar Tabs dynamically. The issue is TabBar.Tab.Items.Clear() results in page not loading in iOS, and in Android only one of the 2 tabs has data.
What am I doing wrong?
See AppShellViewModel.cs
Thank you.
class AppShellViewModel: BaseViewModel
{
private ObservableCollection<string> accounts = new ObservableCollection<string>();
public AppShellViewModel()
{
Task.Factory.StartNew(RefreshAccountListAsync);
}
public ObservableCollection<string> Accounts
{
get => accounts;
set => SetProperty(ref accounts, value);
}
private void RefreshAccountListAsync()
{
IsBusy = true;
Accounts = new ObservableCollection<string>(new List<string>() { "Account1", "Account2" });
Tab resultsTab = PickerTestApp.AppShell.Current.FindByName<Tab>("resultsTab");
Xamarin.Essentials.MainThread.BeginInvokeOnMainThread(() =>
{
//On Android, clearing Items works.
//On iOS, app does not load at all
resultsTab.Items.Clear();
//On Andoid: Account2 never loads ItemsPage
//On iOS, app does not load at all
foreach (var account in Accounts)
{
ShellContent resultsSC = new ShellContent();
resultsSC.Title = account.ToUpperInvariant();
resultsSC.Route = account;
resultsSC.ContentTemplate = new DataTemplate(() => { return new PickerTestApp.Views.ItemsPage(); });
resultsTab.Items.Add(resultsSC);
}
});
IsBusy = false;
}
}`
. I thank you very much because there I am completely blocked!