protected override void Update(IEnumerable itemsSource, IDataContext context = null)
{
base.Update(itemsSource, context);
if (itemsSource != null && !_isRestored && TabHost.GetBindingMemberValue(AttachedMembers.TabHost.RestoreSelectedIndex).GetValueOrDefault(true))
{
_isRestored = true;
TryRestoreSelectedIndex();
}
}
private static void TabHostSelectedItemChanged(TabHost tabHost, AttachedMemberChangedEventArgs <object> arg)
{
var generator = tabHost.GetBindingMemberValue(AttachedMembers.ViewGroup.ItemsSourceGenerator) as IItemsSourceGeneratorEx;
if (generator != null)
{
generator.SelectedItem = arg.NewValue;
}
}
private static void TabHostTemplateChanged <T>(TabHost tabHost, AttachedMemberChangedEventArgs <T> args)
{
var generator = tabHost.GetBindingMemberValue(AttachedMembers.ViewGroup.ItemsSourceGenerator);
if (generator != null)
{
generator.Reset();
}
}
private static void TabHostItemsSourceChanged(TabHost tabHost, AttachedMemberChangedEventArgs <IEnumerable> arg)
{
var generator = tabHost.GetBindingMemberValue(AttachedMembers.ViewGroup.ItemsSourceGenerator);
if (generator == null)
{
generator = new TabHostItemsSourceGenerator(tabHost);
tabHost.SetBindingMemberValue(AttachedMembers.ViewGroup.ItemsSourceGenerator, generator);
}
generator.SetItemsSource(arg.NewValue);
}
