void IAtomListItem.OnDisappearing(AtomListView owner)
{
foreach (View child in Children)
{
if (child.BindingContext != null)
{
(child as IAtomListItem)?.OnDisappearing(owner);
}
}
}
private void Init()
{
cancelButton.Command = new AtomCommand(async() => {
await DependencyService.Get <INavigation>().PopAsync();
});
if (Chooser.AllowMultipleSelection)
{
// take navigator list...
listView = new AtomNavigatorListView();
this.ToolbarItems.Add(new ToolbarItem {
Text = "Done",
Command = DoneCommand
});
okButton.Command = DoneCommand;
}
else
{
listView = new AtomListView();
listView.TapCommand = DoneCommand;
okButton.IsVisible = false;
Grid.SetColumnSpan(cancelButton, 2);
}
listView.ItemsChanged += ListView_ItemsChanged;
Grid.SetColumnSpan(listView, 2);
this.Title = Chooser.PromptText;
listView.ItemTemplate = Chooser.ItemTemplate;
listView.GroupDisplayBinding = Chooser.GroupDisplayBinding;
listView.GroupHeaderTemplate = Chooser.GroupHeaderTemplate;
listView.IsGroupingEnabled = Chooser.IsGroupingEnabled;
//listView.ItemsSource = Chooser.ItemsSource;
listView.SetBinding(AtomListView.ItemsSourceProperty, new Binding()
{
Source = Chooser,
Path = nameof(AtomChooser.ItemsSource)
});
Grid.SetRow(listView, 2);
searchBar.IsVisible = Chooser.ShowSearch;
addButton.IsVisible = Chooser.AddNewCommand != null;
addButton.Command = Chooser.AddNewCommand;
addButton.Text = Chooser.AddNewLabel;
if (searchBar.IsVisible)
{
UIAtomsApplication.Instance.SetTimeout(() => {
searchBar.Focus();
}, TimeSpan.FromMilliseconds(100));
searchBar.TextChanged += (s, e) => {
string st = e.NewTextValue;
Chooser.SearchText = st;
string fp = Chooser.FilterPath;
if (string.IsNullOrWhiteSpace(fp))
{
return;
}
if (string.IsNullOrWhiteSpace(st))
{
listView.SetBinding(AtomListView.ItemsSourceProperty, new Binding()
{
Source = Chooser,
Path = nameof(AtomChooser.ItemsSource)
});
}
else
{
var list = Chooser.ItemsSource.Cast <object>();
var glist = list as IEnumerable <IGrouping <object, object> >;
if (glist != null)
{
// grouped list filtering...
listView.ItemsSource = glist.Where(x => x.Any(i => Filter(i, st, fp)));
}
else
{
listView.ItemsSource = list.Where(i => Filter(i, st, fp));
}
}
};
}
theGrid.Children.Add(listView);
}
