protected override MauiPicker CreateNativeView()
{
_pickerView = new UIPickerView();
var nativePicker = new MauiPicker(_pickerView)
{
BorderStyle = UITextBorderStyle.RoundedRect
};
var width = UIScreen.MainScreen.Bounds.Width;
var toolbar = new UIToolbar(new RectangleF(0, 0, width, 44))
{
BarStyle = UIBarStyle.Default, Translucent = true
};
var spacer = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace);
var doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Done, (o, a) =>
{
var pickerSource = (PickerSource)_pickerView.Model;
if (pickerSource.SelectedIndex == -1 && VirtualView?.Items != null && VirtualView.Items.Count > 0)
{
UpdatePickerSelectedIndex(0);
}
if (VirtualView?.SelectedIndex == -1 && VirtualView.Items != null && VirtualView.Items.Count > 0)
{
TypedNativeView?.SetSelectedIndex(VirtualView, 0);
}
UpdatePickerFromPickerSource(pickerSource);
nativePicker.ResignFirstResponder();
});
toolbar.SetItems(new[] { spacer, doneButton }, false);
nativePicker.InputView = _pickerView;
nativePicker.InputAccessoryView = toolbar;
nativePicker.InputView.AutoresizingMask = UIViewAutoresizing.FlexibleHeight;
nativePicker.InputAccessoryView.AutoresizingMask = UIViewAutoresizing.FlexibleHeight;
if (UIDevice.CurrentDevice.CheckSystemVersion(9, 0))
{
nativePicker.InputAssistantItem.LeadingBarButtonGroups = null;
nativePicker.InputAssistantItem.TrailingBarButtonGroups = null;
}
nativePicker.AccessibilityTraits = UIAccessibilityTrait.Button;
_pickerView.Model = new PickerSource(VirtualView);
return(nativePicker);
}