build method

Implementation

@override
Widget build(final BuildContext context) => Semantics(
      customSemanticsActions: {
        for (final v in values.where((final e) => e != value))
          CustomSemanticsAction(label: _getValueName(v)): () => onChanged(v),
        if (nullable)
          CustomSemanticsAction(label: emptyValue): () => onChanged(null),
      },
      child: MenuAnchor(
        menuChildren: [
          if (nullable)
            Semantics(
              checked: value == null,
              selected: true,
              child: MenuItemButton(
                autofocus: value == null,
                child: Text(emptyValue),
                onPressed: () => onChanged(null),
              ),
            ),
          ...values.map(
            (final v) {
              final checked = v == value;
              return Semantics(
                checked: checked,
                selected: true,
                child: MenuItemButton(
                  autofocus: checked,
                  onPressed: () => onChanged(v),
                  trailingIcon: SelectedIcon(selected: checked),
                  child: Text(_getValueName(v)),
                ),
              );
            },
          ),
        ],
        builder: (final context, final controller, final child) => ListTile(
          autofocus: autofocus,
          title: Text(title),
          subtitle: Text(_getValueName(value)),
          onTap: controller.toggle,
          onLongPress: onLongPress,
        ),
      ),
    );