BasicDropDownButton constructor

const BasicDropDownButton({ required ButtonStyle? buttonStyle, required String? buttonText, required List<Widget> menuItems(VoidCallback hideMenu)?, required double menuVerticalSpacing, required Color? menuBackgroundColor, required Widget buttonIcon({ required bool showedMenu, })?, required DropDownButtonPosition position, double buttonIconSpace = 0, Key? key, Color buttonIconColor = Colors.black, bool buttonIconFirst = true, double menuItemsSpacing = 0, Clip menuClipBehavior = Clip.hardEdge, EdgeInsets? menuPadding, Widget? buttonChild, BorderRadius? menuBorderRadius, TextStyle? buttonTextStyle, Widget customButton({ required VoidCallback? showHideMenuEvent, required bool showMenu, })?, Widget menuList({ required double buttonWidth, required VoidCallback hideMenu, })?, Key? menuKey, })

Creates a BasicDropDownButton.

Either buttonText or buttonChild must be provided, and either menuItems or menuList must be provided.

Implementation

const BasicDropDownButton({
  required this.buttonStyle,
  required this.buttonText,
  required this.menuItems,
  required this.menuVerticalSpacing,
  required this.menuBackgroundColor,
  required this.buttonIcon,
  required this.position,
  this.buttonIconSpace = 0,
  Key? key,
  this.buttonIconColor = Colors.black,
  this.buttonIconFirst = true,
  this.menuItemsSpacing = 0,
  this.menuClipBehavior = Clip.hardEdge,
  this.menuPadding,
  this.buttonChild,
  this.menuBorderRadius,
  this.buttonTextStyle,
  this.customButton,
  this.menuList,
  this.menuKey,
})  : assert(
        !(buttonChild == null && buttonText == null && customButton == null),
        'Either provide a [buttonText] or a custom [customButton] or a '
        'custom [buttonChild].',
      ),
      assert(
        !(menuItems == null && menuList == null),
        'Either provide [menuItems] or a custom [menuList].',
      ),
      super(key: key);