CheckedPopupMenuItem({Key key, T value, bool checked: false, bool enabled: true, Widget child })

Creates a popup menu item with a checkmark.

By default, the menu item is enabled but unchecked.

Source 

CheckedPopupMenuItem({
  Key key,
  T value,
  this.checked: false,
  bool enabled: true,
  Widget child
}) : super(
  key: key,
  value: value,
  enabled: enabled,
  child: child
);