Flutter回调-从子列表中删除小部件

void deleteWidget(Widget widget) {
  setState(() {
    // 在这里进行删除操作
  });
}

class ChildWidget extends StatelessWidget {
  final Function(Widget) onDelete;

  ChildWidget({required this.onDelete});

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        // 在这里触发删除操作，并将自身小部件传递给父组件的回调函数
        onDelete(this);
      },
      child: Container(
        // 子组件的内容
      ),
    );
  }
}

class ParentWidget extends StatefulWidget {
  @override
  _ParentWidgetState createState() => _ParentWidgetState();
}

class _ParentWidgetState extends State<ParentWidget> {
  List<Widget> widgets = [
    // 子组件列表
  ];

  void deleteWidget(Widget widget) {
    setState(() {
      widgets.remove(widget);
    });
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: widgets.map((widget) {
        return ChildWidget(
          onDelete: deleteWidget,
        );
      }).toList(),
    );
  }
}