我一直试图将内容组（图像+文本）Dismissible作为一个单元（滑动删除/移除），但似乎无法将Widget列表作为child参数分配给Dismissible()对象。

• • 代码：**

class _PhotosListState extends State<PhotosList> {
  @override
  Widget build(BuildContext context) {
    return _buildBody();
  }
  Widget _buildBody() {
    return SizedBox(
        height: 485,
        child: ListView.builder(
          //scrollDirection: Axis.vertical,
          //shrinkWrap: true,
            itemCount: Photos.length,
            itemBuilder: (context,i){
              return Dismissible(
                  background: Container(
                    color: Colors.green,
                  ),
                  key: ValueKey<Object>(Photos.items[i]),
                  onDismissed: (DismissDirection direction) {
                    setState(() {
                      Photos.items.removeAt(i);
                    });
                  },
                  child: SizedBox(
                    child: <Widget> [
                      Image.asset(Photos.items[i].image),
                      Text(Photos.items[i].task,
                          textAlign: TextAlign.center,
                          style: const TextStyle(color: Colors.grey, fontWeight: FontWeight.bold, fontSize: 19.5)
                      ),
                    ]
                  )
              );
            }
        )
    );
  }
}

• • 资源：**
• https://medium.com/@mustafatahirhussein/a-guide-to-using-dismissible-widgets-in-flutter-c36c5797d209.
• https://api.flutter.dev/flutter/widgets/Dismissible-class.html