如何在Flutter中显示基于ListView选择的某些小部件？

ListView(
  children: [
    // 在这里添加小部件
  ],
)

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  List<bool> selectedItems = List.generate(10, (_) => false);

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: selectedItems.length,
      itemBuilder: (context, index) {
        return ListTile(
          title: Text('Item $index'),
          selected: selectedItems[index],
          onTap: () {
            setState(() {
              selectedItems[index] = !selectedItems[index];
            });
          },
        );
      },
    );
  }
}

ListView.builder(
  itemCount: selectedItems.length,
  itemBuilder: (context, index) {
    return ListTile(
      title: Text('Item $index'),
      selected: selectedItems[index],
      onTap: () {
        setState(() {
          selectedItems[index] = !selectedItems[index];
        });
      },
    );
  },
)

// 在构建UI时根据选择状态显示选中的小部件
List<Widget> selectedWidgets = [];
for (int i = 0; i < selectedItems.length; i++) {
  if (selectedItems[i]) {
    selectedWidgets.add(Text('Selected item $i'));
  }
}
return Column(children: selectedWidgets);