如何在列表(颤动/Dart)中编辑自定义模型的属性？

class User {
  String name;
  int age;

  User({this.name, this.age});
}

List<User> users = [
  User(name: "John", age: 25),
  User(name: "Alice", age: 30),
];

ListView.builder(
  itemCount: users.length,
  itemBuilder: (context, index) {
    User user = users[index];
    return ListTile(
      title: Text(user.name),
      subtitle: Text("Age: ${user.age}"),
      trailing: IconButton(
        icon: Icon(Icons.edit),
        onPressed: () {
          // 编辑属性的操作
        },
      ),
    );
  },
);

TextEditingController nameController = TextEditingController();
TextEditingController ageController = TextEditingController();

// 编辑属性的操作
showDialog(
  context: context,
  builder: (context) {
    return AlertDialog(
      title: Text("Edit User"),
      content: Column(
        children: [
          TextFormField(
            controller: nameController,
            decoration: InputDecoration(labelText: "Name"),
          ),
          TextFormField(
            controller: ageController,
            decoration: InputDecoration(labelText: "Age"),
          ),
        ],
      ),
      actions: [
        FlatButton(
          child: Text("Cancel"),
          onPressed: () {
            Navigator.pop(context);
          },
        ),
        FlatButton(
          child: Text("Save"),
          onPressed: () {
            // 更新属性的操作
            setState(() {
              user.name = nameController.text;
              user.age = int.parse(ageController.text);
            });
            Navigator.pop(context);
          },
        ),
      ],
    );
  },
);