如何对实例类列表进行排序取决于其在飞镖或颤振中的属性[重复]

Question

我有一个List<Contact>，其中的类联系人如下所示：

class Contact {
    Contact({
        this.id,
        this.name,
        this.phone,
        this.job,
        this.company,
        this.image,
        this.email,
    });

    int? id;
    String? name;
    String? phone;
    String? job;
    String? company;
    String? image;
    String? email;

}

问题是，如何通过比较 Contact.name 对 List 进行排序？ 因为我想按 A-Z 升序对列表进行排序

Answer 1

您可以将比较函数传递给 List.sort。

someObjects.sort((a, b) => a.someProperty.compareTo(b.someProperty));

或列表 mList = (mList..sort()).reversed.toList();

您可以从此链接Sort a list of objects in Flutter (Dart) by property value获得帮助