java - 无法在 RealmObject 子类中创建 ArrayList

Question

我有一个类，它是 RealmObject 的子类，我想在该类中创建 arraylist，它将由 gson 反序列化，当我开始构建项目时出现编译时错误

Error:Type 'java.util.ArrayList<my_package.MessageContainerObject.Test>' of field 'messages' is not supported

这是我的课

open class MessageContainerObject : RealmObject() {
   @SerializedName("from")
   var from = ""
   @SerializedName("messages")
   var messages = ArrayList<Test>()

   class Test
}

如果我删除父类，一切都会正常

Answer 1

您可以将消息定义为RealmList来自文档:

RealmList has two modes: A managed and unmanaged mode. In managed mode all objects are persisted inside a Realm, in unmanaged mode it works as a normal ArrayList.

https://realm.io/docs/java/latest/api/io/realm/RealmList.html