android - 从另一个类更新 RecyclerView

Question

我会尽量简短:

我有三个类必须在此交互:

1. 服务器，它接收消息(在线程中)。
2. 联系人，它在其类中(在每个对象中)存储消息。
3. 属于每个用户的聊天 Activity ，必须显示相应对象的消息，其思想是它是一个RecyclerView。(一个 Activity )

服务器收到一条消息，这条消息将被添加到特定联系人的聊天中，然后必须更新 RecyclerView。

这是基本的联系人类代码:

public class Contact implements Serializable {

 private String name;
 private String ip;
 //Here would be a variable that contains the chat strings

 public Contact (String name, String ip){
    this.name = name;
    this.ip = ip;
 }

 public String getName() {
    return name;
 }

 public void setName(String name) {
    this.name = name;
 }

 public String getIp() {
    return ip;
 }

 public void setIp(String ip) {
    this.ip = ip;
 }
}

然后是在选择特定用户时启动的聊天 Activity ，它包含我希望消息所在的 RecyclerView。

My problem is that, how to make the messages that are stored in the variable of a specific object appear in the list.

从已经非常感谢你。

Answer 1

你可以使用数据类而不是序列化

public class Data {

private String text;
private String uid;
private String tnviews;
private String numberlikes;
public Data(String text,String tnviews,String numberlikes,String uid) {
    this.text = text;
    this.tnviews = tnviews;
    this.numberlikes = numberlikes;
    this.uid = uid;
}

public String getText() {
    return text;
}

public void setText(String text) {
    this.text = text;
}
/////////// VIEWS
public String getViews() {
    return tnviews;
}

public void setViews(String tnviews) {
    this.tnviews = tnviews;
}
////////     likes
public String getLikes() {
    return numberlikes;
}

public void setLikes(String numberlikes) {
    this.numberlikes = numberlikes;
}

public String getUid() {
    return uid;
}

public void setUid(String uid) {
    this.uid = uid;
}