Firebase一对一聊天android [英] Firebase one to one chat android

问题描述

我对创建一对一firbase聊天应用程序感到困惑.

I am bit confused to create one to one firbase chat application .

我的要求是我需要显示每个用户的聊天列表(用户聊天的历史记录).用户从列表中单击一个用户后，我要显示与所选用户的一对一聊天窗口.

My requirement is i need to show the chat list for each users(History of user chats). Once the user clicks one user from list i want to show the one to one chat window with selected user.

但是使用我的格式，当我向任何用户发送消息时，所有用户都收到了该消息，并且我无法显示特定用户的过滤后的聊天列表，它显示了Firebase数据库中的所有聊天记录

but with my format when i send a message to any user all the user got that message and i cant show filtered chat list for particular user it show all the chat history from firebase database

这是我在firebase中的json结构

this is my json strucure in firebase

Java代码

    static final String CHAT_REFERENCE = "lifegoal";

ChatFirebaseAdapter firebaseAdapter = new  ChatFirebaseAdapter(mFirebaseDatabaseReference.child(CHAT_REFERENCE), userModel.getName(), this);
    rvListMessage.setLayoutManager(mLinearLayoutManager);
    rvListMessage.setAdapter(firebaseAdapter);

推荐答案

首先，您必须更改数据库的结构方式，以便可以为每个一对一的聊天创建新的线程或会话ID.例如，您可以尝试如下操作:

First, you'll have to change the way your database is structured so that you can create a new thread or conversation id for each one to one chat. For example, you can try something like this:

- lifegoal
    - senderId-receiverId
        - KNa0...
            - message
            - timestamp
            + usermodel

这将允许您创建两个用户唯一的新threadId.

This will allow you create a new threadId unique to both users.

唯一的警告是，您需要检查Firebase中哪个孩子有效，才能知道要使用哪个孩子.例如，您可以尝试执行以下操作:

The only caveat is that you'll need to check which child is valid in firebase to know which one to use. For instance, you can try something like this:

字符串类型_1 = senderId +"_" + receiverId;字符串type_2 =接收者ID +"_" +发送者ID；

然后按如下所示签入 onDataChange()回调:

And then check in your onDataChange() callback like below:

   `@Override
    public void onDataChange(DataSnapshot dataSnapshot) {
        if (dataSnapshot.hasChild(type_1)) {
            // do something...
        } else if (dataSnapshot.hasChild(type_2)) {
            // do something...
        } else {
            // do something...
        }
    }`

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