Node.js React Native、NodeJS、Socket.io
我正在尝试在我的应用程序中实现1-1私人消息功能,如果两个用户同时出现在聊天屏幕上,则可以实时交换消息,如果没有,则消息将存储在我的postgres数据库中,当用户再次打开聊天时,消息将被加载 当前使用我的代码,当两个用户的聊天室都打开时,当我尝试发送消息时,消息不会被实时发送。我需要刷新应用程序,以便更新聊天室。我认为我的套接字正在工作,因为我的控制台日志在前端和后端控制台中都被返回 我的问题是如何使这些消息生效并正确更新我的平面列表(即,新消息出现在我的倒排列表的底部) 这是我的密码: 客户端Node.js React Native、NodeJS、Socket.io,node.js,react-native,socket.io,Node.js,React Native,Socket.io,我正在尝试在我的应用程序中实现1-1私人消息功能,如果两个用户同时出现在聊天屏幕上,则可以实时交换消息,如果没有,则消息将存储在我的postgres数据库中,当用户再次打开聊天时,消息将被加载 当前使用我的代码,当两个用户的聊天室都打开时,当我尝试发送消息时,消息不会被实时发送。我需要刷新应用程序,以便更新聊天室。我认为我的套接字正在工作,因为我的控制台日志在前端和后端控制台中都被返回 我的问题是如何使这些消息生效并正确更新我的平面列表(即,新消息出现在我的倒排列表的底部) 这是我的密码: 客户
const message = route.params.message;
const [messages, setMessages] = useState([]);
const [text, setText] = useState('');
const [socket, setSocket] = useState(null);
const { user } = useAuth();
useEffect(() => {
const newsocket =io.connect(socketURL)
setMessages(message.Messages)
newsocket.on('connect', msg => {
console.log(`user: ${user.id} has joined conversation ${message.id}`)
setSocket(newsocket)
});
newsocket.on("send_message", (msg) => {
console.log("this is the chat message:", msg);
const data = [...messages];
data.push(msg);
setMessages(data);
});
return(()=>newsocket.close());
}, []);
const onSend = (ConversationId,senderId,receiverId,message) => {
messagesApi.sendMessage({ConversationId,senderId,receiverId,message});
setText("")
const to = (user.id===route.params.message.user1?
route.params.message.user2:route.params.message.user1)
socket.emit(
'message', { to: to, from: user.id, message,ConversationId });
};
const updateText=(text)=>{
setText(text);
}
<FlatList
inverted
data={messages}
keyExtractor={(item,index)=>index.toString()}
extraData={messages}
renderItem={({item,index})=>(
<>
<Text>
{moment(item.createdAt).fromNow()}
</Text>
<MessageBubble
text={item.message}
mine={item.senderId !== user.id}
/>
</>
)}
bounces={false}
/>
<View style={styles.messageBoxContainer}>
<TextInput
onChangeText={updateText}
value={text}
/>
<TouchableOpacity
onPress={()=>{
onSend(
message.id,
user.id,
(user.id===message.user1?message.user2:message.user1),
text
)}}
>
<Text>Send</Text>
</TouchableOpacity>
</View>
提前谢谢你,我已经试着解决这个问题好几个星期了,但还是不能解决。非常感谢您的帮助。经过多次尝试,多亏Srikanth对这一问题的回答,我成功地让它工作了 客户
useEffect(() => {
const newsocket =io.connect("http://192.168.1.103:9000")
setMessages(message.Messages)
newsocket.on('connect', msg => {
console.log(`user: ${user.id} has joined conversation ${message.id}`)
setSocket(newsocket)
newsocket.emit('subscribe', message.id);
});
newsocket.on("send_message", (msg) => {
console.log("this is the chat messages:", msg);
setMessages(messages => messages.concat(msg))
});
return(()=>newsocket.close());
}, []);
const onSend = (ConversationId,senderId,receiverId,message) => {
console.log("sent")
const to = (user.id===route.params.message.user1?
route.params.message.user2:route.params.message.user1)
socket.emit('message', { to: to, from: user.id, message,ConversationId });
setText("")
messagesApi.sendMessage({ConversationId,senderId,receiverId,message});
};
服务器
io.on('connection',(socket)=>{
console.log('User '+socket.id+' connected')
socket.on('subscribe', (room)=> {
console.log('joining room', room);
socket.join(room);
});
socket.on('message', (data) => {
console.log(data)
console.log('sending room post',data.ConversationId)
io.sockets.in(data.ConversationId).emit('send_message', { message:
data.message, receiverId:
data.to,senderId:data.from,conversationId:data.ConversationId });
})
})
我读过很多评论,建议不要在1-1私人信息中使用聊天室,但这是唯一可行的方法。经过多次尝试后,由于Srikanth对此的回答,我成功地让它工作起来 客户
useEffect(() => {
const newsocket =io.connect("http://192.168.1.103:9000")
setMessages(message.Messages)
newsocket.on('connect', msg => {
console.log(`user: ${user.id} has joined conversation ${message.id}`)
setSocket(newsocket)
newsocket.emit('subscribe', message.id);
});
newsocket.on("send_message", (msg) => {
console.log("this is the chat messages:", msg);
setMessages(messages => messages.concat(msg))
});
return(()=>newsocket.close());
}, []);
const onSend = (ConversationId,senderId,receiverId,message) => {
console.log("sent")
const to = (user.id===route.params.message.user1?
route.params.message.user2:route.params.message.user1)
socket.emit('message', { to: to, from: user.id, message,ConversationId });
setText("")
messagesApi.sendMessage({ConversationId,senderId,receiverId,message});
};
服务器
io.on('connection',(socket)=>{
console.log('User '+socket.id+' connected')
socket.on('subscribe', (room)=> {
console.log('joining room', room);
socket.join(room);
});
socket.on('message', (data) => {
console.log(data)
console.log('sending room post',data.ConversationId)
io.sockets.in(data.ConversationId).emit('send_message', { message:
data.message, receiverId:
data.to,senderId:data.from,conversationId:data.ConversationId });
})
})
我读过很多评论,建议不要在1-1私人信息中使用房间,但这是唯一可行的方法