iOS+node.js使用Socket.IO框架进行实时通信示例

{
 "name": "socket-chat-example",
 "version": "0.0.1",
 "description": "my first socket.io app",
 "dependencies": {}
}

npm install --save express@4.10.2

npm install --save socket.io

 
  
  
 
 
  

  

   Send
  
 

var app = require('express')();
var http = require('http').Server(app);
var io  = require('socket.io')(http);

app.get('/',function(req,res){
  res.sendfile(__dirname + '/index.html');
});
http.listen(3000,function () {
  console.log('listien 3000');
});

use_frameworks!

target 'SocketIO_Chat_Example' do #项目名
  pod 'Socket.IO-Client-Swift', '~> 8.2.0'
end

on(_ event: String, callback: NormalCallback)

emit(_ event: String, _ items: AnyObject...)

var socketArray = new Array();

io.on('connection', function(socket){
  var islogin = false;
  console.log('**********新加入了一个用户*********',socket.id);
  socket.on('login',function (userId) {
    if(islogin) return;
    socket.userId = userId;
    socketArray.push(socket);
    islogin = true;

  });
  socket.on('privateMessage',function (data) {
    console.log(data);
  })
  socket.on('chat message', function(data){
    var to  = data.toUser;
    var message = data.message;
    for(var i = 0;i

- (SocketIOClient *)client{
  if (!_client) {
    NSURL* url = [[NSURL alloc] initWithString:@"http://localhost:3000"];
    _client = [[SocketIOClient alloc] initWithSocketURL:url config:@{@"log": @YES, @"forcePolling": @YES}];

  }
  return _client;
}

- (void)connection{

  [self.client on:@"connect" callback:^(NSArray* data, SocketAckEmitter* ack) {
    NSLog(@"*************\n\niOS客户端上线\n\n*************");
    [self.client emit:@"login" with:@[@"30342"]];
  }];
  [self.client on:@"chat message" callback:^(NSArray * _Nonnull event, SocketAckEmitter * _Nonnull ack) {
    if (event[0] && ![event[0] isEqualToString:@""]) {
      [self.messageArray insertObject:event[0] atIndex:0];
      [self.messageTableView insertRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:0 inSection:0]] withRowAnimation:UITableViewRowAnimationTop];
    }
  }];
  [self.client on:@"privateMessage" callback:^(NSArray * _Nonnull event, SocketAckEmitter * _Nonnull ack) {
    if (event[0] && ![event[0] isEqualToString:@""]) {
      [self.messageArray insertObject:event[0] atIndex:0];
      [self.messageTableView insertRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:0 inSection:0]] withRowAnimation:UITableViewRowAnimationTop];
    }
  }];
  [self.client on:@"disconnect" callback:^(NSArray * _Nonnull event, SocketAckEmitter * _Nonnull ack) {
    NSLog(@"*************\n\niOS客户端下线\n\n*************%@",event?event[0]:@"");
  }];
  [self.client on:@"error" callback:^(NSArray * _Nonnull event, SocketAckEmitter * _Nonnull ack) {
    NSLog(@"*************\n\n%@\n\n*************",event?event[0]:@"");
  }];
  [self.client connect];

}
//按钮点击事件
- (IBAction)sendMessage:(id)sender {
  if (self.inputView.text.length>0) {

    [self.client emit:@"chat message" with:@[@{@"toUser":@"30621",@"message":self.inputView.text}]];
    [self.messageArray insertObject:self.inputView.text atIndex:0];
    [self.messageTableView insertRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:0 inSection:0]] withRowAnimation:UITableViewRowAnimationTop];
    self.inputView.text = @"";
  }

}