Swift开发：GCDAsyncSocket通信之TCP 客户端
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1 功能需求： 1 在Swift下使用GCDAsyncSocket实现简单的信息收发功能 2 Mac下为tcp客户端，windows下为tcp服务器 2 效果图：
3 swift代码：需要导入GCDAsyncSocket库文件，可去github下载
import UIKit class ViewController: UIViewController,GCDAsyncSocketDelegate { @IBOutlet var serveripInput: UITextField!
@IBOutlet var msgInput: UITextField!
@IBOutlet var conBtn: UIButton!
@IBOutlet var sendBtn: UIButton!
@IBOutlet var msgView: UITextView!
let serverPort: UInt16 = 9050
var clientSocket: GCDAsyncSocket!
var mainQueue = dispatch_get_main_queue()
override func viewDidLoad() {
super.viewDidLoad()
} //连接服务器按钮事件 @IBAction func conBtnClick(sender: AnyObject) {
do { clientSocket = GCDAsyncSocket() clientSocket.delegate = self clientSocket.delegateQueue = dispatch_get_global_queue(0,0) try clientSocket.connectToHost(serveripInput.text!,onPort: serverPort) conBtn.backgroundColor = UIColor.blueColor() }
catch { print("error") conBtn.backgroundColor = UIColor.redColor() }
}
func socket(sock: GCDAsyncSocket!,didConnectToHost host: String!,port: UInt16) {
print("与服务器连接成功！")
clientSocket.readDataWithTimeout(-1,tag: 0)
}
func socketDidDisconnect(sock: GCDAsyncSocket!,withError err: NSError!) { print("与服务器断开连接") } func socket(sock: GCDAsyncSocket!,didReadData data: NSData!,withTag tag: Int) { // 1 获取客户的发来的数据 ，把 NSData 转 NSString let readClientDataString: NSString? = NSString(data: data,encoding: NSUTF8StringEncoding) print(readClientDataString!) // 2 主界面ui 显示数据 dispatch_async(mainQueue,{
let showStr: NSMutableString = NSMutableString() showStr.appendString(self.msgView.text) showStr.appendString(readClientDataString! as String) showStr.appendString("n") self.msgView.text = showStr as String
})
// 3.处理请求，返回数据给客户端 ok let serviceStr: NSMutableString = NSMutableString() serviceStr.appendString("okn") clientSocket.writeData(serviceStr.dataUsingEncoding(NSUTF8StringEncoding),withTimeout: -1,tag: 0)
// 4 每次读完数据后，都要调用一次监听数据的方法 clientSocket.readDataWithTimeout(-1,tag: 0) }
//发送消息按钮事件 @IBAction func sendBtnClick(sender: AnyObject) { // 1.处理请求，返回数据给客户端 ok let serviceStr: NSMutableString = NSMutableString() serviceStr.appendString(self.msgInput.text!) serviceStr.appendString("n") clientSocket.writeData(serviceStr.dataUsingEncoding(NSUTF8StringEncoding),tag: 0) } } （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |