Download location: https://github.com/robbiehanson/CocoaAsyncSocket
Use AsyncUdpSocket.m and AsyncUdpSocket.h
Because the project is a Swift project, to use the objecitive-c library should be imported in the Header file.
1. Copy AsyncUdpSocket.m and AsyncUdpSocket.h to the project, xcode will ask you whether to create a Bridge file, confirm to create.
2. In your project name-Bridging-Header.h file add:
1
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#import "AsyncUdpSocket.h" |
ViewControler.swift
//
// ViewController.swift
// udp_test
//
// Created by on 16/5/9.
// Copyright © 2016年. All rights reserved.
//
import UIKit
class ViewController: UIViewController,AsyncUdpSocketDelegate{
var udpClient = AsyncUdpSocket ();
override func viewDidLoad() {
super.viewDidLoad();
// Do any additional setup after loading the view, typically from a nib.
}
// send manually
@IBAction func btn_send(sender: UIButton) {
let data = "Hi, im wang".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true);
udpClient.sendData(data, toHost: "192.168.1.102", port: 60002, withTimeout: -1, tag: 0);
//Start listening for reception, and automatically disconnect if there is no message reply within 10 seconds, only receive once,//If the timeout is set to -1, there is no timeout limit
udpClient.receiveWithTimeout(10, tag: 0);
}
// Manually close the connection
@IBAction func close(sender: UIButton) {
udpClient.close();
}
// manual connection
@IBAction func btn_conn(sender: UIButton) {
udpClient = AsyncUdpSocket(delegate: self);
}
//If the local send is successful, listen
func onUdpSocket(sock: AsyncUdpSocket!, didSendDataWithTag tag: Int) {
print("send success");
}
//listen to receive
func onUdpSocket(sock: AsyncUdpSocket!, didReceiveData data: NSData!, withTag tag: Int, fromHost host: String!, port: UInt16) -> Bool {
let str = NSString(data: data, encoding: NSUTF8StringEncoding);
print("receive:\(str)");
//If you can't receive it all at once, there are more
udpClient.receiveWithTimeout(10, tag: 0);
return true;
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
//
import UIKit
class ViewController: UIViewController,AsyncUdpSocketDelegate{
var udpClient = AsyncUdpSocket ();
override func viewDidLoad() {
super.viewDidLoad();
// Do any additional setup after loading the view, typically from a nib.
}
// send manually
@IBAction func btn_send(sender: UIButton) {
let data = "Hi, im wang".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true);
udpClient.sendData(data, toHost: "192.168.1.102", port: 60002, withTimeout: -1, tag: 0);
//开始监听接收,并如10秒内无消息回复就自动断开连接,只接收一次,//如果设置超时为-1 则没有超时限制
udpClient.receiveWithTimeout(-1, tag: 0);
}
//手动关闭连接
@IBAction func close(sender: UIButton) {
udpClient.close();
}
//手动连接
@IBAction func btn_conn(sender: UIButton) {
udpClient = AsyncUdpSocket(delegate: self);
}
//如果本地发送成功 监听
func onUdpSocket(sock: AsyncUdpSocket!, didSendDataWithTag tag: Int) {
print("send success");
}
//监听接收
func onUdpSocket(sock: AsyncUdpSocket!, didReceiveData data: NSData!, withTag tag: Int, fromHost host: String!, port: UInt16) -> Bool {
let str = NSString(data: data, encoding: NSUTF8StringEncoding);
print("receive:\(str)");
//If you can't receive it all at once, there are more
udpClient.receiveWithTimeout(-1, tag: 0);
return true;
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}