ViewController.h

1 #import 
     
       2 #import "AsyncUdpSocket.h" 3  4 @interface ViewController : UIViewController 5 
      
        6 { 7     IBOutlet UITextField *ipField; 8     IBOutlet UITextField *sendField; 9     IBOutlet UITextView *contentView;10     11     AsyncUdpSocket *recvSocket;12     AsyncUdpSocket *sendSocket;13 }14 15 -(IBAction)sendText:(id)sender;16 17 @end
      
     

 

ViewController.m

1 #import "ViewController.h" 2  3 @implementation ViewController 4  5 #pragma mark - viewDidLoad 6  7 - (void)viewDidLoad 8 { 9     [super viewDidLoad];10     11     //服务端12     recvSocket = [[AsyncUdpSocket alloc]initWithDelegate:self];13     //客户端14     sendSocket = [[AsyncUdpSocket alloc]initWithDelegate:self];15     16     //服务端开始等待别的客户端的连接17     //65535   >500018     [recvSocket bindToPort:5888 error:nil];19     [sendSocket bindToPort:5999 error:nil];20     21     //等待接受数据22     [recvSocket receiveWithTimeout:-1 tag:100];23     //什么时候接受到了数据24 }25 26 #pragma mark - AsyncUdpSocketDelegate27 //调用这个方法的时候证明接收到了数据28 -(BOOL)onUdpSocket:(AsyncUdpSocket *)sock didReceiveData:(NSData *)data withTag:(long)tag fromHost:(NSString *)host port:(UInt16)port29 {30     NSString *str = [[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding]autorelease];31     contentView.text = [NSString stringWithFormat:@"%@\n%@:%@",contentView.text,host,str];32     [recvSocket receiveWithTimeout:-1 tag:100];33     return YES;34 }35 //这里就发送成功了36 -(void)onUdpSocket:(AsyncUdpSocket *)sock didSendDataWithTag:(long)tag37 {38 }39 40 #pragma mark - .h event41 -(void)sendText:(id)sender42 {43     NSData *data = [sendField.text dataUsingEncoding:NSUTF8StringEncoding];44     [sendSocket sendData:data toHost:ipField.text port:5888 withTimeout:60 tag:100];45     46 }47 @end