藍懿教育 UDP Socket

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先匯入：AsyncUdpSocket.h、AsyncUdpSocket.m

 

添加<AsyncUdpSocketDelegate>協議

 

建立：@property (nonatomic, strong)AsyncUdpSocket *myUDPSocket;

 

- (void)viewDidLoad {

    [super viewDidLoad];

 

    self.myUDPSocket = [[AsyncUdpSocket alloc]initWithDelegate:self];

    //綁定連接埠

    [self.myUDPSocket bindToPort:9000 error:nil];

    //開啟廣播

    [self.myUDPSocket enableBroadcast:YES error:nil];

//    開始接收資料

    [self.myUDPSocket receiveWithTimeout:-1 tag:0];

}

 

-(BOOL)onUdpSocket:(AsyncUdpSocket *)sock didReceiveData:(NSData *)data withTag:(long)tag fromHost:(NSString *)host port:(UInt16)port{

    

    if (![host hasPrefix:@":"]) {

        NSString *string = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];

        

        NSLog(@"%@：%@",host,string);

    }

    

    [self.myUDPSocket receiveWithTimeout:-1 tag:0];

 

    return YES;

}

- (IBAction)clicked:(id)sender {

    

    [self.myUDPSocket sendData:[@"哈哈哈" dataUsingEncoding:NSUTF8StringEncoding] toHost:@"255.255.255.255" port:9000 withTimeout:-1 tag:0];   

}

 

藍懿教育 UDP Socket