Socket in iOS

来源：互联网发布：ubuntu花屏编辑：程序博客网时间：2024/05/24 01:51

TCP based Socket (also can use AsynSocket lib)

NSInputStream *inputStream;
NSOutputStream *outputStream;

- (void)connect
{
CFReadStreamRef readStream;
CFWriteStreamRef writeStream;

CFStreamCreatePairWithSocketToHost(NULL, (__bridgeCFStringRef)(@"127.0.0.1"),80, &readStream, &writeStream);
inputStream = (__bridgeNSInputStream *)readStream;
outputStream = (__bridgeNSOutputStream *)writeStream;

[inputStream setDelegate:self];
[outputStream setDelegate:self];

[inputStreamscheduleInRunLoop:[NSRunLoopcurrentRunLoop] forMode:NSDefaultRunLoopMode];
[outputStreamscheduleInRunLoop:[NSRunLoopcurrentRunLoop] forMode:NSDefaultRunLoopMode];

[inputStream open];
[outputStream open];
}

- (void)sendMessage:(NSString *)message
{
NSData *data = [[NSDataalloc] initWithData:[messagedataUsingEncoding:NSASCIIStringEncoding]];
[outputStreamwrite:[data bytes]maxLength:[data length]];
}

UDP based socket (use AsyncUdpSocket lib)
- Copy AsyncUdpSocket.h and AsyncUdpSocket.m to your project.
- Conform to AsyncUdpSocketDelegate for example,
  - @interface XXXViewController :UIViewController <AsyncUdpSocketDelegate>
- - (void)initUdpSocket
  {
  asyncUdpSocket = [[AsyncUdpSocketalloc]initWithDelegate:self];
  }
  
  - (void)sendMessage:(NSString *)message
  {
  NSData *data = [[NSDataalloc] initWithData:[messagedataUsingEncoding:NSUTF8StringEncoding]];
  BOOL success = [asyncUdpSocketsendData:data toHost:@"127.0.0.1"port:8888 withTimeout:-1 tag:1];
  NSLog(@"send upd complete: %d", success);
  }