LGSocketServe.m
//自己设定
#define HOST @"192.168.0.1"
#define PORT 8080
//设置连接超时
#define TIME_OUT 20
- (void)startConnectSocket
{
self.socket = [[AsyncSocket alloc] initWithDelegate:self];
[self.socket setRunLoopModes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
if ( ![self SocketOpen:HOST port:PORT] )
{
}
}
- (NSInteger)SocketOpen:(NSString*)addr port:(NSInteger)port
{
if (![self.socket isConnected])
{
NSError *error = nil;
[self.socket connectToHost:addr onPort:port withTimeout:TIME_OUT error:&error];
}
return 0;
}
宏定义一下HOST、PORT、TIME_OUT，实现startConnectSocket方法。这个时候要设置一下AsyncSocket的代理AsyncSocketDelegate。当长连接成功之后会调用：
复制代码
- (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port
{
//这是异步返回的连接成功，
NSLog(@"didConnectToHost");
}
心跳
LGSocketServe.h
复制代码@property (nonatomic, retain) NSTimer *heartTimer; // 心跳计时器
LGSocketServe.m
- (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port
{
//这是异步返回的连接成功，
NSLog(@"didConnectToHost");
//通过定时器不断发送消息，来检测长连接
self.heartTimer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(checkLongConnectByServe) userInfo:nil repeats:YES];
[self.heartTimer fire];
}
// 心跳连接
-(void)checkLongConnectByServe{
// 向服务器发送固定可是的消息，来检测长连接
