iOS开发--GCDAsyncSocket应用

GCDAsyncSocket

GCDAsyncSocket使用🍓连接socket🍊重连🍉pragma mark - 发送🥭关闭socket 🍌GCDAsyncSocketDelegate

GCDAsyncSocket是CocoaAsyncSocket第三方库中的其中一个类，本文介绍的就是基于这一个类来做快速的socket通信开发

GCDAsyncSocket使用

通过pod导入 pod ‘CocoaAsyncSocket’ 导入头文件 #import <GCDAsyncSocket.h> 声明变量 遵循代理

@interface ViewController ()<GCDAsyncSocketDelegate> @property (nonatomic, strong) GCDAsyncSocket *socket; @end

🍓连接socket

#pragma mark - 连接socket - (void)didClickConnectSocket:(id)sender { // 创建socket if (self.socket == nil) self.socket = [[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:dispatch_get_global_queue(0, 0)]; // 连接socket if (!self.socket.isConnected){ NSError *error; [self.socket connectToHost:@"127.0.0.1" onPort:8090 withTimeout:-1 error:&error]; if (error) NSLog(@"%@",error); } }

🍊重连

#pragma mark - 连接socket - (IBAction)didClickConnectSocket:(id)sender { // 创建socket if (self.socket == nil) // 并发队列，这个队列将影响delegate回调,但里面是同步函数！保证数据不混乱，一条一条来 // 这里最好是写自己并发队列 self.socket = [[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:dispatch_get_global_queue(0, 0)]; // 连接socket if (!self.socket.isConnected){ NSError *error; [self.socket connectToHost:@"127.0.0.1" onPort:8040 withTimeout:-1 error:&error]; if (error) NSLog(@"%@",error); } }

🍉pragma mark - 发送

#pragma mark - 发送 - (IBAction)didClickSendAction:(id)sender { NSData *data = [self.contentTF.text dataUsingEncoding:NSUTF8StringEncoding]; [self.socket writeData:data withTimeout:-1 tag:10086]; }

🥭关闭socket

pragma mark - 关闭socket - (void)didClickCloseAction:(id)sender { [self.socket disconnect]; self.socket = nil; }

🍌GCDAsyncSocketDelegate

//已经连接到服务器 - (void)socket:(GCDAsyncSocket *)sock didConnectToHost:(nonnull NSString *)host port:(uint16_t)port{ NSLog(@"连接成功 : %@---%d",host,port); [self.socket readDataWithTimeout:-1 tag:10086]; } // 连接断开 - (void)socketDidDisconnect:(GCDAsyncSocket *)sock withError:(NSError *)err{ NSLog(@"断开 socket连接 原因:%@",err); } //已经接收服务器返回来的数据 - (void)socket:(GCDAsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag{ NSLog(@"接收到tag = %ld : %ld 长度的数据",tag,data.length); [self.socket readDataWithTimeout:-1 tag:10086]; } //消息发送成功 代理函数 向服务器 发送消息 - (void)socket:(GCDAsyncSocket *)sock didWriteDataWithTag:(long)tag{ NSLog(@"%ld 发送数据成功",tag); }