Android Socket 与 IOS Socket

最近做了一个项目，支持Android和ios两个平台。

这个项目中会用到一些简单的Socket通信，所以就有机会接触到了Android和ios两个平台的Socket实现。

现在将android和ios的Socekt做一些总结：

Android:

 

//建立Socket连接 public boolean connect() throws IOException {
        LogUtils.LOGI(TAG, "Conect to socket in "); // Close socket first.  close(); if (null == mControlSock) { try {
                mControlSock = PlainSocket.createPlainSocket(mRemoteAddr,
                        SOCKET_PORT, LONG_TIMEOUT);
                setTimeout();
                initStreams();
                isCamMode = -1; // isConnected = true; } catch (IOException ex) { if (null != mControlSock) {
                    mControlSock.close();
                }
                mControlSock = null; // isConnected = false; // throw ex;  ex.printStackTrace();
            }
        }
        LogUtils.LOGI(TAG, "Conenect socket status = " + isConnected()); return isConnected();
    } //断开Socket连接 public void close() throws IOException {
        IOException ex = null; if (null != mWriter) { try {
                mWriter.close();
                mWriter = null;
            } catch (IOException e) {
                ex = e;
            }
        } if (null != mReader) { try {
                mReader.close();
                mReader = null;
            } catch (IOException e) {
                ex = e;
            }
        } if (null != mControlSock) { try {
                mControlSock.close();
                mControlSock = null;
            } catch (IOException e) {
                ex = e;
            }
        } if (null != ex) { throw ex;
        }
    } //发送命令到Server端 public void writeCommand(String command) throws IOException {
        LogUtils.LOGI(TAG, "writeCommand ---> " + command); if (null == mWriter) { return;
        } try {
            mWriter.write(command + "\r\n");
            mWriter.flush();
        } catch (IOException ex) { throw new IOException(ex.getMessage());
        }
    } //读取Server端消息的线程 Runnable mReadSocketRunnable = new Runnable() {

        @Override public void run() { try { while (mCanReadSocekt) { // Thread.sleep(mReadInterval); String result = SocketClient.getInstance().readLine(); if (null == result || result.length() <= 1) continue;

                    dispatchResponseFromDV(result);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    };

IOS:

//调用此接口与socket连接
- (void)connect{ if (DV_CONNECTION_CONNECTED == _connectStatus) return;
    
    CFStreamCreatePairWithSocketToHost(NULL, (CFStringRef)@"10.10.1.1", 8150, &_readStream, &_writeStream);
    
    inputStream = (NSInputStream *)_readStream; // ivar  [inputStream setDelegate:self];
    [inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [inputStream open];
    
    outputStream = (NSOutputStream *)_writeStream; // ivar  [outputStream setDelegate:self];
    [outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [outputStream open];
    _connectStatus = DV_CONNECTION_CONNECTING;
}

//调用此接口与socket断开连接 - (void)disConnect{
    _connectStatus = DV_CONNECTION_DISCONNECTED; if (inputStream){
        [inputStream close];
        inputStream = nil;
    } if (outputStream){
        [outputStream close];
        outputStream = nil;
    }
    
    [self notifyDisConnected];
}

//获取socket的连接状态 - (int)connectStatus{ return _connectStatus;
}

//注册连接状态的Delegate - (void)registerDVConnectionChangedDelegate:(id<DVConnectionChangedDelegate>)delegate { if (nil == _dvConnectionChangedDelegates || nil == delegate) return; if (DV_CONNECTION_CONNECTED == [self connectStatus])
        [delegate onDVConnected]; else if (DV_CONNECTION_DISCONNECTED == [self connectStatus])
        [delegate onDVDisConnected]; else if (DV_CONNECTION_CONNECT_FAILED == [self connectStatus])
        [delegate onConnectedFailed];
    
    [_dvConnectionChangedDelegates addObject:delegate];
}

//反注册连接状态的Delegate - (void)unregisterDVConnectionChangedDelegate:(id<DVConnectionChangedDelegate>)delegate { if (nil == _dvConnectionChangedDelegates || nil == delegate) return;
    
    [_dvConnectionChangedDelegates removeObject:delegate];
}

//发送命令给Server - (BOOL)sendCommand:(NSString *)string { while (true) { if ([outputStream hasSpaceAvailable]){
            NSData *data = [[NSData alloc] initWithData:[string dataUsingEncoding:NSASCIIStringEncoding]];
            [outputStream write:[data bytes] maxLength:[data length]];
            NSLog(@"write command to dv: %@", string); return YES;
        }
    } return NO;
}

//Socket回调，可以知道Socket的连接状态，收到Server端发来的数据等 - (void)stream:(NSStream *)theStream handleEvent:(NSStreamEvent)streamEvent { switch (streamEvent) { case NSStreamEventNone:
            [self notifyConnectedFailed];
            NSLog(@"can not connect to socket"); break; case NSStreamEventOpenCompleted: if (theStream == inputStream)
            {
                [self notifyConnected];
            }
            NSLog(@"Stream opened"); break; case NSStreamEventHasSpaceAvailable: { break;
        } case NSStreamEventHasBytesAvailable: if (theStream == inputStream) {
                uint8_t buffer[1024]; int len; while ([inputStream hasBytesAvailable]) {
                    len = [inputStream read:buffer maxLength:sizeof(buffer)]; if (len > 0) { //一行作位一次会话传给外边解析 Iterator buff. uint8_t tmp_buffer[1024]; int tmp_buffer_start = 0; for (int i = 0; i < len; ++i)
                        { if ('\n' == buffer[i])
                            { for (int j = tmp_buffer_start; j < i + 1; ++j)
                                {
                                    tmp_buffer[j - tmp_buffer_start] = buffer[j];
                                }
                                NSString *output = [[NSString alloc] initWithBytes:tmp_buffer length:(i - tmp_buffer_start + 1) encoding:NSASCIIStringEncoding]; if (nil != output) {
                                    [self notifyNewMessage:output];
                                    NSLog(@"s: %@", output);
                                }
                                
                                [output release];
                                
                                memset(tmp_buffer, 0, sizeof(uint8_t) * 1024);
                                tmp_buffer_start = i + 1;
                            }
                        }
                    }
                }
                
            } break; case NSStreamEventErrorOccurred:
            NSLog(@"Can not connect to the host!"); // [self notifyConnectedFailed]; break; case NSStreamEventEndEncountered:
            NSLog(@"Closing stream...");
            [theStream close];
            [theStream removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
            [theStream release];
            theStream = nil; break; default:
            NSLog(@"Unknown event");
    }
}