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");    }}

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