一秒学会安卓tcp基于netty4.x心跳,断线重连,状态监听

从网上找了好多信息，基于安卓完整的tcp连接的各种处理没有完整的案例，基于业务开发，必须用到tcp，并需要稳定的连接，开发并做了大量的测试与优化工作，希望能帮到有同样需求的人！！！

好了，废话不多说，直接上代码！！

第一步：依赖netty-all-4.0.23.Final

下载地址： http://download.csdn.net/detail/android_koukou/9887088

第二步：初始化netty

  public NettyClientBootstrap(Context context, String[] actions, int port, String host) {
        this.actions = actions;
        this.context = context;
        this.port = port;
        this.host = host;
        //初始化连接
        eventLoopGroup = new NioEventLoopGroup();
        bootstrap = new Bootstrap();
        bootstrap.channel(NioSocketChannel.class);
        bootstrap.option(ChannelOption.SO_KEEPALIVE, true);
        bootstrap.option(ChannelOption.RCVBUF_ALLOCATOR, new AdaptiveRecvByteBufAllocator(1024, 1024 * 32, 1024 * 64));
        bootstrap.group(eventLoopGroup);
        bootstrap.remoteAddress(host, port);
        bootstrap.handler(new ChannelInitializer() {
            @Override
            protected void initChannel(SocketChannel socketChannel) throws Exception {
                socketChannel.pipeline().addLast(new IdleStateHandler(20, 10, 0));
                socketChannel.pipeline().addLast( new NettyClientHandler());
            }
        });
    }

第三步：连接netty

/**
     * first init tcp connect
     */
    private ChannelFuture future = null;
    public void start() {
        LogUtil.printError("tcp", "connecing---------" + host + port);
        try {
            future = bootstrap.connect(new InetSocketAddress(host, port)).sync();
            if (future.isSuccess()) {
                socketChannel = (SocketChannel) future.channel();
                return;
            } else {
                LogUtil.printError("tcp", "TcpUnConnect------" + "future is unConnect");
            }
        } catch (Exception e) {
            LogUtil.printError("tcp", "TcpUnConnect------" + e.toString());
        }
      
    }

第四步：发送Tcp消息：

   /**
     * send tcp msg
     * @param msg
     */
    public void startNetty(final TCPData msg) {
        ThreadPoolProxy.getInstance(5, 5, 12 * 1000).executeTask(new Runnable() {
            @Override
            public void run() {
                if (isConnect) {
                    socketChannel.writeAndFlush(msg);
                }
            }
        });

    }

其他：关于Tcp监听部分代码：

 public class NettyClientHandler extends SimpleChannelInboundHandler