安卓Socket连接实现连接实现发送接收数据，openwrt wifi转串口连接单片机实现控制

来源：互联网发布：公务用车易软件下载编辑：程序博客网时间：2024/04/30 14:57

安卓Socket连接实现连接实现发送接收数据，openwrt wifi转串口连接单片机实现控制

socket 连接采用流的方式进行发送接收数据，采用thread线程的方式。

什么是线程？
这里写图片描述

详细代码介绍：

博文来源：http://blog.csdn.net/zhaocundang 如果你对代码有些疑问，请在下面留言来探讨，或者加我的QQ463431476一起学习进步！

  //线程mRunnable启动        private Runnable    mRunnable   = new Runnable()             {                public void run()                {                      try                     {                                       //连接服务器                        mSocketClient = new Socket(wifiurl,Integer.parseInt(wificom));                         //取得输入、输出流                        mBufferedReaderClient = new BufferedReader(new InputStreamReader(mSocketClient.getInputStream()));                        mPrintWriterClient = new PrintWriter(mSocketClient.getOutputStream(), true);                        recvMessageClient = "wifi成功连接";//消息换行                    // Toast.makeText(getActivity(),"wifi连接成功",Toast.LENGTH_SHORT).show();                        Message msg = new Message();                        msg.what = 1;                        mHandler.sendMessage(msg);                                   }                    catch (Exception e)                     {                        recvMessageClient = "连接错误！";//消息换行                        Message msg = new Message();                        msg.what = 1;                        mHandler.sendMessage(msg);                        return;                    }                         setRecvMessage();                }            };       public void setRecvMessage(){                char[] buffer = new char[256];            int count = 0;            while (true)            {                try                {                     if((count = mBufferedReaderClient.read(buffer))>0)                    {                                               recvMessageClient = getInfoBuff(buffer, count);//将接收的数据放入数组                        Thread.sleep(500);                        Message msg = new Message();                        msg.what = 1;                        mHandler.sendMessage(msg);                     }                }                catch (Exception e)                {                    recvMessageClient = "接收异常:" + e.getMessage() + "\n";//消息换行                    Message msg = new Message();                    msg.what = 0;                    mHandler.sendMessage(msg);                }            }       }       //handler用于线程中更新界面数据            Handler mHandler = new Handler()            {                                     public void  handleMessage(Message msg)                                                         {                                                               super.handleMessage(msg);                       if(msg.what == 0)                      {                         Toast.makeText(getActivity(),recvMessageClient,Toast.LENGTH_SHORT).show();//刷新消息机制                      }                      else if(msg.what == 1)                      {                        try                        {                             ////  String  result = recvMessageClient;                               // Toast.makeText(getActivity(),result,Toast.LENGTH_SHORT).show(); //接收消息的                              String [] results = recvMessageClient.split("\\.");;                              // Toast.makeText(getActivity(),results[3],Toast.LENGTH_SHORT).show(); //接收消息的                                 /*                                 Intent intent=new Intent();                                intent.putExtra("temp",results[0]);                                intent.putExtra("humi",results[2]);                                intent.setAction("zcd.netanything.temp");                                 getActivity().sendBroadcast(intent);                                   */                        }catch(Exception e)                        {                            // Toast.makeText(getActivity(),"无法获取数据，检查网络是否连接！",Toast.LENGTH_SHORT).show();//刷新消息机制                        }                      }                  }                                              };         //接收处理        private String getInfoBuff(char[] buff, int count)                    {                        char[] temp = new char[count];                        for(int i=0; i<count; i++)                        {                            temp[i] = buff[i];                        }                            return new String(temp);                    }        /*public void onDestroy() {            super.onDestroy();            if (isConnect)             {                               isConnect = false;                try {                    if(mSocketClient!=null)                    {                        mSocketClient.close();                        mSocketClient = null;                        //mThreadvideo.destroy();                        mPrintWriterClient.close();                        mPrintWriterClient = null;                        recvMessageClient = "网络端口成功";//消息换行                        Message msg = new Message();                        msg.what = 0;                        mHandler.sendMessage(msg);                    }                } catch (IOException e) {                    e.printStackTrace();                }                mThreadClient.interrupt();            }        }        */

按键触发，开启线程：

  public void onClick(View v) {        // TODO Auto-generated method stub        switch(v.getId()){        case R.id.button1:            mPrintWriterClient.print("f");            //mPrintWriterClient.print("t");            mPrintWriterClient.flush();//清空         Toast.makeText(getActivity(),"前进",Toast.LENGTH_SHORT).show();         break;        case R.id.button2:             mPrintWriterClient.print("b");            // mPrintWriterClient.print("t");             mPrintWriterClient.flush();             Toast.makeText(getActivity(),"后退",Toast.LENGTH_SHORT).show();            break;        case R.id.button3:            mPrintWriterClient.print("l");        //  mPrintWriterClient.print("t");            mPrintWriterClient.flush();            Toast.makeText(getActivity(),"向左",Toast.LENGTH_SHORT).show();            break;        case R.id.button4:            mPrintWriterClient.print("r");        //  mPrintWriterClient.print("t");            mPrintWriterClient.flush();              Toast.makeText(getActivity(),"向右",Toast.LENGTH_SHORT).show();            break;        case R.id.button5:             if(!isConnect)          {            //开启mThreadClient线程            mThreadClient = new Thread(mRunnable);            mThreadClient.start();            Toast.makeText(getActivity(),"尝试连接网络",500).show();          }          else {              onDestroy();              isConnect=false;             }            break;        //case R.id.button6:            //关闭wifi        /*  if (isConnect)             {                               isConnect = false;                try {                    if(mSocketClient!=null)                    {                        mSocketClient.close();                        mSocketClient = null;                        //mThreadvideo.destroy();                        mPrintWriterClient.close();                        mPrintWriterClient = null;                        recvMessageClient = "网络端口成功";//消息换行                        Message msg = new Message();                        msg.what = 0;                        mHandler.sendMessage(msg);                    }                } catch (IOException e) {                    e.printStackTrace();                }                mThreadClient.interrupt();            }             */            //   break;        }    }

项目演示：

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