安卓Socket串連實現串連實現發送接收資料，openwrt wifi轉串口串連單片機實現控制，安卓openwrt

安卓Socket串連實現串連實現發送接收資料，openwrt wifi轉串口串連單片機實現控制，安卓openwrt
安卓Socket串連實現串連實現發送接收資料，openwrt wifi轉串口串連單片機實現控制

socket 串連採用流的方式進行發送接收資料，採用thread線程的方式。

什麼是線程？ 

詳細代碼介紹：

博文來源：http://blog.csdn.net/zhaocundang 如果你對代碼有些疑問，請在下面留言來探討，或者加我的QQ463431476一起學習進步！

  //線程mRunnable啟動        private Runnable    mRunnable   = new Runnable()             {                public void run()                {                      try                     {                                       //串連伺服器                        mSocketClient = new Socket(wifiurl,Integer.parseInt(wificom));                         //取得輸入、輸出資料流                        mBufferedReaderClient = new BufferedReader(new InputStreamReader(mSocketClient.getInputStream()));                        mPrintWriterClient = new PrintWriter(mSocketClient.getOutputStream(), true);                        recvMessageClient = "wifi成功串連";//訊息換行                    // Toast.makeText(getActivity(),"wifi串連成功",Toast.LENGTH_SHORT).show();                        Message msg = new Message();                        msg.what = 1;                        mHandler.sendMessage(msg);                                   }                    catch (Exception e)                     {                        recvMessageClient = "串連錯誤！";//訊息換行                        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);
　　　　　　　　　　　　　　//將接收的資料放入數組                        Thread.sleep(500);                        Message msg = new Message();                        msg.what = 1;                        mHandler.sendMessage(msg);                     }                }                catch (Exception e)                {                    recvMessageClient = "接收異常:" + e.getMessage() + "\n";//訊息換行                    Message msg = new Message();                    msg.what = 0;                    mHandler.sendMessage(msg);                }            }       }       //handler用於線程中更新介面資料            Handler mHandler = new Handler()            {                                     public void  handleMessage(Message msg)                                                         {                                                               super.handleMessage(msg);                       if(msg.what == 0)                      {                         Toast.makeText(getActivity(),recvMessageClient,Toast.LENGTH_SHORT).show();//重新整理訊息機制                      }                      else if(msg.what == 1)                      {                        try                        {                             ////  String  result = recvMessageClient;                               // Toast.makeText(getActivity(),result,Toast.LENGTH_SHORT).show(); //接收訊息的                              String [] results = recvMessageClient.split("\\.");;                              // Toast.makeText(getActivity(),results[3],Toast.LENGTH_SHORT).show(); //接收訊息的                                 /*                                 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(),"無法擷取資料，檢查網路是否串連！",Toast.LENGTH_SHORT).show();//重新整理訊息機制                        }                      }                  }                                              };         //接收處理        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 = "網路連接埠成功";//訊息換行                        Message msg = new Message();                        msg.what = 0;                        mHandler.sendMessage(msg);                    }                } catch (IOException e) {                    e.printStackTrace();                }                mThreadClient.interrupt();            }        }        */

 

按鍵觸發，開啟線程：

  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(),"前進",Toast.LENGTH_SHORT).show();         break;        case R.id.button2:             mPrintWriterClient.print("b");            // mPrintWriterClient.print("t");             mPrintWriterClient.flush();             Toast.makeText(getActivity(),"後退",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)          {            //開啟mThreadClient線程            mThreadClient = new Thread(mRunnable);            mThreadClient.start();            Toast.makeText(getActivity(),"嘗試串連網路",500).show();          }          else {              onDestroy();              isConnect=false;             }            break;        //case R.id.button6:            //關閉wifi        /*  if (isConnect)             {                               isConnect = false;                try {                    if(mSocketClient!=null)                    {                        mSocketClient.close();                        mSocketClient = null;                        //mThreadvideo.destroy();                        mPrintWriterClient.close();                        mPrintWriterClient = null;                        recvMessageClient = "網路連接埠成功";//訊息換行                        Message msg = new Message();                        msg.what = 0;                        mHandler.sendMessage(msg);                    }                } catch (IOException e) {                    e.printStackTrace();                }                mThreadClient.interrupt();            }             */            //   break;        }    }  

 

項目示範：

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