一个用于控制51单片机的小APP.zip（皆可应用在毕设/课设/大作业/实训/竞赛/项目开发）

package com.qsgy.oymc; import android.content.Context; import android.view.View; import android.app.*; import android.os.*; import android.widget.*; import java.io.IOException; import java.io.PrintWriter; import java.net.Socket; import java.util.*; public class ControlActivity extends Activity { public static Context context; ListView lv; ArrayList<Map<String,Object>> items=new ArrayList<Map<String,Object>>();//the datas SimpleAdapter adepter;//适配器 LinearLayout wl;//白灯布局文件 LinearLayout yl; Button connect;//连接按钮 TextView isConnected;//显示是否连接的文本 EditText sendMessage;//发送内容 Button sendBtn;//发送按钮 EditText ipText;//ip地址 EditText portText;//端口 boolean isConet=false; String tagertIP=""; int tagertPort; Socket socket; PrintWriter writer; public Handler mHandler = new Handler() { public void handleMessage(Message msg) { switch (msg.what) { case 1: Toast.makeText(ControlActivity.this,"Connected ",Toast.LENGTH_LONG ).show(); isConnected.setText("已链接"); break; case 0: isConnected.setText("未链接"); break; case 2: Toast.makeText(ControlActivity.this,"Erorr"+msg.obj,Toast.LENGTH_SHORT ).show(); break; default: break; } } }; @Override protected void onCreate(Bundle savedInstanceState) { context=this;//dan li mo shi super.onCreate(savedInstanceState); setContentView(R.layout.main);//set main xml lv=(ListView)findViewById(R.id.list);//get listview ipText=(EditText) findViewById(R.id.ip_value);//ip portText=(EditText) findViewById(R.id.port_value);//port sendMessage=(EditText) findViewById(R.id.send_message); sendBtn=(Button) findViewById(R.id.send_btn); connect=(Button) findViewById(R.id.Connect); isConnected=(TextView) findViewById(R.id.isConnected); ipText.setText("192.168.4.1");//initial the text of ip portText.setText("8080"); //适配 adepter=new SimpleAdapter(this, items, R.layout.light_lv,new String[]{"name"}, new int[]{R.id.light_show}); Adapter adapter = new Adapter(); lv.setAdapter(adapter); } //连接按钮 public void Connect(View v) throws IOException { if (!isConet)//if not conneted,then to connet { //在新的线程运行 Thread t = new Thread() { @Override public void run() { tagertIP = ipText.getText().toString(); tagertPort = Integer.parseInt(portText.getText().toString()); try { // socket = new Socket(tagertIP, tagertPort); socket.setSoTimeout(3000); writer = new PrintWriter(socket.getOutputStream()); //在子线程中刷新ui Message message = new Message(); message.what = 1; mHandler.sendMessage(message);//发送message给handler isConet = true; } catch (Exception e) { //Toast.makeText(ControlActivity.this,"error"+e.toString(),Toast.LENGTH_LONG ).show(); // FIXME: 2017/12/3 e.printStackTrace(); Message message = new Message(); message.what = 2; message.obj = e.toString(); mHandler.sendMessage(message);//发送message给handler } finally { } } }; t.setName("net thread"); t.start(); }else {//if connected then socket.close(); isConnected.setText("未连接"); Toast.makeText(this,"关闭Socket",Toast.LENGTH_SHORT).show(); isConet=false; } } public void Send(View v) { if (isConet) { String sendM=sendMessage.getText().toString()+"\r\n"; writer.print(sendM); writer.flush(); Toast.makeText(this,"Sended ",Toast.LENGTH_SHORT ).show(); } } public void SendLight(String s) { if (isConet) { writer.print(s+"\r\n"); writer.flush(); } } }