c语言编写单片机wifi,单片机wifi控制app

package com.example.esp8266_gpio;

import java.io.IOException;

import java.io.PrintStream;

import java.net.Socket;

import java.net.UnknownHostException;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;

import android.os.Handler;

public class ESP8266 extends Activity

{

Handler handler = new Handler();

private final String SERVER_HOST_IP =

"192.168.4.1";

private final int SERVER_HOST_PORT =

5000;

private Button button1;

private Button Button01;

private Button Button02;

private Button Button03;

private Button Button04;

private Button Button05;

private Button Button06;

private Button Button07;

private TextView textView1;

private Socket socket;

private PrintStream output;

Runnable runnable = new Runnable() {

@Override

public void run() {

try

{

socket.sendUrgentData(0xFF);

}catch(Exception ex){

closeSocket();//断开连接

}

handler.postDelayed(this,

1000);

}

};

public void toastText(String message)

{

Toast.makeText(this,

message, Toast.LENGTH_LONG).show();

}

public void handleException(Exception e,

String prefix)

{

e.printStackTrace();

toastText(prefix +

e.toString());

}

@Override

public void onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_esp8266);

initView();

button1.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v)

{

initClientSocket();

}

});

Button01.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v)

{

closeSocket();//断开连接

}

});

Button02.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v)

{

try

{

socket.sendUrgentData(0xFF);

}catch(Exception ex){

closeSocket();//断开连接

}

sendMessage("GPIO0=0;");

}

});

Button03.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v)

{

sendMessage("GPIO0=1;");

}

});

Button04.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v)

{

sendMessage("GPIO0=2;");

}

});

Button05.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v)

{

sendMessage("GPIO0=3;");

}

});

Button06.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v)

{

sendMessage("GPIO0=4;");

}

});

Button07.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v)

{

sendMessage("GPIO0=5;");

}

});

}

public void initView()

{

button1 =

(Button)findViewById(R.id.button1);

Button01 =

(Button)findViewById(R.id.Button01);

Button02 =

(Button)findViewById(R.id.Button02);

Button03 =

(Button)findViewById(R.id.Button03);

Button04 =

(Button)findViewById(R.id.Button04);

Button05 =

(Button)findViewById(R.id.Button05);

Button06 =

(Button)findViewById(R.id.Button06);

Button07 =

(Button)findViewById(R.id.Button07);

textView1=(TextView)findViewById(R.id.textView1);

Button01.setEnabled(false);

Button02.setEnabled(false);

Button03.setEnabled(false);

Button04.setEnabled(false);

Button05.setEnabled(false);

Button06.setEnabled(false);

Button07.setEnabled(false);

textView1.setText("设备未连接");

}

public void closeSocket()

{

try

{

output.close();

socket.close();

button1.setEnabled(true);

Button01.setEnabled(false);

Button02.setEnabled(false);

Button03.setEnabled(false);

Button04.setEnabled(false);

Button05.setEnabled(false);

Button06.setEnabled(false);

Button07.setEnabled(false);

textView1.setText("设备未连接");

}

catch (IOException

e)

{

}

}

private void initClientSocket()

{

try

{

socket = new Socket(SERVER_HOST_IP, SERVER_HOST_PORT);

output = new PrintStream(socket.getOutputStream(), true,

"utf-8");

button1.setEnabled(false);

Button01.setEnabled(true);

Button02.setEnabled(true);

Button03.setEnabled(true);

Button04.setEnabled(true);

Button05.setEnabled(true);

Button06.setEnabled(true);

Button07.setEnabled(true);

textView1.setText("连接成功");

handler.postDelayed(runnable, 1000);

}

catch

(UnknownHostException e)

{

handleException(e, "unknown host exception: " +

e.toString());

}

catch (IOException

e)

{

toastText("连接错误！请检查是否连接硬件的wifi");

}

}

private void sendMessage(String msg)

{

output.print(msg);

}

}