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| package com.example.nadia.helloword;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
// pour socket besoin d'importer le bibilothéque
import android.os.AsyncTask;
import android.widget.TextView;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
public class MainActivity extends AppCompatActivity {
// Tag for logging
private final String TAG = getClass().getSimpleName();
// AsyncTask object that manages the connection in a separate thread
WiFiSocketTask wifiTask = null;
// nos boutton
EditText textStatus, editTextAddress, editTextPort;
Button buttonConnect, buttonDisconnect
buttonON,buttonOFF;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// référence pour les élements
textStatus = (TextView) findViewById(R.id.textStatus);
editTextAddress = (EditText) findViewById(R.id.address);
editTextPort = (EditText) findViewById(R.id.port);
buttonON = (Button) findViewById(R.id.ON);
buttonOFF = (Button) findViewById(R.id.OFF);
buttonConnect = (Button) findViewById(R.id.connect);
/** tentative de connection */
public void connectButtonPressed(View v) {
if (wifiTask != null) {
setStatus("Already connected!");
return;}
try {
// Get the remote host from the UI and start the thread
String host = editTextAddress.getText().toString();
int port = Integer.parseInt(editTextPort.getText().toString());
// Start the asyncronous task thread
setStatus("Attempting to connect...");
wifiTask = new WiFiSocketTask(host, port);
wifiTask.execute();
}
catch (Exception e) {
e.printStackTrace();
setStatus("Invalid address/port!");}
}
/**disconnecter*/
public void disconnectButtonPressed(View v) {
if (wifiTask == null) {
setStatus("Already disconnected!");
return;}
wifiTask.disconnect();
setStatus("Disconnecting..."); }
/**
* Invoked by the AsyncTask when the connection is successfully established.
*/
private void connected() {
setStatus("Connected.");
// buttonSend.setEnabled(true);
}
/**
* Invoked by the AsyncTask when the connection ends..
*/
private void disconnected() {
setStatus("Disconnected.");
//buttonSend.setEnabled(false);
wifiTask = null;
}
private void turnOffLed()
{
if ( wifiTask!=null)
{
try
{
wifiTask.getOutputStream().write("TF".toString().getBytes());
}
catch (IOException e)
{
msg("Error");
}
}
}
private void turnOnLed()
{
if ( wifiTask!=null)
{
try
{
wifiTask.getOutputStream().write("TO".toString().getBytes());
}
catch (IOException e)
{
msg("Error");
}
}
}
public class WiFiSocketTask extends AsyncTask<Void, String, Void> {
String address;
int port;
// Special messages denoting connection status
private static final String PING_MSG = "SOCKET_PING";
private static final String CONNECTED_MSG = "SOCKET_CONNECTED";
private static final String DISCONNECTED_MSG = "SOCKET_DISCONNECTED";
Socket socket = null;
BufferedReader inStream = null;
OutputStream outStream = null;
// Signal to disconnect from the socket
private boolean disconnectSignal = false;
// Socket timeout - close if no messages received (ms)
private int timeout = 5000;
// constructeur
WiFiSocketTask(String address, int port) {
this.address = address;
this.port = port;
}
/**
* Main method of AsyncTask, opens a socket and continuously reads from it
*/
@Override
protected Void doInBackground(Void... arg) {
try {
// ouvrir une socket et se connecter
socket = new Socket();
socket.connect(new InetSocketAddress(address, port), timeout);
// Get the input and output streams
inStream = new BufferedReader(new InputStreamReader(socket.getInputStream()));
outStream = socket.getOutputStream();
// confirmation de la connexion de socket
if(socket.isConnected()) {
// tester si l'input stream est prete
long start = System.currentTimeMillis();
while(!inStream.ready()) {
long now = System.currentTimeMillis();
if(now - start > timeout) {
Log.e(TAG, "Input stream timeout, disconnecting!");
disconnectSignal = true;
break;
}
}
} else {
Log.e(TAG, "Socket did not connect!");
disconnectSignal = true;
}
// Read messages in a loop until disconnected
while(!disconnectSignal) {
// Parse a message with a newline character
String msg = inStream.readLine();
// Send it to the UI thread
publishProgress(msg);
}
} catch (Exception e) {
e.printStackTrace();
Log.e(TAG, "Error in socket thread!");
}
publishProgress(DISCONNECTED_MSG);
// fermture de la socket, instrem et outstrem
try {
if (socket != null) socket.close();
if (inStream != null) inStream.close();
if (outStream != null) outStream.close();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
} |
commander des lampes a distance via application smartphone sous android studio
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