Android Open Source - Android-Desktop-Remote-Control App Delegate

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License

The source code is released under:

GNU General Public License

Java Source Code

//   Copyright 2010 Justin Taylor
//   This software can be distributed under the terms of the
//   GNU General Public License. 
//from w w w .  ja va2  s .com
package org.example.touch;

import android.app.Application;
import android.util.Log;
import java.net.*;

public class AppDelegate extends Application {
  
  private ClientThread client;
  public int mouse_sensitivity = 1;
  public boolean connected = false;
  public boolean network_reachable = true;
  
  public void onCreate(){
    super.onCreate();
  }
  
  public void createClientThread(String ipAddress, int port){
    client = new ClientThread(ipAddress, port);
    
    Thread cThread = new Thread(client);
      cThread.start();
  }
  
  public void sendMessage(String message){
    client.sendMessage(message);
  }
  
  public void stopServer(){
    if(connected){
      client.closeSocket();
    }
  }
  
  // ClientThread Class implementation
     public class ClientThread implements Runnable {
      
      private InetAddress serverAddr;
      private int serverPort;
      private DatagramSocket socket;
      byte[] buf = new byte[1000];
      
      public ClientThread(String ip, int port){
        try{
          serverAddr = InetAddress.getByName(ip);
        }
        catch (Exception e){
          Log.e("ClientActivity", "C: Error", e);
        }
        serverPort = port;
      }
        
      //Opens the socket and output buffer to the remote server
        public void run() {
            try {
                socket = new DatagramSocket();
                socket.setSoTimeout(1000);
                connected = testConnection();
                if(connected)
                  surveyConnection();
            }
            catch (Exception e) {
                Log.e("ClientActivity", "Client Connection Error", e);
            }
        }
        
        public void sendMessage(String message){
        try {
                buf = message.getBytes();
                DatagramPacket out = new DatagramPacket(buf, buf.length, serverAddr, serverPort);
                socket.send(out);
                Log.d("ClientActivity", "Sent." + message);
                network_reachable = true;
            }
        catch (Exception e){ 
          Log.e("ClientActivity", "Client Send Error:");
          if(e.getMessage().equals("Network unreachable")){
            Log.e("ClientActivity", "Netork UNREACHABLE!!!!:");
            network_reachable = false;
          }
          closeSocketNoMessge();
        }
        }
        
        public void closeSocketNoMessge(){
          socket.close();
          connected = false;
        }
        
        public void closeSocket(){
          sendMessage(new String("Close"));
          socket.close();
          connected = false;
        }
        
        private boolean testConnection(){
            try {
               Log.d("Testing", "Sending");
               
               if(!connected)buf = new String("Connectivity").getBytes();
               else buf = new String("Connected").getBytes();
               
                 DatagramPacket out = new DatagramPacket(buf, buf.length, serverAddr, serverPort);
                 socket.send(out);
                 Log.d("Testing", "Sent");
              }
            catch(Exception e){return false;}
            
            try{
              Log.d("Testing", "Receiving");
              DatagramPacket in = new DatagramPacket(buf, buf.length);
              socket.receive(in);
              Log.d("Testing", "Received");
              return true;
            }
            catch(Exception e){return false;}
        }
        
        private void surveyConnection(){
          int count = 0;
          while(connected){
            try{Thread.sleep(1000);}
            catch(Exception e){}
            
            if(!testConnection())
              count++;
            else
              count = 0;
            
            if(count == 3){
              closeSocket();
              return;
            }
          }
        }
         
    }
}

Java Source Code List

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