Android Open Source - airprobe Bluetooth Broadcast Receiver

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * AirProbe//ww w .  ja v a2s.c  o  m
 * Air quality application for Android, developed as part of 
 * EveryAware project (<http://www.everyaware.eu>).
 *
 * Copyright (C) 2014 CSP Innovazione nelle ICT. All rights reserved.
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * For any inquiry please write to <devel@csp.it>
 * 
 * CONTRIBUTORS
 * 
 * This program was made with the contribution of:
 *   Fabio Saracino <fabio.saracino@csp.it>
 *   Patrick Facco <patrick.facco@csp.it>
 * 
 * 
 * SOURCE CODE
 * 
 *  The source code of this program is available at
 *  <https://github.com/CSPICT/airprobe>
 */

package org.csp.everyaware.bluetooth;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import org.csp.everyaware.Constants;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

//registrato per due eventi: ACTION_STATE_CHANGED e ACTION_FOUND
public class BluetoothBroadcastReceiver extends BroadcastReceiver
{
  private Context mContext;
  private Handler mHandler;
  
  public BluetoothBroadcastReceiver(Context ctx, Handler handler)
  {
    mContext = ctx;
    mHandler = handler;
  }
  
  //sulla scoperta di un nuovo device ad opera di startDiscovery()
  public void onReceive(Context context, Intent intent)
  {
    //recuper il codice dell'intent
    String action = intent.getAction();
    
    Log.d("BBR", "action: " +action);
    
    if(BluetoothAdapter.ACTION_STATE_CHANGED.equals(action))
    {
      //il secondo campo specificato per getIntExtra ? solo il valore da restituire in caso di errore
      int newState = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.STATE_OFF);
            
      if (newState == BluetoothAdapter.STATE_TURNING_ON) 
              Log.d("BBR", "onReceive()--> BluetoothAdapter STATE TURNING ON");
      
            if (newState == BluetoothAdapter.STATE_ON) 
            {             
              Log.d("BBR", "onReceive()--> BluetoothAdapter STATE ON");
              
              //chiudo la progress dialog 
          Message msg = mHandler.obtainMessage(Constants.BT_ACTIVATED);
          mHandler.sendMessage(msg);          
            }
    }  
    
    //se ? tale codice ? ACTION_FOUND, recupero informazioni dall'intent
    if(BluetoothDevice.ACTION_FOUND.equals(action))
    {
      Log.d("BBR", "onReceive()--> BluetoothAdapter ACTION FOUND");
      
      //il campo EXTRA_DEVICE contiene un'istanza di BluetoothDevice; essa 
      //? l'istanza del device appena trovato
      BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
      
      if(device == null)
        return;
      
      if(device.getName() != null)
      {        
        Log.d("BBR", "onReceive()--> device name: " +device.getName());
        
        if(device.getName().length() >= 9)
        {
          //se il nome del device inizia con "SensorBox" lo aggiungo all'array di
          //device compatibili con l'app
          if(Constants.ROOT_DEVICE_NAME.equals(device.getName().substring(0, 9)))
          {
            //invio il device alla Start tramite handler
            Message msg = mHandler.obtainMessage(Constants.DEVICE_DISCOVERED);
            Bundle bundle = new Bundle();
            
            bundle.putSerializable(Constants.DEVICE, 
                (Serializable) new BluetoothObject(device));
            
            msg.setData(bundle);
            mHandler.sendMessage(msg);
            
            Log.d("BBR", "onReceive()--> aggiunto device con nome: " +device.getName());
          }
        }
      }
      else
        Log.d("BBR", "device name null");
    }
    if(BluetoothDevice.ACTION_ACL_CONNECTED.equals(action))
    {
      Log.d("BBR", "action acl connected");
    }
    if(BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action))
    {
      Log.d("BBR", "action acl disconnected");
    }
    if(BluetoothDevice.ACTION_ACL_DISCONNECT_REQUESTED.equals(action))
    {
      Log.d("BBR", "action acl disconnected requested");
    }
    if(BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action))
    {
      Log.d("BBR", "Action discovery started");
      
      Message msg = mHandler.obtainMessage(Constants.DISCOVERY_STARTED);
      mHandler.sendMessage(msg);
    }
    if(BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action))
    {
      Log.d("BBR", "Action discovery finished");
      
      Message msg = mHandler.obtainMessage(Constants.DISCOVERY_FINISHED);      
      mHandler.sendMessage(msg);
    }
  }
};

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