Android Open Source - AndroidBluetoothNotifier-AndroidApplication Notification Receiver

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From Project

Back to project page AndroidBluetoothNotifier-AndroidApplication.

License

The source code is released under:

GNU General Public License

Java Source Code

package it.devcando;
//w w  w  .ja va2 s. c  o  m
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.UUID;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;

public class NotificationReceiver extends BroadcastReceiver {

  private final String TAG = this.getClass().getSimpleName();
  // Well known SPP UUID
  private static final UUID SPP_UUID = UUID
      .fromString("00001101-0000-1000-8000-00805F9B34FB");
  // Insert your server's MAC address
  private static String address = "08:3E:8E:9F:DE:74";

  BluetoothSocket btSocket = null;
  BluetoothDevice btDevice = null;
  OutputStream btOutputStream = null;
  InputStream btInputStream = null;

  @Override
  public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();

    if (intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, -1) == BluetoothAdapter.STATE_OFF){
      Log.d(TAG,"Stopping Notification Listener service");
      //FIXME doesn't work!
      //Only system can start/stop a notification listener service! WTF!
      //context.stopService(new Intent(context, AndroidBluetoothNotificationService.class));
    }
    if (intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, -1) == BluetoothAdapter.STATE_ON){
      Log.d(TAG,"Starting Notification Listener  service");
      //FIXME doesn't work!
      //Only system can start/stop a notification listener service! WTF!
      //context.startService(new Intent(context, AndroidBluetoothNotificationService.class));
    }
    if(action.equals("android.bluetooth.device.action.ACL_CONNECTED")) {
      //FIXME doesn't work with PC!! I never get this event
      Toast t = Toast.makeText(context, "Device Bluetooth Connected", Toast.LENGTH_SHORT);
      t.show();
      Log.d(TAG,"Device Bluetooth Connected");
      //TODO
    }
    if(action.equals("android.bluetooth.device.action.ACL_DISCONNECTED") ||action.equals("android.bluetooth.device.action.ACL_DISCONNECT_REQUESTED")){
      //FIXME doesn't work with PC!! I never get this event
      Toast t = Toast.makeText(context, "Device Bluetooth Disconnected", Toast.LENGTH_SHORT);
      t.show();
      Log.d(TAG,"Device Bluetooth Disconnected");
      //TODO
    }
    if(action.equals("com.devcando.NOTIFICATION_LISTENER")) {
      String text = intent.getStringExtra("notification_text");
      Log.d(TAG, "Received  notification.");
      byte[] icon = intent.getByteArrayExtra("icon");
      SendMessage(text, icon);
    }

  }

  private void closeConnection() {
    if (btOutputStream != null) {
      try {
        btOutputStream.close();
      } catch (Exception e) {
      }
      btOutputStream = null;
    }

    if (btSocket != null) {
      try {
        btSocket.close();
      } catch (Exception e) {
      }
      btSocket = null;
    }
  }

  private void SendMessage(String message, byte[] icon) {
    if (message.length() == 0)
      return;
    
    BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter();
    btDevice = btAdapter.getRemoteDevice(address);
    // Two things are needed to make a connection:
    // A MAC address, which we got above.
    // A Service ID or UUID. In this case we are using the
    // UUID for SPP.
    try {
      btSocket = btDevice.createRfcommSocketToServiceRecord(SPP_UUID);
    } catch (IOException e) {
      Log.e("Fatal Error", "SendMessage: socket create failed. \n"
          + e.getMessage() + ".");
      return;
    }

    // Discovery is resource intensive. Make sure it isn't going on
    // when you attempt to connect and pass your message.
    btAdapter.cancelDiscovery();
    // Establish the connection. This will block until it connects.
    try {
      btSocket.connect();
    } catch (IOException e) {
      Log.e("Fatal Error",
          "SendMessage: unable to connect to socket. \n"
              + e.getMessage() + ".");
      return;
    }

    try {
      btOutputStream = btSocket.getOutputStream();
      btInputStream = btSocket.getInputStream();
    } catch (IOException e) {
      Log.e(
          "Fatal Error",
          "SendMessage: output stream creation failed. \n"
              + e.getMessage() + ".");
      return;
    }

    message += "\r\ncom.devcando.stop\r\n"; //Finish message, send stop command.
    byte[] msgBuffer = message.getBytes();
    try {
      //Write notification text
      btOutputStream.write(msgBuffer);
      //This read is just for synchronization...
      btInputStream.read();
      //Write icon
      if(icon != null)
        btOutputStream.write(icon);
    } catch (IOException e) {
      String msg = "SendMessage: and an exception occurred during write: "
          + e.getMessage();
      Log.e("Fatal Error", msg);
      return;
    }

    closeConnection();
  }
}

Java Source Code List

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