Android Open Source - ROBO-PUSET Bluetooth Devices

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.mi5t4n.remotecontrol;
/*  w  w  w. ja v  a  2s .  c om*/
import java.util.Set;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class BluetoothDevices extends Activity implements OnItemClickListener {
  // Intent request codes
  private static final int RESULT_OK = 401;
  private static final int REQUEST_ENABLE_BT =403;

  // Bluetooth variables and adapters
  private ArrayAdapter<String> pairedDevicesArrayAdapter;
  private BluetoothAdapter btAdapter;
  private ListView lvPairedDevices;
  private Set<BluetoothDevice> pairedDevices;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.bluetooth_devices);

    // Initializing the layout
    init();
    
    btAdapter=null;
    btAdapter = BluetoothAdapter.getDefaultAdapter();
    //Making sure the device has bluetooth
    if (btAdapter == null) {
      Toast.makeText(getApplicationContext(), "No Bluetooth Detected",
          Toast.LENGTH_LONG).show();
    } else {
      //Turning on the bluetooth
      if(!btAdapter.isEnabled()) turnBTOn();
    }
  }

  @Override
  protected void onDestroy() {
    super.onPause();
    // Make sure we're not doing discovery anymore
    if (btAdapter != null) {
      btAdapter.cancelDiscovery();
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    return super.onOptionsItemSelected(item);
  }

  private void turnBTOn() {
    if (!btAdapter.isEnabled()) {
      Intent i = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
      startActivityForResult(i, REQUEST_ENABLE_BT);
    }
    //Getting a set of paired devices present in the system.
    pairedDevices = btAdapter.getBondedDevices();
    //Filling the listview with name and mac address of the paired devices
    if (pairedDevices.size() > 0) {
      for (BluetoothDevice device : pairedDevices) {
        pairedDevicesArrayAdapter.add(device.getName() + "\n"
            + device.getAddress());
      }
      pairedDevicesArrayAdapter.notifyDataSetInvalidated();
    }

  }

  private void init() {
    // Setting ListView for paired devices
    lvPairedDevices = (ListView) findViewById(R.id.lvPairedDevices);
    lvPairedDevices.setOnItemClickListener(this);
    pairedDevicesArrayAdapter = new ArrayAdapter<String>(this,
        android.R.layout.simple_list_item_1, 0);
    lvPairedDevices.setAdapter(pairedDevicesArrayAdapter);

    // Setting LIstView for available devices
    lvPairedDevices = (ListView) findViewById(R.id.lvPairedDevices);
    lvPairedDevices.setOnItemClickListener(this);
    pairedDevicesArrayAdapter = new ArrayAdapter<String>(this,
        android.R.layout.simple_list_item_1, 1);
    lvPairedDevices.setAdapter(pairedDevicesArrayAdapter);

  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    super.onActivityResult(requestCode, resultCode, data);
    switch (requestCode) {
    case REQUEST_ENABLE_BT:
      if (resultCode == RESULT_CANCELED) {
        finish();
        break;
      }
    }
  }

  @Override
  public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
    //Getting the bluetoothe devicce the user clicked in the listview
    BluetoothDevice tmp = (BluetoothDevice) pairedDevices.toArray()[arg2];
    //Returning the data to the MainAcitivity Class
    Intent intent = new Intent();
    intent.putExtra("device_name", tmp.getName());
    intent.putExtra("device_address", tmp.getAddress());
    setResult(RESULT_OK, intent);
    finish();

  }

}

Java Source Code List

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