title: AltBeacon - Search for beacons after restarting bluetooth in device
body: <p>I have an android app where I'm detecting beacons in foreground/background. Everything works fine excepting when I switch off the bluetooth on the device. In this case OnExitRegion it's called but I've to ignore it because I really don't know what the user is doing, but if then I move far of the beacon and switch on the bluetooth again, onExitRegion will not be called again and I won't know that I exited the region.</p>
  
  <p>This is part of my code.</p>
  
  <pre><code>public class MyApplication extends Application implements BootstrapNotifier {
  public void onCreate() {
      super.onCreate();
      ...
      mBeaconManager = BeaconManager.getInstanceForApplication(this);
      mBeaconManager.getBeaconParsers().add(new BeaconParser().
              setBeaconLayout(Constants.BEACON_LAYOUT));
      mBeaconRegion = new Region(Constants.BEACON_BACKGROUND_REGION, Identifier.parse(Constants.BEACON_UDID), null, null);
      regionBootstrap = new RegionBootstrap(this, mBeaconRegion);
      backgroundPowerSaver = new BackgroundPowerSaver(this);
      mBeaconManager.setBackgroundScanPeriod(Constants.BEACON_BACKGROUND_SCAN_PERIOD);       
      mBeaconManager.setBackgroundBetweenScanPeriod(Constants.BEACON_BACKGROUND_BETWEEN_SCAN_PERIOD);
      mBeaconManager.setAndroidLScanningDisabled(true);
      ...
  </code></pre>
  
  <p>}</p>
  
  <p>I've tried to create a BroadcastReceiver for detecting when the bluetooth is off or on</p>
  
  <pre><code>public class BluetoothBroadcastReceiver extends BroadcastReceiver {
  
  public void onReceive(Context context, Intent intent) {
      String action = intent.getAction();
  
      if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(action)) {
          if (intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, -1)
                  == BluetoothAdapter.STATE_OFF) {
              Log.w("BLUETOOTH", "Bluetooth is disconnected");
          } else {
              Log.w("BLUETOOTH", "Bluetooth is connected");
          }
      }
  }
  }
  </code></pre>
  
  <p>What I'd need is to check in this broadcastreceiver, when the bluetooth is on, if I'm still in the region or not to modify the UI.</p>
  
  <p>Hope my explanation is clear enough.</p>
  
  <p>Many thanks in advance!</p>