public void onCreate() {
super.onCreate();
this.continueScanning = true;
positioning = new Positioning(this, WALKBASE_API_KEY);
verificationReceiver = new VerificationReceiver();
this.registerReceiver(
verificationReceiver, new IntentFilter(positioning.getPositioningIntentString()));
SharedPreferences preferences = getSharedPreferences("preference", Activity.MODE_PRIVATE);
FACEBOOK_ID = preferences.getString("facebook_id", "");
PECORIN_TOKEN = preferences.getString("pecorin_token", "");
}
public void onDestroy() {
continueScanning = false;
positioning.finish();
this.unregisterReceiver(verificationReceiver);
super.onDestroy();
}