public Map<String, ?> getMoreExtras() {
        return moreExtras;
    }
@param fragment {@link Fragment} invoking the integration.
                {@link #startActivityForResult(Intent, int)} will be called on the {@link Fragment} instead
                of an {@link Activity}
zxing-android-embedded/src/com/google/zxing/integration/android/IntentIntegrator.java