public void prepareData() {

    this.setHasOptionsMenu(true);
    mImageLoader = ImageLoader.getInstance(getActivity());
    mImageLoader.setDefaultBitmap(R.drawable.ic_head_default);
    mServiceHelper = CampusPoServiceHelper.getInstance(getActivity());
  }
  private void populateUi() {

    if (mUser != null) {

      if (BuildConfig.DEBUG) Log.d(TAG, "populating...");
      mTextViewScreenName.setText(mUser.getUserScreenName());
      mTextViewUserDescription.setText(mUser.getUserDescription());

      String profileIconUrl = mUser.getProfileIconUrl();
      if (null != profileIconUrl && !"".equals(profileIconUrl))
        mImageLoader.loadImage(profileIconUrl, mImageViewProfileIcon);
    }
  }