// Here we add the custom TextView for each tab.
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
    final TextView t = new TextView(this);
    t.setText(mSectionsPagerAdapter.getPageTitle(i));
    t.setTypeface(FONT_AWESOME);
    t.setTextColor(lightBlue);
    t.setTextSize(25);
    t.setPadding(0, 10, 0, 0);
    actionBar.addTab(actionBar.newTab().setCustomView(t).setTabListener(this));
}

// This goes into the FragmentPagerAdapter
@Override
public CharSequence getPageTitle(int position) {
    switch (position) {
        case 0:
            return activity.getResources().getString(R.string.icon_user);
        ...