This is for cuztomizing tab indicator

Tab.java

        //Customizing Tab indicator
        PagerTabStrip pagerTabStrip = (PagerTabStrip) findViewById(R.id.pager_header);
        pagerTabStrip.setDrawFullUnderline(true);
        pagerTabStrip.setTabIndicatorColor(getResources().getColor(R.color.icons));
        for (int i = 0; i < pagerTabStrip.getChildCount(); ++i) {
            View nextChild = pagerTabStrip.getChildAt(i);
            if (nextChild instanceof TextView) {
                TextView tv = (TextView) nextChild;
                tv.setTextColor(getResources().getColor(R.color.icons));
                tv.setTextSize(20);
                tv.setAllCaps(true);
                tv.setPadding(0,0,0,10);
            }
        }