How do I change the text style of a selected tab when using tabLayout?

Question

I want to make the text of a selected tab bold. How can I do this either through xml or java code, whatever is easier.

Answer 1

If you use default TabLayout (not customView), you can get TextView of tab by using getChildAt() method.

.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            LinearLayout tabLayout = (LinearLayout)((ViewGroup) mMainTabs.getChildAt(0)).getChildAt(tab.getPosition());
            TextView tabTextView = (TextView) tabLayout.getChildAt(1);
            tabTextView.setTypeface(tabTextView.getTypeface(), Typeface.BOLD);
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {
            LinearLayout tabLayout = (LinearLayout)((ViewGroup) mMainTabs.getChildAt(0)).getChildAt(tab.getPosition());
            TextView tabTextView = (TextView) tabLayout.getChildAt(1);
            tabTextView.setTypeface(tabTextView.getTypeface(), Typeface.NORMAL);
        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) { }
    });