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

In my case, setTypeface doesn't work right after tab init so I need to use post method to wait TextView laid out then setTypeface

tabLayout.addOnTabSelectedListener(object : TabLayout.OnTabSelectedListener {
    override fun onTabReselected(tab: TabLayout.Tab?) {
    }

    override fun onTabUnselected(tab: TabLayout.Tab?) {
        tab?.let {
            setStyleForTab(it, Typeface.NORMAL)
        }
    }

    override fun onTabSelected(tab: TabLayout.Tab?) {
        tab?.let {
            setStyleForTab(it, Typeface.BOLD)
        }
    }

    fun setStyleForTab(tab: TabLayout.Tab, style: Int) {
        tab.view.children.find { it is TextView }?.let { tv ->
            (tv as TextView).post {
                tv.setTypeface(null, style)
            }
        }
    }
})