[Android] TabLayout과 ViewPager 연결하기

1. FragmentStatePagerAdapter에 getPageTitle() 추가

class FragmentPagerAdapater (fm: FragmentManager) : FragmentStatePagerAdapter(fm) {
    var mTabTitles = mutableListOf()
    ...
    override fun getPageTitle(pos: Int): CharSequence? {
        return if(mTabTitles.isEmpty()) super.getPageTitle(pos) else mTabTitles[pos]
    }
}

2. adapter의 mTabTitles 셋팅

val mAdapter = FragmentPagerAdapater((context as FragmentActivity).supportFragmentManager).apply {
	this.mTabTitles = mutableListOf("tab1", "tab2", "tab3"))
}
mAdapter.addFragment(Fragment())
...
mBinding,viewPager.adapter = mAdapter

3. viewPager과 tabLayout연결

mBinding.tabLayout.setupWithViewPager(mBinding.viewPager)