AnyFragmentPagerAdapter.kt

import androidx.fragment.app.Fragment
import androidx.fragment.app.FragmentManager
import androidx.fragment.app.FragmentPagerAdapter
import androidx.viewpager.widget.ViewPager
import com.google.android.material.tabs.TabLayout

open class AnyFragmentPagerAdapter(
    fm: FragmentManager,
    private val mPages: List<AnyPagerableFragment>
) : FragmentPagerAdapter(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) {

    override fun getItem(position: Int): Fragment {
        return mPages[position]
    }

    override fun getCount(): Int {
        return mPages.size
    }

    override fun getPageTitle(position: Int): CharSequence? {
        return mPages[position].title
    }

    fun setup(viewPager: ViewPager, tabLayout: TabLayout) {
        viewPager.adapter = this
        tabLayout.setupWithViewPager(viewPager, true)
    }

    abstract class AnyPagerableFragment : Fragment() {

        abstract val title: String

    }

}