CODEWITHSUNDEEP
androidkotlinandroid-fragmentsandroid-viewpager2
Ahmet Yilmaz
Ahmet Yilmaz

Reputation: 145

Create fragment in viewpager adapter when tab selected

There are two fragments inside viewPager. When the main fragment load the location permission code on the second fragment that work. Want that fragmen work when click the second tab. So I think I need to create this fragment when selected second tab. How can detect and do this?

OurHospitalFragment.kt

  viewPager2OurHospital.adapter = adapter
            viewPager2OurHospital.offscreenPageLimit = 1
            TabLayoutMediator(tabLayoutOurHospital, viewPager2OurHospital) { tab, position ->
                when (position) {
                    0 -> tab.text = getString(R.string.list)
                    1 -> tab.text = getString(R.string.map)
                }
            }.attach()

            tabLayoutOurHospital.addOnTabSelectedListener(object : TabLayout.OnTabSelectedListener {
                override fun onTabSelected(tab: TabLayout.Tab?) {
                    tab?.let {
                        viewPager2OurHospital.isUserInputEnabled = tab.position != 1
                    }
                }

                override fun onTabUnselected(tab: TabLayout.Tab?) {
                }

                override fun onTabReselected(tab: TabLayout.Tab?) {
                }
            })

OurHospitalASMViewPagerAdapter.kt

class OurHospitalViewPagerAdapter(fragmentManager: FragmentManager, lifecycle: Lifecycle) :
    FragmentStateAdapter(fragmentManager, lifecycle) {

    override fun getItemCount(): Int {
        return 2
    }

    override fun createFragment(position: Int): Fragment {
        return when (position) {
            0 -> HospitalListFragment()
            1 -> HospitalMapFragment()
            else -> Fragment()
        }
    }
}

Upvotes: 1

Views: 628

Answers (1)

Ahmet Yilmaz
Ahmet Yilmaz

Reputation: 145

I wrote this code line:

viewPager2OurHospital.offscreenPageLimit = ViewPager2.OFFSCREEN_PAGE_LIMIT_DEFAULT

instead of this:

viewPager2OurHospital.offscreenPageLimit = 1

and I get it what I want.

Upvotes: 1

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