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I have been working on a video where were people can watch videos like tik tok. At first I made it with recyclerview and later on I realized that I should use Vertical Viewpager. At first I used Viewpager2 but I faced some problems so I replaced it with viewpager1. But still it is not working. I am doing this in my fragment. I want to play videos from firebase in Vertical viewpager using videoview. In Viewpager_Adapter u can see that I have called one more layout there which is viewer_page but when I run my app I don't get that layout in my fragment

 class ViewpagerAdapter(var context: Context) : PagerAdapter() {
    lateinit var inflater: LayoutInflater
    var contentDTOs: ArrayList<ContentDTOs> = arrayListOf()

    var contentUidList: ArrayList<String> = arrayListOf()

    override fun isViewFromObject(view: View, `object`: Any): Boolean {
        return view == `object` as ConstraintLayout

    override fun destroyItem(container: ViewGroup, position: Int, `object`: Any) {
        container.removeView(`object`as ConstraintLayout)

    override fun instantiateItem(container: ViewGroup, position: Int): Any {
        inflater = context.getSystemService(container.context.toString())as LayoutInflater
        val view =inflater.inflate(R.layout.viewer_page,container,false)
        val exo : View? = view?.findViewById(

        val path = Uri.parse(contentDTOs[position].videourl)
        val views = view.findViewById<VideoView>(
        views.setOnPreparedListener {
        return view

    override fun getCount(): Int {
        return contentDTOs.size


    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        // Inflate the layout for this fragment
        val fragmentview = inflater.inflate(R.layout.fragment_watch_video, container, false)
        fragmentview.videofragment?.setOnClickListener {
            var fragment = Watch_video()
            activity?.supportFragmentManager?.beginTransaction()?.replace(, fragment)

        fragmentview.memefragment?.setOnClickListener {
            var fragment = DetailViewFragment()
            activity?.supportFragmentManager?.beginTransaction()?.replace(, fragment)


        firestore = FirebaseFirestore.getInstance()
        uid = FirebaseAuth.getInstance().currentUser?.uid

        fragmentview.videofragment?.setOnClickListener {
            var fragment = Watch_video()
            activity?.supportFragmentManager?.beginTransaction()?.replace(, fragment)


        fragmentview.vertical_viewpager.adapter = ViewpagerAdapter(requireContext())
        ) { page, position ->
            page.rotationY = position * -30 // animation style... change as you want..

Can u guys plz help me

What I have tried:

I have tried to play videos from firebase to videoview using vertical viewpager
Updated 5-Nov-20 16:24pm
Richard Deeming 5-Nov-20 10:16am
"Is not working" is not a sufficient description of the problem for anyone to help you.

Click the green "Improve question" link and update your question to include a complete description of the problem. Include the full details of any errors.
Member 14883729 5-Nov-20 22:23pm
Ok done. U can check if u need anymore information.
wseng 7-Nov-20 11:18am
Did you add viewpager in fragment_watch_video.xml?
Member 14883729 10-Nov-20 5:18am
wseng 11-Nov-20 4:54am
can you show us how your xml look like?

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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