Nsryjdtyk

It's simple, I have a viewpager with some images that is include on the fragment layout. When I run the project, all the layout show up but the viewpager doesn't... just like this:

So, I will put here the code that matters. First things first, the Viewpager:

class ViewPageAdapter(private val context: Context) : PagerAdapter(){

    private var layoutInflater:LayoutInflater?= null



    override fun isViewFromObject(view: View, `object`: Any): Boolean {

        return view === `object`

    }



    override fun getCount(): Int {

        return images.size

    }



    override fun instantiateItem(container: ViewGroup, position: Int): Any {

        /**Set our vals to "inflate"**/

        layoutInflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater

        val v = layoutInflater!!.inflate(R.layout.custom_layout, null)

        val image = v.findViewById<View>(R.id.image_view) as ImageView



        /**Positions of images**/ 

        auxPosition = images[position]



        val vp = container as ViewPager



        /** Add custom_layout.xml to our viewpager**/

        vp.addView(v, 0)



        return v

    }

}

The respective Fragment:

class FeridasFragment : Fragment() {



internal lateinit var viewPager: ViewPager



override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,

                          savedInstanceState: Bundle?): View? {



    val conteudo_feridas=inflater!!.inflate(R.layout.fragment_feridas, container, false)



    //the viewpager

    viewPager = conteudo_feridas.findViewById<View>(R.id.viewPagerGaleria) as ViewPager

    val adapter = ViewPageAdapter(activity!!.application)

    viewPager.adapter = adapter

    viewPager.currentItem = images.size



    //nav dots of viewpager

    val pageIndicatorView = conteudo_feridas.findViewById<View>(R.id.pageIndicatorView) as PageIndicatorView

    pageIndicatorView.setViewPager(viewPagerGaleria)

    pageIndicatorView.count = images.size

    pageIndicatorView.selection = images.size



    return conteudo_feridas

}

The layout of the viewpager:

 <android.support.constraint.ConstraintLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent">



    <android.support.v4.view.ViewPager

        android:id="@+id/viewPagerGaleria"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="8dp"

        app:layout_constraintTop_toBottomOf="@id/pageIndicatorView">

    </android.support.v4.view.ViewPager>



    //Forget about this, is just a indicator

        <com.rd.PageIndicatorView

        android:id="@+id/pageIndicatorView"

        android:layout_width="wrap_content"

        app:layout_constraintBottom_toTopOf="@id/viewPagerGaleria"

        app:layout_constraintRight_toRightOf="parent"

        app:layout_constraintLeft_toLeftOf="parent"

        app:piv_padding="50dp"

        app:piv_animationType="scale"

        app:piv_viewPager="@id/viewPagerGaleria"

        android:layout_height="wrap_content"

        />

     </android.support.constraint.ConstraintLayout>