How to implement list view inside fragment android studio Kotlin

Since you said you are new. in many languages that i know, codes after return statements are never run.

Do something like this

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
    return LayoutInflater.from(container?.context).inflate(R.layout.visayas_mindanao, container, false)
}

override fun onViewCreated(){
 val lv = findViewById(R.id.visayas_mindanao_lview) as ListView
    val adapter = ArrayAdapter(this, android.R.layout.simple_list_item_1,listOf("car", "plane"))
    lv.adapter = adapter
}

If you reading from resources, do this

override fun onViewCreated(){
     val lv = findViewById(R.id.visayas_mindanao_lview) as ListView
        val adapter = ArrayAdapter(this, android.R.layout.simple_list_item_1, resources.getStringArray(// the resource ID of the array))
        lv.adapter = adapter
    }

Make sure your resources looks like what @nitinkumarp said.

If this worked for you, check it as the answer. to help other beginners. thanks

I tested and it worked very well. Here is my code:

MainActivity (who has the frameLayout)

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.fragment.app.Fragment

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        setFragment(FirstFragment())
    }

    fun setFragment(f: Fragment) {

        val ft = supportFragmentManager.beginTransaction()

        ft.replace(R.id.framelayout, f)
        ft.commit()
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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"
    tools:context=".MainActivity">

    <FrameLayout
        android:id="@+id/framelayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".FirstFragment">


    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/visayas_mindanao_lview"/>

</androidx.constraintlayout.widget.ConstraintLayout>

fragment.kt

import android.os.Bundle
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ArrayAdapter
import android.widget.ListView

/**
 * A simple [Fragment] subclass.
 */
class FirstFragment : Fragment() {

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_first, container, false)
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        val context = context as MainActivity
        val centerlist = resources.getStringArray(R.array.region1)

        val lv = context.findViewById(R.id.visayas_mindanao_lview) as ListView
        val adapter = ArrayAdapter(context, android.R.layout.simple_list_item_1, centerlist)
        lv.adapter = adapter
    }
}

values: strings.xml

<resources>
    <string-array name="region1">
        <item>item1</item>
        <item>item2</item>
        <item>item3</item>
        <item>item4</item>
        <item>item5</item>
        <item>item6</item>
    </string-array>
</resources>

Your String Array resources is not in correct format. Add it like in following format:

<string-array name="sample_region1">
    <item>ACAYA
Nalasin, Solsona, Ilocos Norte</item>
    <item>ALPHA KEN OMEGA
Imelda Marcos, Ilocos Norte</item>

</string-array>

As the documentation says:

Note: For better performance in your list, you should instead build your list with RecyclerView.

Also, you can find a full example for both implementations in the official documentation. See: ListView documentation, RecyclerView documentation

Edit: +1 for moving your code above the return statement otherwise it won't be executed.