[Kotlin]Fragment上にListViewを表示させたい。

Question

Android開発でBottomNavigationとFragmentにより画面遷移を実装しました。
Fragmentで作成した画面にListViewを表示させたいのですが、要素が1つしか表示されず、困っています。
ListViewの要素を複数表示させるためにはどのようにしたら良いですか？
![
[説明]画像ではappleとしか表示されいませんが、ここにlemonも表示させるようにしたいです。
以下がそれぞれ、MainActivity.kt、activity_main.xml、Notification.kt、fragment_notification.xmlのコードになります。
ご回答よろしくお願いします。

package com.example.pxc

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import com.google.android.material.bottomnavigation.BottomNavigationView

class MainActivity : AppCompatActivity() {

    private val onNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
        when (item.itemId) {
            R.id.home -> {
                val transaction = supportFragmentManager.beginTransaction()
                transaction.addToBackStack(null)
                transaction.replace(R.id.container, Home.createInstance("abc"))
                transaction.commit()
                return@OnNavigationItemSelectedListener true
            }
            R.id.notification -> {
                val transaction = supportFragmentManager.beginTransaction()
                transaction.addToBackStack(null)
                transaction.replace(R.id.container, Notification.createInstance("abc"))
                transaction.commit()
                return@OnNavigationItemSelectedListener true
            }
            R.id.favorite -> {
                val transaction = supportFragmentManager.beginTransaction()
                transaction.addToBackStack(null)
                transaction.replace(R.id.container, Favorite.createInstance("abc"))
                transaction.commit()
                return@OnNavigationItemSelectedListener true
            }
            R.id.my_page -> {
                val transaction = supportFragmentManager.beginTransaction()
                transaction.addToBackStack(null)
                transaction.replace(R.id.container, MyPage.createInstance("abc"))
                transaction.commit()
                return@OnNavigationItemSelectedListener true
            }
        }
        false
    }

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

        val navView: BottomNavigationView = findViewById(R.id.nav_view)
        navView.setOnNavigationItemSelectedListener(onNavigationItemSelectedListener)
    }
}

<?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:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintTop_toTopOf="parent" />

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/nav_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?android:attr/windowBackground"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:menu="@menu/item_bottom_navigation" />

</androidx.constraintlayout.widget.ConstraintLayout>

package com.example.pxc

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.ListAdapter
import android.widget.ListView
import android.widget.TextView

class Notification : Fragment() {
    var context = ""
    companion object{
        fun createInstance(c: String) : Notification{
            val detail = Notification()
            detail.context = c
            return detail
        }
    }

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

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        val list = ArrayList<String>()
        list.add("apple")
        list.add("lemon")

        val adapter = ArrayAdapter(this.requireContext(), android.R.layout.simple_list_item_1, list)
        val listView = view.findViewById<TextView>(R.id.listView) as ListView
        listView.adapter = adapter
    }
}

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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=".Notification">

    <ScrollView
        android:id="@+id/scrollView"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ListView
            android:id="@+id/listView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />
    </ScrollView>
</FrameLayout>

Answer 1

自己解決しました。
ScrollViewの子にListViewを入れるとScrollViewのheightのサイズがListView一個分のheightになるようでしたが、以下の関数を実装するとできるようになりました。

private fun setListViewHeightBasedOnChildren(list: ListView){
    val adapter = listView.adapter

    var totalHeight = 0
    var desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.width, View.MeasureSpec.AT_MOST)

    for (item in 0 until adapter.count){
        val listItem = adapter.getView(item, null, list)
        listItem.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED)
        totalHeight += listItem.measuredHeight
    }

    val params = listView.layoutParams
    params.height = totalHeight + (listView.dividerHeight * (adapter.count - 1))
    listView.layoutParams = params
    listView.requestLayout()
}