kotlin listview example

kotlin listview example

 In this Tutorial Today learn kotlin listview android follow the full Source code kotlin listview example

What is a ListView in android?

Advertisements. Android ListView is a view which groups several items and display them in vertical scrollable list. The list items are automatically inserted to the list using an Adapter that pulls content from a source such as an array or database

ArrayAdapter

You can use this adapter when your data source is an array. By default, ArrayAdapter creates a view for each array item by calling toString() on each item and placing the contents in a TextView. Consider you have an array of strings you want to display in a ListView, initialize a new ArrayAdapter using a constructor to specify the layout for each string and the string array

1.MainActivity.kt:

package com.akash.kotlinlistview

import androidx.appcompat.app.AppCompatActivity

import android.os.Bundle

import android.widget.ArrayAdapter

import android.widget.ListView

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)

        setContentView(R.layout.activity_main)

        // use arrayadapter and define an array

        val arrayAdapter: ArrayAdapter<*>

        val users = arrayOf(

                "Virat Kohli", "Rohit Sharma", "Steve Smith",

                "Kane Williamson", "Ross Taylor"

        )

        // access the listView from xml file

        var mListView = findViewById<ListView>(R.id.userlist)

        arrayAdapter = ArrayAdapter(this,

                android.R.layout.simple_list_item_1, users)

        mListView.adapter = arrayAdapter

    }

}

2.activity_main.xml:

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

<LinearLayout 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"

    android:orientation="vertical">

    <ListView

        android:id="@+id/userlist"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

    </ListView>

</LinearLayout>

3.AndroidManifest.xml:

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

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

    package="com.akash.kotlinlistview">

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

4.strings.xml:

<resources>

    <string name="app_name">kotlin listview</string>

</resources>

5.colors.xml:

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

<resources>

    <color name="colorPrimary">#6200EE</color>

    <color name="colorPrimaryDark">#3700B3</color>

    <color name="colorAccent">#03DAC5</color>

</resources>

6.styles.xml:

<resources>

    <!-- Base application theme. -->

    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">

        <!-- Customize your theme here. -->

        <item name="colorPrimary">@color/colorPrimary</item>

        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>

        <item name="colorAccent">@color/colorAccent</item>

    </style>

</resources>

7.Output:

follow the full Source code kotlin listview  example.