Jun 28, 2010 · You could organize your data structure to show nested data in one ListView. Or you can use this project PreOrderTreeAdapter . It is convenient to show nested data in ListView or RecyclerView.

Oct 28, 2017 · I'm trying to display an array in a ListView but the final two lines of my MainActivity throwing up an Expecting member declaration message. Any idea why? MainActivity.kt. override fun onCreate(savedInstanceState: Bundle?) super.onCreate(savedInstanceState) setContentView(R.layout.activity_main)

Oct 23, 2018 · If you have nested arrays structure (for instance, val array: Array<Array<out Int?>> = arrayOf(arrayOf(1), arrayOf(2), arrayOf(3, null, 4))), you can just use flatten extension method: println(array.flatten().filterNotNull())

Learn how to effectively use nested arrays in Android ListView with this comprehensive guide. Step-by-step instructions and examples included.

Jan 29, 2025 · In this article, we will learn how to use ListView of Android in Kotlin. Android Adapter. The adapter holds the data fetched from an array and iterates through each item in the data set and generates the respective views for each item of the list.

ListView is one of the views from the view group which shows the data in a vertical scrollable format. It enhances the user experience as it makes the list easily understandable for users. In this article, we are going to create a simple list using an array adapter.

Aug 23, 2023 · Learn how to use ListView in Android with Kotlin through this comprehensive example that covers all essential aspects. Discover how to implement ListView in Android with Kotlin through detailed examples.

Nov 10, 2024 · Implementing ListView with ArrayAdapter in Kotlin. The easiest way to display items in a ListView is to use an ArrayAdapter, which can be used for lists of basic data types, such as strings or integers. In your main Kotlin activity, create an array of items: override fun onCreate(savedInstanceState: Bundle?) super.onCreate(savedInstanceState)

Oct 21, 2020 · 1. Nested arrayOf calls. You can nest calls of arrayOf, e.g., to create an Array of IntArray, do the following: val first: Array<IntArray> = arrayOf( intArrayOf(2, 4, 6), intArrayOf(1, 3, 5) )

Mar 17, 2025 · Android ListView is a view component that contains the list of items and is displayed in a scrollable list. The list items are automatically added to the list using the Adapter class. The Adapter class bridges the list of data between an AdapterViews other Views components (ListView, ScrollView, etc.).