In the developed app, each user is supposed to have username, phone number, email address, and a self-picture. In the first step, an XML layout should be designed to represent the view template of each item (user). Creating the ListViewĬreating a ListView consists of two separate steps that are mentioned in this subsection. This section consists of some subsections that are presented in the following. Indeed, the ArrayAdapter is responsible for providing a view that locates at a specific position for the ListView. The ArrayAdapter conceptually is a bridge between the items List and ListView objects. It is very necessary to understand that the ListView is only responsible for visually presenting the items.Īn ArrayAdapter is another Java public class that extends BaseAdapter class that adapts the items from the list and provides them for the ListView. It should be noted that the list is automatically made scrollable whenever it is needed based on the amount of data. These properties are properly shown on the screen in this article.Ī ListView is a Java public class that extends from AbsListView that groups several items and shows them in a vertically scrollable list. The items are a set of users that have some properties, namely image, username, phone number, and email address. This article develops an app that displays a list of items. For this purpose, two objects are needed, namely ListView and ArrayAdapter.

The main goal is to show the items (users) of the List on the screen through a scrollable visualization. For example, users are the scrollable items in the developed app. The scrollable items are collected at a List ( ArrayList) object that holds all items that are desired to be properly displayed. Sometimes, it is needed to display a set of scrollable items in Android that can be dynamically manipulated.

Android studio listview adapter objects