This guide was originally drafted by Adegeye Mayowa to close #127. The project described below assumes you have a list of objects created, this can be either downloaded from the internet as XML and parsed to create ArrayList of. The sample code for this tutorial can be found in this github repo. Create model classĮach of our ListView rows will conatain an Item name and Item description, so our Model class is as follows:

View getView(int position, View convertView, ViewGroup parent)īefore we create our custom BaseAdapter implementation, we need to create the layout for the ListView row and also a model for the items in the ListView.

To use the BaseAdapter with a ListView, a concrete implementation the BaseAdapter class that implements the following methods must be created:

Note that ArrayAdapter itself extends from BaseAdapter. If your data source is an ArrayList or array, we can also use the ArrayAdapter construct as an alternative. It is abstract and therefore, cannot be directly instantiated.

A lot of this project is identical to the previous post in this series so try to look there first if you have any problems. BaseAdapterīaseAdapter, as it's name implies, is the base class for so many concrete adapter implementations on Android. Next up in line: from JSON to a Listview. The list items are automatically inserted into the list using an adapter that is connected to a source, such as an array or a database query, and each item is converted into a row in the ListView.

ListView is a ViewGroup that displays a list of vertically scrollable items.

Android studio listview parse