Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Learning Android Application Development
  • Table Of Contents Toc
  • Feedback & Rating feedback
Learning Android Application Development

Learning Android Application Development

By : Ràfols Montane, Dawson
2.7 (3)
close
close
Learning Android Application Development

Learning Android Application Development

2.7 (3)
By: Ràfols Montane, Dawson

Overview of this book

The mobile app market is huge. But where do you start? And how you can deliver something that takes Google Play by storm? This guide is the perfect route into Android app development – while it’s easy for new apps to sink without a trace, we’ll give you the best chance of success with practical and actionable guidance that will unlock your creativity and help you put the principles of Android development into practice. From the fundamentals and getting your project started to publishing your app to a huge market of potential customers, follow this guide to become a confident, creative and reliable mobile developer. Get to grips with new components in Android 7 such as RecyclerView, and find out how to take advantage of automated testing, and, of course, much, much more. What are you waiting for? There’s never been a better time – or a better way – to get into Android app development.
Table of Contents (11 chapters)
close
close

Adapters

We have been using adapters already to populate our ListView, but we have only seen one kind of adapter and there are many. In this section, we will introduce the most common adapters and how they can be used. We will also cover performance optimization, as it is one of the critical topics when talking about lists.

ArrayAdapter

We have already introduced ArrayAdapter in all our previous examples and we know, quite clearly, how to use it. However, if we would like to use it with a more complex view than TextView, we can easily do so by overriding the getView(int, View, ViewGroup) method and returning the desired kind of view, as shown in the following screenshot:

ArrayAdapter

First, we will start by creating the layout resource file that we would like to use for each list item. Once we have done that, we will have to modify the code to use this new layout and set the texts to the right views.

The code to do this is shown in the following screenshot:

ArrayAdapter

We've changed many things...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist download font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY