Mobile
Reader small image

You're reading from  Android 9 Development Cookbook - Third Edition

Product typeBook
Published inOct 2018
Reading LevelIntermediate
PublisherPackt
ISBN-139781788991216
Edition3rd Edition
Languages
Kotlin
Tools
Android
Concepts
Android Development
Right arrow
Author (1)
Rick Boyer
Rick Boyer
author image
Rick Boyer

Rick Boyer has been programming professionally for over 20 years. He has written apps on Windows, created websites, and coded for various mobile devices, including Windows CE, Windows Phone, and Android. Almost eight years ago, he took the plunge and started his own software consulting business, NightSky Development, focusing exclusively on Android development.
Read more about Rick Boyer

Right arrow

Introduction

In Android, the user interface is defined in a layout. A layout can be declared in XML or created dynamically in code. (It's recommended to declare the layout in XML rather than in code to keep the presentation layer separate from the implementation layer.) A layout can define an individual ListItem, a fragment, or even the entire activity. Layout files are stored in the /res/layout folder and referenced in code with the following identifier: R.layout.<filename_without_extension>.

Android provides a useful variety of Layout classes that contain and organize individual elements of an activity (such as buttons, checkboxes, and other Views). The ViewGroup object is a container object that serves as the base class for Android's family of Layout classes. The Views placed in a layout form a hierarchy, with the topmost layout being the parent.

Android provides several built-in layout types designed for specific purposes, such as RelativeLayout, which allows Views to be positioned...

lock icon
The rest of the page is locked
Previous Page
Chapter 8 of 24, Page 2
Next Page
You have been reading a chapter from
Android 9 Development Cookbook - Third Edition
Published in: Oct 2018Publisher: PacktISBN-13: 9781788991216
© 2018 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Rick Boyer

Rick Boyer has been programming professionally for over 20 years. He has written apps on Windows, created websites, and coded for various mobile devices, including Windows CE, Windows Phone, and Android. Almost eight years ago, he took the plunge and started his own software consulting business, NightSky Development, focusing exclusively on Android development.
Read more about Rick Boyer

Other recommended products

Related to this chapter

Android Wear Projects

Android Wear Projects

Android Wear Projects is your opportunity to step into the exciting new world of Android Wear App development. This book will help you to master the skills in Android Wear programming and give you a complete insight on wear app development.

BookJul 2017416 pages
Building Android UIs with Custom Views

Building Android UIs with Custom Views

To build great user interfaces for your Android apps that go beyond the standard UI elements, you need to use custom Android views. With these you can give your app a distinctive look and ensure that it functions properly across multiple devices. This book will help you construct a great UI for your apps by teaching you how to create custom Android views.

BookOct 2017294 pages
Android Things Projects

Android Things Projects

Android Things is the latest operating system that Google has created which powers smart devices and Internet of Things gadgets. The main goal of this book is to give to the readers a detailed knowledge about the Android Things framework. Using practical projects they will be encouraged to experiment the new Android Things OS. At the end, they will be ready to develop interesting and exciting IoT projects.

BookJun 2017232 pages
Learning Android Game Development

Learning Android Game Development

Creating games can be the most fun-filled way to learn a coding language or a platform. This book will take you on a fun-filled ride where you’ll not only learn about the latest Android N SDK, but also how you can create highly interactive and interesting games with it. Focused on 2D game development, this book is an entry-level look at how to make games on the Android N platform.

BookMay 2017238 pages
Hands-On Android UI Development

Hands-On Android UI Development

A great user interface (UI) can spell the difference between success and failure for any new application. This book will show you not just how to code great UIs, but how to design them as well. It will take novice Android developers on a journey, showing them how to leverage the Android platform to produce stunning Android applications.

BookNov 2017348 pages
Mastering Android Development with Kotlin

Mastering Android Development with Kotlin

Kotlin is a programming language intended to be a better Java, and it is designed to be usable and readable across large teams with different levels of knowledge. Kotlin gives more to Android than Java ever did. With this book, you will learn how to create effective and modern applications using a cutting edge programming language. We’ll teach you Android from novice to master level, and guide you to become an experienced Android developer

BookNov 2017378 pages
Mastering Android Studio 3

Mastering Android Studio 3

Android Studio is an Integrated Development Environment (IDE) designed for developing Android apps. As with most development processes, Android keeps resources and logic nicely separated, and so this book covers the management of imagery and other resources, and the development and testing tools provided by the IDE.

BookAug 2017220 pages
Mastering Firebase for Android Development

Mastering Firebase for Android Development

Firebase is a completely scalable, real-time backend service and provides all the tools necessary to develop rich, collaborative applications using client side code. This books will take deep dive into the features of Firebase by exploring its complete toolchain.

BookJun 2018394 pages
Android Programming for Beginners

Android Programming for Beginners

Are you trying to start a career in programming, but haven't found the right way in? Do you have a great idea for an app, but don't know how to make it a reality? Or maybe you're just frustrated that to learn Android, you must know Java. If so, then this book is for you. It will be your companion to create Android applications from scratch. We will introduce you to all the fundamental concepts of programming in an Android context, from the basics of Java to working with the Android API. All examples are created from within Android Studio, the official Android development environment that helps supercharge your application development process.

BookOct 2018766 pages
Expert Android Programming

Expert Android Programming

Android O brings a number of important changes for the users as well as the developers. If you want to create smart android applications which are fast, lightweight and also highly efficient then this is the book that will solve all your problems.

BookSep 2017404 pages
Android Programming for Beginners

Android Programming for Beginners

Learn Java, Android, and app development concepts easily with this updated third edition of Android Programming for Beginners. Whether you want to become a professional Android developer or just want to have fun learning Java and Android, this Android Java programming book is what you need.

BookApr 2021742 pages
How to Build Android Apps with Kotlin

How to Build Android Apps with Kotlin

This book will equip?you to create high-quality, visually appealing Android 11 apps from scratch with Kotlin. You’ll discover a wide range of real-world development challenges faced by developers and explore various techniques to overcome them.

BookFeb 2021794 pages