Book Image

Android Design Patterns and Best Practice

By : Kyle Mew
Book Image

Android Design Patterns and Best Practice

By: Kyle Mew

Overview of this book

Are you an Android developer with some experience under your belt? Are you wondering how the experts create efficient and good-looking apps? Then your wait will end with this book! We will teach you about different Android development patterns that will enable you to write clean code and make your app stand out from the crowd. The book starts by introducing the Android development environment and exploring the support libraries. You will gradually explore the different design and layout patterns and get to know the best practices of how to use them together. Then you’ll then develop an application that will help you grasp activities, services, and broadcasts and their roles in Android development. Moving on, you will add user-detecting classes and APIs such as gesture detection, touch screen listeners, and sensors to your app. You will also learn to adapt your app to run on tablets and other devices and platforms, including Android Wear, auto, and TV. Finally, you will see how to connect your app to social media and explore deployment patterns as well as the best publishing and monetizing practices. The book will start by introducing the Android development environment and exploring the support libraries. You will gradually explore the different Design and layout patterns and learn the best practices on how to use them together. You will then develop an application that will help you grasp Activities, Services and Broadcasts and their roles in Android development. Moving on, you will add user detecting classes and APIs such as at gesture detection, touch screen listeners and sensors to our app. You will also learn to adapt your app to run on tablets and other devices and platforms, including Android Wear, Auto, and TV. Finally, you will learn to connect your app to social media and explore deployment patterns and best publishing and monetizing practices.
Table of Contents (20 chapters)
Android Design Patterns and Best Practice
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Constructing layout builders


So far in this book, all the layouts we have constructed have been static XML definitions. As you would expect, however, it is perfectly possible to construct and inflate UIs dynamically from our source code. Furthermore, Android layouts lend themselves very nicely to the builder pattern, as we saw with our alert dialog, as they are comprised of an ordered collection of smaller objects.

The following example will follow the builder design pattern to inflate a linear layout from a series of predefined layout views. As before, we will build up from interfaces to abstractions and concrete classes. We will create two kinds of layout item, a title or headline view and a content view. We then make several concrete examples of these that can then be constructed by the builder. As there are some features that all views have in common (text and background colors in this case), we will avoid having to duplicate methods by having another interface, with its own concrete...