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

The decorator design pattern


Regardless of object creation expense, there are still times when the nature of our model will necessitate an unreasonable number of sub-classes, and this is where the decorator comes in extremely handy.

Take the bread in our sandwich app, for example. We would like to offer several types of bread, but in addition, we want to offer the choice of having the bread toasted, the sandwich open, and a selection of spreads. By creating toasted and open versions for each bread type, the project would very soon become unmanageable. The decorator allows us to add functionality and properties to an object during runtime without having to make any changes to the original class structure.

Setting up a decorator

One might think that properties such as toasted and open could be included as part of the bread class, but this itself can lead to increasingly unwieldy code. Say that we want bread and filling to inherit from the same class, say ingredient. This would make sense as they...