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 strategy pattern


The strategy pattern is another widely used and incredibly useful. Its beauty lies in its versatility as it can be applied in numerous situations. Its purpose is to provide a selection of solutions (strategies) to a given problem at runtime. A good example would be an app with a strategy to run different code depending whether the app was being installed on Windows, Mac OS, or Linux. Were the system of designation we used above to design UIs for different devices so efficient, we could easily use a strategy pattern to carry out this task. It would look something like this:

For now, we will step ahead a little and imagine a situation where the users of our sandwich maker app are ready to pay. We will assume three methods: credit card, cash, and a coupon. Those paying cash will simply pay the set price. A little unfairly, those paying by card will be charged a small fee and those with a coupon will get 10% off. We will also use a singleton to represent the basic price...