Book Image

Xamarin Mobile Development for Android Cookbook

By : Matthew Leibowitz
Book Image

Xamarin Mobile Development for Android Cookbook

By: Matthew Leibowitz

Overview of this book

Xamarin is used by developers to write native iOS, Android, and Windows apps with native user interfaces and share code across multiple platforms not just on mobile devices, but on Windows, Mac OS X, and Linux. Developing apps with Xamarin.Android allows you to use and re-use your code and your skills on different platforms, making you more productive in any development. Although it’s not a write-once-run-anywhere framework, Xamarin provides native platform integration and optimizations. There is no middleware; Xamarin.Android talks directly to the system, taking your C# and F# code directly to the low levels. This book will provide you with the necessary knowledge and skills to be part of the mobile development era using C#. Covering a wide range of recipes such as creating a simple application and using device features effectively, it will be your companion to the complete application development cycle. Starting with installing the necessary tools, you will be guided on everything you need to develop an application ready to be deployed. You will learn the best practices for interacting with the device hardware, such as GPS, NFC, and Bluetooth. Furthermore, you will be able to manage multimedia resources such as photos and videos captured with the device camera, and so much more! By the end of this book, you will be able to create Android apps as a result of learning and implementing pro-level practices, techniques, and solutions. This book will ascertain a seamless and successful app building experience.
Table of Contents (20 chapters)
Xamarin Mobile Development for Android Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Preparing for in-app billing


When implementing in-app billing, there needs to be a selection of products or subscriptions available for the user to purchase.

Getting ready

Before we can develop and implement in-app billing, we will require two Google accounts. One will be the merchant account, which will publish the app to the Play Store and provide the products. The other will be used for development and testing of purchases.

Note

Two accounts are required for testing because Google does not allow purchases to be made from the merchant account.

The merchant account should be registered as a Google developer (http://play.google.com/apps/publish) and linked to Google Wallet (http://www.google.com/wallet/merchants.html). The other account only needs to be a Google account.

How to do it...

Before we prepare the Play Store app listing, we need to prepare the app package for upload:

  1. We can either create a new, empty Xamarin.Android app project or use an existing project.

  2. We then need to add the billing...