Book Image

Xamarin Blueprints

By : Michael Williams
Book Image

Xamarin Blueprints

By: Michael Williams

Overview of this book

Do you want to create powerful, efficient, and independent apps from scratch that will leverage the Xamarin framework and code with C#? Well, look no further; you’ve come to the right place! This is a learn-as-you-build practical guide to building eight full-fledged applications using Xamarin.Forms, Xamarin Android, and Xamarin iOS. Each chapter includes a project, takes you through the process of building applications (such as a gallery Application, a text-to-speech service app, a GPS locator app, and a stock market app), and will show you how to deploy the application’s source code to a Google Cloud Source Repository. Other practical projects include a chat and a media-editing app, as well as other examples fit to adorn any developer’s utility belt. In the course of building applications, this book will teach you how to design and prototype professional-grade applications implementing performance and security considerations.
Table of Contents (14 chapters)
Xamarin Blueprints
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Setting up the AuthenticationRepository


Now we move on to the AuthenticationRepository. This is the object that will handle access and storage using the UserManager framework provided by the Identity.EntityFramework library. Add in a new folder called Repositories, then add a new file called AuthenticationRepository.cs, and implement the following:

Note

The UserManager class is a facade for providing identity management in any ASP.Net application

public class AuthenticationRepository : IDisposable 
    { 
        private AuthenticationContext authenticationContext; 
        private UserManager<IdentityUser> userManager; 
  
        public AuthenticationRepository() 
        { 
            authenticationContext = new AuthenticationContext(); 
            userManager = new UserManager<IdentityUser>(new UserStore<IdentityUser>(authenticationContext)); 
        } 
  
        public async Task<IdentityResult> RegisterUser...