Book Image

Mastering Xamarin UI Development - Second Edition

By : Steven F. Daniel
Book Image

Mastering Xamarin UI Development - Second Edition

By: Steven F. Daniel

Overview of this book

This book will provide you with the knowledge and practical skills that are required to develop real-world Xamarin and Xamarin.Forms applications. You’ll learn how to create native Android app that will interact with the device camera and photo gallery, and then create a native iOS sliding tiles game. You will learn how to implement complex UI layouts and create customizable control elements based on the platform, using XAML and C# 7 code to interact with control elements within your XAML ContentPages. You’ll learn how to add location-based features by to your apps by creating a LocationService class and using the Xam.Plugin.Geolocator cross-platform library, that will be used to obtain the current device location. Next, you’ll learn how to work with and implement animations and visual effects within your UI using the PlatformEffects API, using C# code. At the end of this book, you’ll learn how to integrate Microsoft Azure App Services and use the Twitter APIs within your app. You will work with the Razor Templating Engine to build a book library HTML5 solution that will use a SQLite.net library to store, update, retrieve, and delete information within a local SQLite database. Finally, you will learn how to write unit tests using the NUnit and UITest frameworks.
Table of Contents (15 chapters)

Summary

In this chapter, you learned how to apply for a Twitter developer account so that you can incorporate social networking features by creating and registering our TrackMyWalks app within the Twitter Developer Portal. You then incorporated the Xamarin.Auth NuGet package within our solution and created a TwitterService Interface and Class that we can use to communicate with the Twitter APIs using RESTful web service calls. Next, you created the TwitterSignInPage, along with the associated TwitterSignInPageViewModel and TwitterSignInPageRenderer classes, so that users can sign into your app using their Twitter credentials. You updated the WalksMainPage code-behind to call our TwitterSignInPage to check whether the user has signed in.

Finally, you made changes to our WalkDistancePage XAML and code-behind so that we can utilize our TwitterService class to display profile information...