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)

Adding Location-based Features Within Your App

In the previous chapter, we learned how to leverage what we already know about the Model-View-ViewModel (MVVM) architectural design pattern and learned how to navigate between each of our ViewModels within our TrackMyWalks application. You learned how to create a BaseViewModel base class that each of our ViewModels will inherit from, as well as how to go about creating the associated C# class files for each of our ViewModels that will data bind to each of the properties defined within our XAML pages.

To end the chapter, you learned how to add ContextActions to your (XAML) content pages, and how to implement the code action events within your code so that you can respond to those actions.

In this chapter, you'll learn how to incorporate platform-specific features within your application, dependent on the mobile platform that is...