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)

Creating and implementing the TwitterSignInPageRenderer (iOS)

In this section, we'll take a look at how to create the TwitterSignInPageRender class for the iOS section of our TrackMyWalks solution, which will essentially contain platform-specific methods relating to the iOS platform. These will communicate with our Twitter API in order to display the Twitter sign in dialog within our TwitterSignInPage XAML ContentPage.

Let's start by creating the TwitterSignInPageRenderer class for our TrackMyWalks app by performing the following steps:

  1. Ensure that the TrackMyWalks solution is open within the Visual Studio for Mac IDE.
  2. Next, within the TrackMyWalks.iOS project, right-click on the CustomRenderers folder, and choose Add | New File... from the pop-up menu.
  3. Then, create a new Empty Class called TwitterSignInPageRenderer within the CustomRenderers folder, as you did in the...