Book Image

Xamarin 4.x Cross-Platform Application Development - Third Edition

By : Jonathan Peppers
Book Image

Xamarin 4.x Cross-Platform Application Development - Third Edition

By: Jonathan Peppers

Overview of this book

Xamarin is a leading cross-platform application development tool used by top companies such as Coca-Cola, Honeywell, and Alaska Airlines to build apps. Version 4 features significant updates to the platform including the release of Xamarin.Forms 2.0 and improvements have been made to the iOS and Android designers. Xamarin was acquired by Microsoft so it is now a part of the Visual Studio family. This book will show you how to build applications for iOS, Android, and Windows. You will be walked through the process of creating an application that comes complete with a back-end web service and native features such as GPS location, camera, push notifications, and other core features. Additionally, you’ll learn how to use external libraries with Xamarin and Xamarin.Forms to create user interfaces. This book also provides instructions for Visual Studio and Windows. This edition has been updated with new screenshots and detailed steps to provide you with a holistic overview of the new features in Xamarin 4.
Table of Contents (19 chapters)
Xamarin 4.x Cross-Platform Application Development - Third Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Implementing the login screen


Since the first screen of our application will be a login screen, let's begin by setting up the appropriate views in the storyboard file. We will implement the login screen by using Xamarin Studio to write the C# code, and its iOS designer to create iOS layouts in our storyboard file.

Return to the project in Xamarin Studio and perform the following steps:

  1. Double-click on the Main.storyboard file to open it in the iOS designer.

  2. Select your view controller, click on the Properties pane and select the Widget tab.

  3. Enter LoginController into the Class field.

  4. Notice that the LoginController class is generated for you. You may create a Controllers folder and move the file into it if you wish.

The following screenshot shows what the controller's settings will look like in Xamarin Studio after the changes have been made:

Now let's modify the layout of the controller by performing the following steps:

  1. Double-click on the Main.storyboard file a second time to return to the iOS...