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
About the Author
About the Reviewer
Customer Feedback

Adding a list of messages

Now let's implement the screen to view a conversation or list of messages. We will try to model the screen on the built-in text message application in iOS. To do so, we will also cover the basics of how to create custom table view cells.

To start, we'll need a new MessagesController class; perform the following steps:

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

  2. Add a new Table View Controller to the storyboard.

  3. Select your view controller, click on the Properties pane and make sure you have selected the Widget tab.

  4. Enter MessagesController into the Class field.

  5. Scroll down to the View Controller section and enter Messages in the Title field.

  6. Create a segue from ConversationsController to MessagesController by holding Ctrl and dragging the blue line from one controller to the other.

  7. Select the Show segue from the pop up that appears. Enter the Identifier OnConversation in the Properties pane.

  8. Now create two Table View Cells in the table view...