Book Image

Xamarin Blueprints

By : Michael Williams
Book Image

Xamarin Blueprints

By: Michael Williams

Overview of this book

Do you want to create powerful, efficient, and independent apps from scratch that will leverage the Xamarin framework and code with C#? Well, look no further; you’ve come to the right place! This is a learn-as-you-build practical guide to building eight full-fledged applications using Xamarin.Forms, Xamarin Android, and Xamarin iOS. Each chapter includes a project, takes you through the process of building applications (such as a gallery Application, a text-to-speech service app, a GPS locator app, and a stock market app), and will show you how to deploy the application’s source code to a Google Cloud Source Repository. Other practical projects include a chat and a media-editing app, as well as other examples fit to adorn any developer’s utility belt. In the course of building applications, this book will teach you how to design and prototype professional-grade applications implementing performance and security considerations.
Table of Contents (14 chapters)
Xamarin Blueprints
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Building a control for the iOS camera


Now that we have built the CameraView object in the Xamarin.Forms PCL, we are going to build the CustomRenderer for iOS. Jump into the Camera.iOS project and add a new folder called Renderers, and then add a new file called CameraiOS.cs and implement the following private properties:

public sealed class CameraIOS : UIView 
    { 
        #region Private Properties 
 
        private readonly string _tag; 
 
        private readonly ILogger _log; 
 
        private readonly AVCaptureVideoPreviewLayer _previewLayer; 
 
        private readonly AVCaptureSession _captureSession; 
 
        private UIView _mainView; 
 
        private AVCaptureDeviceInput _input; 
 
        private AVCaptureStillImageOutput _output; 
 
        private AVCaptureConnection _captureConnection; 
 
        private AVCaptureDevice _device; 
 
         
        private...