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Xamarin Blueprints

You're reading from   Xamarin Blueprints Leverage the power of Xamarin to create stunning cross-platform and native apps

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Product type Paperback
Published in Sep 2016
Publisher Packt
ISBN-13 9781785887444
Length 516 pages
Edition 1st Edition
Languages
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Author (1):
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Michael Williams Michael Williams
Author Profile Icon Michael Williams
Michael Williams
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Table of Contents (9) Chapters Close

Preface 1. Building a Gallery Application FREE CHAPTER 2. Building a SpeechTalk Application 3. Building a GPS Locator Application 4. Building an Audio Player Application 5. Building a Stocklist Application 6. Building a Chat Application 7. Building a File Storage Application 8. Building a Camera Application

Chapter 4.  Building an Audio Player Application

In this chapter, we move back to native Xamarin. We will integrate native audio functions for processing a sound file using the AVFramework in iOS with the AVAudioSessions, AVAudioSettings, and AVAudioRecorder objects. In Android you will use the MediaPlayer object from the Android.Media library.

Expected knowledge:

  • Some knowledge of either iOS AVAudioSessions, AVAudioSettings, and AVAudioRecorder, or the Android MediaPlayer and MediaRecorder classes
  • NSLayoutConstraints

In this chapter, you will learn the following:

  • Project setup
  • Inversion of control with MVVMCross
  • View models with Xamarin native
  • Creating the bindings
  • NSLayoutContraints
  • MVVMCross setup inside the Portable Class Library
  • Setting up MVVMCross with iOS
  • Setting up MVVMCross with Android
  • The SoundHandler interface
  • Implementing the iOS SoundHandler using the AVAudioPlayer framework
  • The Mvx IoC container
  • The audio player
  • A cleaner code approach to NSLayout
  • Creating AudioPlayerPageViewModel...
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