---
product_id: 4968747
title: "Building iPhone OS Accessories: Use the iPhone Accessories API to Control and Monitor Devices (Books for Professionals by Professionals) 1st ed. Edition"
brand: "ken maskrey"
price: "Bs.779"
currency: BOB
in_stock: true
reviews_count: 6
url: https://www.desertcart.bo/products/4968747-building-iphone-os-accessories-use-the-iphone-accessories-api-to
store_origin: BO
region: Bolivia
---

# Building iPhone OS Accessories: Use the iPhone Accessories API to Control and Monitor Devices (Books for Professionals by Professionals) 1st ed. Edition

**Brand:** ken maskrey
**Price:** Bs.779
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Building iPhone OS Accessories: Use the iPhone Accessories API to Control and Monitor Devices (Books for Professionals by Professionals) 1st ed. Edition by ken maskrey
- **How much does it cost?** Bs.779 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/4968747-building-iphone-os-accessories-use-the-iphone-accessories-api-to)

## Best For

- ken maskrey enthusiasts

## Why This Product

- Trusted ken maskrey brand quality
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## Description

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## Images

![Building iPhone OS Accessories: Use the iPhone Accessories API to Control and Monitor Devices (Books for Professionals by Professionals) 1st ed. Edition - Image 1](https://m.media-amazon.com/images/I/61DBRcCxm7L.jpg)

## Customer Reviews

### ⭐⭐ 2.0 out of 5 stars







  
  
    Waste of time
  

*by S***R on Reviewed in the United States on January 7, 2014*

After reading this book, I honestly think it's a waste of time.  It's obvoius the author is an intellegent person but the chapters tend to jump from what seems to be novice topics to expert with little to no transition information.  As well, I was not happy with how the book, as a whole, was organized.The author can't, and doesn't, really tell you HOW to get the app working with an External Accessory.  At best, all he can do is tell you to join the Apple Developers program, and the Apple MFI program and where to go get the information.  He give's very little code samples and does nothing to show how it's all put together.Even as a beginnig Apple programmer (I'm an electrical engineer), I learned little, if anything, from this book.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Super excited!
  

*by D***R on Reviewed in the United States on July 14, 2010*

Awesome!  Super excited to see an Accessories book come out.  The ExternalAccessoriesFramework has been a sleeping giant for a year now waiting for enough momentum to really break out.  I would really love to see a community of MFi companies releasing accessories with publicly available EA Protocols for any iPhone developer.  I can totally see a future of one MFi company releasing a product that hundreds of apps/ app developers could use.  Get a jump on the accessories gold rush (okay gold rush is wrong, maybe gold trickle) and become a master of the External Accessories framework.  I have not completed the book yet.  I'm just super excited that Apress has an accessories book available now!

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Great Resource
  

*by J***N on Reviewed in the United States on September 6, 2016*

Contrary to some other reviews about this book, I found that this was worth the time and money. The author thoroughly describes the External Accessory Framework, which is necessary for an accessory and iOS app to communicate. He also explains that he cannot give you the answer to everything because Apple requires that a partnership be made between your company and Apple (MFI certification) in order to receive some very important documentation. Without thoroughly reading this book and being patient, the reader may find this book to be a waste of time, but in reality the author gives you every answer he can. I gave this book a four star rating because it seemed that some topics in the book were unnecessary such as OOP concepts. Such topics should be left to an entirely separate book, in my opinion. Overall, this book was well written and for someone who is interested in making an iPhone accessory, it is a very handy book.

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-03-01*