Book Image

Mac Application Development by Example: Beginner's Guide

By : Robert Wiebe
Book Image

Mac Application Development by Example: Beginner's Guide

By: Robert Wiebe

Overview of this book

It's never been more important to have the ability to develop an App for Mac OS X. Whether it's a System Preference, a business app that accesses information in the Cloud, or an application that uses multi-touch or uses a camera, you will have a solid foundation in app development to get the job done.Mac Application Development by Example takes you through all the aspects of using the Xcode development tool to produce complete working apps that cover a broad range of topics. This comprehensive book on developing applications covers everything a beginner needs to know and demonstrates the concepts using examples that take advantage of some of the most interesting hardware and software features available.You will discover the fundamental aspects of OS X development while investigating innovative platform features to create a final product which take advantage of the unique aspects of OS X.Learn how to use Xcode tools to create and share Mac OS X apps. Explore numerous OS X features including iCloud, multi-touch trackpad, and the iSight camera.This book provides you with an illustrated and annotated guide to bring your idea to life using fundamental concepts that work on Mac.
Table of Contents (17 chapters)
Mac Application Development by Example Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

What is Gatekeeper?


Gatekeeper is a new system service available in Mac OS X 10.8 and later. Gatekeeper looks at downloaded programs to determine if they have been signed by a known developer identity and then either tells the user that the program was downloaded and makes sure they want to run it (if it was signed with a known developer ID) or tells the user that the program is from an unknown developer and does not provide the option to run it.

The only way a user of Mac OS X 10.8 will be able to run an App that is not signed, or that is signed by an unknown developer, is to turn the Gatekeeper off. Since it is unlikely that users will turn Gatekeeper off, if we want to share our App with others we need to sign it with a known Developer ID. Provided we are a member of the developer program, Apple will provide us with a Developer ID so that we can distribute trusted Apps outside of the App store.

Finally, if an App is modified (hacked or corrupted) after it has been signed, Gatekeeper will...