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Objective-C for Designers, Part 8: Protocols

with expert John Wiley & Sons

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Course at a glance

Included in these subscriptions:

  • Creative Design Power Pack
  • Power Pack Plus

Release date Release date 5/18/2015
Level Level Beginner
Runtime Runtime 1h 8m
Published eBooks Published eBooks N/A
Hands-on labs Hands-on labs N/A
Sample files Sample files Included
Exams Exams N/A

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Course description

Master Objective-C programming in this 9 part learning series, Objective-C is a general-purpose, object oriented programming language used by Apple to program their OS X and iOS operating systems. This introductory course for using Objective-C to program the Apple iOS starts with the fundamentals including using the terminal and an introduction to Xcode, variables and functions. From there, you’ll learn Objective-C programming basics such as object-oriented concepts, creating multiple instances of a class, and how to work with data types and expressions. Find out how to program logic and decision statements, understand Polymorphism, and implement protocols and delegation.


This course assumes some familiarity programming but not with Objective C. This course is part of 9 course learning series; Objective-C for Designers: Your First Program; Objective-C for Designers: Logic; Objective-C for Designers: Data Types & Loops; Objective-C for Designers: Decision Statements; Objective-C for Designers: Custom Classes; Objective-C for Designers: Inheritance & Polymorphism; Objective-C for Designers: Using Variables; Objective-C for Designers: Protocols & Preprocessor; and Objective-C for Designers: Objects & Memory Management. Please be sure to view the courses in order if you are new to the material.

Meet the expert

John Wiley & Sons Our Creative Design courses are presented by experts from Wiley Publishing. Wiley is a global provider of knowledge and knowledge-enabled services that improve outcomes in areas of research, professional practice, and education. They are the publisher of award-winning journals, encyclopedias, books, and online products and services.

Course outline

Protocols & Preprocessor

Categories & Protocols (28:31)
  • Introduction (00:10)
  • Understanding Categories (04:15)
  • Using Categories (04:17)
  • Privacy with Categories (04:29)
  • Protocols & Delegation (05:32)
  • Using Protocols (04:17)
  • PayBillOnline (05:18)
  • Summary (00:10)
Preprocessor Directives (25:16)
  • Introduction (00:10)
  • Preprocessor Directives (05:20)
  • Using Preprocessor Directives (04:34)
  • Taking Advantage of Preprocessors (04:43)
  • Conditional Compilation (04:40)
  • Using Conditional Compilation (05:37)
  • Summary (00:10)
Number Objects (14:25)
  • Introduction (00:10)
  • Number Objects (03:38)
  • Creating a Number (02:25)
  • Using Number Objects (04:01)
  • Mathematical Operators (03:59)
  • Summary (00:10)