Introduction to Objective-C for iOS Development

Delivery Options

• Live Online Training - Public Class (4 days): $1,700.00 (Register)

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Class Description

Class Overview

Class Goals

• Learn how to use Xcode to develop Objective-C programs.
• Learn how to define primitive and reference variables.
• Understand the use of arithmetic operators.
• Know how to write conditional and looping statements.
• Learn how to write and call a function.
• Understand the object-oriented features of Objective-C.
• Learn how to create objects and methods.
• Understand important classes in the Foundation framework.
• Learn how to build a basic user interface using the Cocoa framework

Class Outline

1. Objective-C Overview
   1. The Xcode IDE
      1. Projects
      2. Hello World Application
   2. Objective-C
      1. Language Features
      2. Brief History
      3. Role in Mobile Device Applications
2. Variables
   1. Numeric Variables
      1. Numeric Representations
      2. Integers
      3. Floating Point
      4. Comments
   2. Nonnumeric Variables
      1. char
      2. boolean
   3. Reference Variables
   4. The * and & Operators
   5. Variable Scope
3. Arithmetic
   1. Arithmetic Operators
      1. Addition and Subtraction
      2. Multiplication, Division, and Modulus
      3. Shorthand Notation
   2. Type Casting
   3. Math Library Functions
      1. pow
      2. random
4. Conditional Logic and Looping
   1. Conditional Statements
      1. Basic if Statement
      2. if else Statement
      3. switch Statement
      4. The Ternary Operator
   2. Looping Statements
      1. while Statement
      2. do...while Statement
      3. for Statement
5. Functions
   1. Purpose of a Function
   2. Declaration
      1. Header
      2. Body
   3. Calling a Function
      1. Passing Parameters by Value
      2. Passing Parameters by Reference
   4. Functions vs. Methods
6. Object-oriented Programming According to Objective-C
   1. Object-oriented Programming (OOP)
   2. How Objective-C Implements OOP
   3. Encapsulation of Member Variables
      1. The Class Definition: Interface
      2. The Class Interface and @property
      3. Method vs. Function Syntax
      4. The Class Implementation and @synthesize
   4. Creating an Object from a Class
      1. Sending Messages to Objects
      2. The Role of Methods
   5. Visibility of Variables
7. Inheritance
   1. Purpose of Inheritance
   2. Implementing Inheritance
      1. The Root Super Class
      2. Creating and Processing the Subclass
   3. NSObject Class
   4. Memory Acquisition
      1. alloc
      2. init
   5. Method Override
   6. Where's Abstraction?
8. Polymorphism
   1. The Purpose of Polymorphism
   2. Polymorphism in Objective-C
   3. Placing Objects in Collections
      1. Using NSMutableArray
   4. Runtime Identification of Objects
9. Arrays
   1. The "Classic" C Array
      1. Defining the Array
      2. Processing the Array
   2. Foundation Framework Arrays
      1. NSArray
      2. NSMutableArray
10. Foundation Framework
    1. The Foundation Framework
       1. Strings
       2. Date/Time
       3. Numbers
       4. Collections
    2. NSString
       1. Replacing char*
       2. Initialization
       3. NSString Methods
    3. NSNumber and NSNumberFormatter
       1. Replacing int, float, and more
       2. Initialization
       3. NSUInteger and NSInteger
       4. Formatting
    4. NSDate and NSDateFormatter
       1. NSDate
       2. NSDateFormatter
11. Collections
    1. Arrays
       1. NSArray
       2. NSMutableArray
    2. Sets
       1. NSSet
       2. NSMutableSet
       3. How Duplicate Elements are Detected: isEqual and hash
    3. Dictionaries
       1. NSDictionary
       2. NSMutableDictionary
12. Memory Considerations
    1. Memory Management in Objective-C
       1. Manual Retain-release
       2. Automatic Reference Counting
       3. Garbage Collection
    2. Strong and Weak
    3. Release and Retain
    4. Atomic and Nonatomic
    5. Automatic Reference Counting
13. Cocoa Framework
    1. The Purpose of Cocoa
    2. User Interfaces
       1. What Is a User Interface?
       2. View Controllers
    3. Using Interface Builder to Create User Interfaces
       1. The XIB File
       2. IBAction and IBOutlet
       D
       3. rag and Drop with the Connections Inspector
    4. Creating a Simple Mobile Application
       1. Creating the Project
       2. Adding Properties and Synthesized Methods
       3. Building the User Interface
       4. Testing the Application

Class Materials

Each student in our Live Online and our Onsite classes receives a comprehensive set of materials, including course notes and all the class examples.

Class Prerequisites

Experience in the following areas is required:

Basic computer experience.

Experience in the following areas would be beneficial:

• Some programming experience in any language.
• End-user experience with an iPod, iPhone, or iPad.

Technical Requirements

Our computer technical requirements and setup process is easy, with support just a click away.

• Instructor-led Online course technical requirements and setup instructions.
• WebEx system requirements for Instructor-led Online delivery option.
• Onsite course technical requirements and setup instructions.

Potential Follow-on Classes

• iOS Application Development with Xcode 4 Training