Objective-C has been Apple’s language of choice for iOS App development since the iPhone first arrived on the scene in 2007. With well over a million apps available for purchase written in Objective-C, its importance and relevance remain crucial for any development team.
This three-day course will provide a thorough exploration of object-oriented programming with Objective-C through a myriad of hands-on labs and exercises that will cover both the theoretical and practical aspects of the language. Topics covered will include Objective-C data types, working with collection objects, control-flow, creating custom classes, inheritance, polymorphism, dynamic binding and dynamic typing, the foundation framework, working with the iOS File System and much more.
An in-depth exploration of Xcode – Apple’s IDE for developing iOS Apps – will also be an integral part of this class. Students will use it to write a myriad of programs that demonstrate the concepts being taught.
Students will have gained a solid foundation and understanding of how Objective-C works, a strong familiarity with the Xcode IDE, and thus be ideally prepared to move on to learning iOS app development.
Audience: Beginner programmers as well as experienced programmers who are not familiar with Objective-C.
Course Duration: 3 days
Prerequisites:
Previous programming experience is recommended but not mandatory. Basic familiarity with Mac computers and working in Mac OS X is recommended.
Hardware and Software Requirements:
- Mac computers running OS X 10.10 (“Yosemite”) or greater. An iOS device is optional
- Xcode 7.0 (free download at: https://developer.apple.com/xcode)
- A projector with mini-HDMI adapter for the instructor
- Mac computers running OS X 10.10 (“Yosemite”) or greater. An iOS device is optional
- Xcode 7.0 (free download at: https://developer.apple.com/xcode)
- A projector with mini-HDMI adapter for the instructor
Course Objectives:
- Learn to use building blocks of programming, including variables, conditionals and loops
- Understand how to use Fast Enumeration and how to work with collection objects such as NSArrays, NSDictionaries and NSSets
- Create custom classes; write instance and class methods
- Understand object-oriented messaging, inheritance, polymorphism, dynamic binding and dynamic typing
- Learn to use the Foundation Framework’s classes and data structures: NSString, NSNumber, NSDate, etc.
- Declare struts and enums
- Write full-fledged Objective-C programs
- Learn to use building blocks of programming, including variables, conditionals and loops
- Understand how to use Fast Enumeration and how to work with collection objects such as NSArrays, NSDictionaries and NSSets
- Create custom classes; write instance and class methods
- Understand object-oriented messaging, inheritance, polymorphism, dynamic binding and dynamic typing
- Learn to use the Foundation Framework’s classes and data structures: NSString, NSNumber, NSDate, etc.
- Declare struts and enums
- Write full-fledged Objective-C programs
Course Outline:
- Creating and Running an Objective-C Project in Xcode
- Xcode IDE Overview
- Building and Testing Programs the Workflow
- Working with Data Types, Variables and Constants
- Declaring Variables, Performing Basic Operations
- Primitive Data Types: Ints, Floats, Doubles, Bools, Chars
- Strings – Literals, Mutability, Concatenation
- Logging Variable Values and String Literals to Xcode’s Console
- Type Casting
- Arithmetics and Expressions
- Addition, Subtraction, Multiplication, Division, Modulus
- Operator Precedence
- Assignment and Comparison Operators
- Type Conversions Through Mixed Operations
- Introduction to the Math Library and Its Functions
- Control-Flow
- Conditionals
- IF and Ternary Statements
- Compound Relationals
- The Switch Statement
- Nested Conditionals
- Loops
- FOR Loops, FOR-Condition-Increment
- WHILE Loops, DO-WHILE loops
- Loop Control Statements: Continue, Break
- Conditionals
- Creating Custom Classes
- Declaring a Custom Class Using @interface
- Implementing a Custom Class Using @implementation
- Declaring Instance Variables and Instance Methods
- Creating Synthesized Accessor (Getter/Setter) Methods
- Instantiating Objects from Classes
- Sending Messages to Objects and Setting Object Properties
- Inheritance
- Base Classes, Creating Subclasses
- Overriding Methods and Properties
- Using Self
- Extension Through Inheritance
- Polymorphism, Dynamic Typing and Dynamic Binding
- Same Method Names, Different Classes
- Static Typing
- Dynamic Typing and Dynamic Binding
- Run-Time Querying of Objects and Classes
- Working with the ID Type
- The Foundation Framework and Collection Objects
- The NSNumber Class
- Working with NSString and NSMutableString
- Working with NSArrays and NSMutableArrays
- Working with NSDictionaries and NSMutableDictionaries
- Working with NSSet and NSMutableSet
- Fast Enumeration Over Collection Objects
- Data Persistence and Working with iOS File System
- Working with the NSFileManager Class
- File-Paths and the NSURL Class
- Reading, Writing and Copying Files
- Working with Directories
- Working with NSData and NSMutableData
- Custom Data-Types, Protocols and Categories
- Declaring and Working with Objective-C Structures
- Declaring and Working with Objective-C Enums
- Renaming Data-Types with Typdef
- Extending Foundation Classes with Categories
- Understanding and Creating Custom Protocols
- Archiving and Copying Objects
- Shallow vs. Deep Copying
- The NSCopying Protocol
- Archiving XML Property Lists
- Creating Encoding and Decoding Methods
- Working with NSKeyedArchiver
- Creating and Running an Objective-C Project in Xcode
- Xcode IDE Overview
- Building and Testing Programs the Workflow
- Working with Data Types, Variables and Constants
- Declaring Variables, Performing Basic Operations
- Primitive Data Types: Ints, Floats, Doubles, Bools, Chars
- Strings – Literals, Mutability, Concatenation
- Logging Variable Values and String Literals to Xcode’s Console
- Type Casting
- Arithmetics and Expressions
- Addition, Subtraction, Multiplication, Division, Modulus
- Operator Precedence
- Assignment and Comparison Operators
- Type Conversions Through Mixed Operations
- Introduction to the Math Library and Its Functions
- Control-Flow
- Conditionals
- IF and Ternary Statements
- Compound Relationals
- The Switch Statement
- Nested Conditionals
- Loops
- FOR Loops, FOR-Condition-Increment
- WHILE Loops, DO-WHILE loops
- Loop Control Statements: Continue, Break
- Conditionals
- Creating Custom Classes
- Declaring a Custom Class Using @interface
- Implementing a Custom Class Using @implementation
- Declaring Instance Variables and Instance Methods
- Creating Synthesized Accessor (Getter/Setter) Methods
- Instantiating Objects from Classes
- Sending Messages to Objects and Setting Object Properties
- Inheritance
- Base Classes, Creating Subclasses
- Overriding Methods and Properties
- Using Self
- Extension Through Inheritance
- Polymorphism, Dynamic Typing and Dynamic Binding
- Same Method Names, Different Classes
- Static Typing
- Dynamic Typing and Dynamic Binding
- Run-Time Querying of Objects and Classes
- Working with the ID Type
- The Foundation Framework and Collection Objects
- The NSNumber Class
- Working with NSString and NSMutableString
- Working with NSArrays and NSMutableArrays
- Working with NSDictionaries and NSMutableDictionaries
- Working with NSSet and NSMutableSet
- Fast Enumeration Over Collection Objects
- Data Persistence and Working with iOS File System
- Working with the NSFileManager Class
- File-Paths and the NSURL Class
- Reading, Writing and Copying Files
- Working with Directories
- Working with NSData and NSMutableData
- Custom Data-Types, Protocols and Categories
- Declaring and Working with Objective-C Structures
- Declaring and Working with Objective-C Enums
- Renaming Data-Types with Typdef
- Extending Foundation Classes with Categories
- Understanding and Creating Custom Protocols
- Archiving and Copying Objects
- Shallow vs. Deep Copying
- The NSCopying Protocol
- Archiving XML Property Lists
- Creating Encoding and Decoding Methods
- Working with NSKeyedArchiver