Objective-C: The Ultimate Guide

Description

Objective-C is a general-purpose, object-oriented programming language that extends the C programming language with Smalltalk-style messaging. While simultaneously developing for OS X and iOS, Objective-C's capabilities have been bolstered by the inclusion of a dynamic runtime and assistance for object-oriented programming. Objective-C: The Ultimate Guide walks developers and coders through a straightforward and practical method of learning the Objective-C programming language. This book discusses the basics in brief, and then moves on to more advanced and detailed exercises to help readers quickly gain the required knowledge. The focus in this book remains on writing optimized and well-structured code in Objective-C. Key Features Follows a hands-on approach and offers practical lessons and tutorials related to Objective-C Discusses Objective-C using real world industry concepts Includes at-length discussion of Objective-C concepts to help build robust knowledge Cover Half Title Title Page Copyright Page Dedication Contents About the Author Acknowledgments CHAPTER 1: Crash Course in Objective-C OBJECTIVE-C SPECIFICS WHY OBJECTIVE-C? DIFFERENTIATING OBJECTIVE-C VERSUS SWIFT DIFFERENTIATING OBJECTIVE-C FROM C++ UPSIDES AND DOWNSIDES OF OBJECTIVE-C Upsides Downsides FACTORS TO CONSIDER OBJECTIVE-C OVERVIEW FRAMEWORK FOR THE FOUNDATION LEARNING OBJECTIVE-C USING OBJECTIVE-C SETUP OF THE OBJECTIVE-C ENVIRONMENT LOCAL ENVIRONMENT CONFIGURATION EDITOR OF TEXT GCC COMPILER UNIX/LINUX INSTALLATION MAC OS INSTALLATION WINDOWS INSTALLATION STRUCTURE OF THE OBJECTIVE-C PROGRAM OBJECTIVE-C EXAMPLE OF HELLO EVERYONE BASIC SYNTAX IN OBJECTIVE-C OBJECTIVE-C TOKENS SEMICOLONS; COMMENTS IDENTIFIERS KEYWORDS WHITESPACE IN OBJECTIVE-C DATA TYPES IN OBJECTIVE-C TYPES OF INTEGERS TYPES OF FLOATING-POINT VOID TYPE VARIABLES IN OBJECTIVE-C OBJECTIVE-C VARIABLE DEFINITION OBJECTIVE-C VARIABLE DECLARATION OBJECTIVE-C lvalues AND rvalues CONSTANTS IN OBJECTIVE-C INTEGER LITERALS FLOATING-POINT LITERALS CHARACTER CONSTANTS STRING LITERALS CONSTANT DEFINITION #define Preprocessor const Keyword OPERATORS IN OBJECTIVE-C ARITHMETIC OPERATORS IN OBJECTIVE-C RELATIONAL OPERATORS LOGICAL OPERATORS IN OBJECTIVE-C BITWISE OPERATORS ASSIGNMENT OPERATORS MISC OPERATORS ↦ SIZEOF & TERNARY OPERATORS’ PRECEDENCE IN THE OBJECTIVE-C LOOPS IN OBJECTIVE-C CONTROL STATEMENTS FOR LOOPS INFINITE LOOP DECISION MAKING IN OBJECTIVE-C THE ? : OPERATOR FUNCTIONS IN OBJECTIVE-C CREATING A METHOD DECLARATIONS OF METHOD CALLING A METHOD FUNCTION ARGUMENTS BLOCKS IN OBJECTIVE-C Simple Block Declaration Syntax Implementation of a Simple Block BLOCKS TAKE ARGUMENTS AND RETURN VALUES BLOCKS USING THE TYPE DEFINITIONS NUMBERS IN OBJECTIVE-C ARRAYS IN OBJECTIVE-C DECLARING ARRAYS ARRAYS INITIALIZATION ACCESSING ARRAY ELEMENTS ARRAYS IN OBJECTIVE-C IN DEPTH POINTERS IN OBJECTIVE-C WHAT EXACTLY ARE POINTERS IN OBJECTIVE-C? How Do Pointers Work? OBJECTIVE-C NULL POINTERS DETAILS ABOUT OBJECTIVE-C POINTERS STRINGS IN OBJECTIVE-C STRUCTURES IN OBJECTIVE-C CREATING A STRUCTURE ACCESS TO STRUCTURE MEMBERS FUNCTION ARGUMENTS AS STRUCTURES POINTERS TO STRUCTURES BIT FIELDS PREPROCESSORS IN OBJECTIVE-C EXAMPLES OF PREPROCESSORS PREDEFINED MACROS OPERATORS OF PREPROCESSORS Macro Continuation (\) Stringize (#) Token Pasting (##) defined() Operator PARAMETERIZED MACROS Typedef IN OBJECTIVE-C typedef vs #define TYPE CASTING IN OBJECTIVE-C INTEGER PROMOTION USUAL ARITHMETIC CONVERSION LOG HANDLING IN OBJECTIVE-C NSLog METHOD DISABLING LOGS IN THE LIVE Apps ERROR HANDLING IN OBJECTIVE-C NSError COMMAND-LINE ARGUMENTS BIBLIOGRAPHY CHAPTER 2: OOP in Objective-C OBJECT-ORIENTED PROGRAMMING OPERATIONS AND DATA IMPLEMENTATION AND INTERFACE THE OBJECT MODEL THE METAPHOR OF MESSAGING CHARACTERISTIC OF OBJECTIVE-C DEFINITIONS OF OBJECTIVE-C CLASSES ALLOCATING AND INITIALIZING OBJECTIVE-C OBJECTS ACCESSING DATA MEMBERS Properties Modularity Reusability INHERITANCE IN OBJECTIVE-C BASE AND DERIVED CLASSES ACCESS THE CONTROL AND INHERITANCE Hierarchies of Class Definitions of Subclass DYNAMISM POLYMORPHISM IN OBJECTIVE-C DATA ENCAPSULATION IN OBJECTIVE-C EXAMPLE OF DATA ENCAPSULATION CREATING A STRATEGY CATEGORIES IN OBJECTIVE-C CATEGORY CHARACTERISTICS POSING IN OBJECTIVE-C POSING RESTRICTIONS EXTENSIONS IN OBJECTIVE-C EXTENSIONS’ CHARACTERISTICS Example of Extensions PROTOCOLS IN OBJECTIVE-C DYNAMIC BINDING IN OBJECTIVE-C COMPOSITE OBJECTS IN OBJECTIVE-C CLASS CLUSTERS WHAT EXACTLY IS A COMPOSITE OBJECT? An Example of a Composite Object FOUNDATION FRAMEWORK IN OBJECTIVE-C Functionality-Based Foundation Classes FAST ENUMERATION IN OBJECTIVE-C COLLECTIONS IN THE OBJECTIVE-C MEMORY MANAGEMENT IN OBJECTIVE-C “MANUAL RETAIN-RELEASE” OR MRR Basic MRR Rules “AUTOMATIC REFERENCE COUNTING” OR ARC BIBLIOGRAPHY CHAPTER 3: Interface and API iOS IN OBJECTIVE-C IMPLEMENTATION AND INTERFACE OBJECT CREATION METHODS Class Methods Instance Methods IMPORTANT OBJECTIVE-C DATA TYPES Printing Logs CONTROL STRUCTURES PROPERTIES Properties of Accessing CATEGORIES Arrays Dictionary ENVIRONMENT SETUP Installation of Xcode INTERFACE BUILDER SIMULATOR FOR iOS FIRST iPHONE APPLICATION FIRST iOS APPLICATION’S CODE AppDelegate.h AppDelegate.m ViewController.h ViewController.m ACTIONS AND OUTLETS IN iOS DELEGATES IN iOS How to Create a Delegate UI ELEMENTS What Are UI Elements? How Do We Insert UI Elements? Our Focus Our Strategy LIST OF UI ELEMENTS ACCELEROMETER IN iOS UNIVERSAL APPLICATIONS IN iOS CAMERA MANAGEMENT IN iOS LOCATION HANDLING IN iOS SQLite DATABASE IN iOS SENDING EMAIL ON iOS AUDIO AND VIDEO IN iOS FILE HANDLING IN iOS METHODS FOR FILE HANDLING Check to See If a File in Objective-C Exists at a Given Path Comparing the Contents of Two Files Check to See If It Is Writable, Readable, and Executable Move File Copy File Remove File Read File Write File ACCESSING MAPS ON iOS IN-APP PURCHASE IN iOS iAd INTEGRATION IN iOS GameKit IN iOS STORYBOARDS IN iOS AUTO LAYOUTS IN iOS Aim of Our Example Our Strategy The Involved Steps TWITTER AND FACEBOOK ON iOS MEMORY MANAGEMENT IN iOS MEMORY MANAGEMENT CHALLENGES RULES FOR MEMORY MANAGEMENT DEALING WITH MEMORY IN ARC MEMORY MANAGEMENT TOOLS ANALYTICAL METHODS FOR MEMORY ALLOCATIONS APPLICATION DEBUGGING IN iOS CHOOSING A DEBUGGER HOW TO LOCATE CODING ERRORS SET BREAKPOINTS BREAKPOINT EXCEPTION IN AN iOS App, WE MAY USE GOOGLE APIs BIBLIOGRAPHY CHAPTER 4: Functional Programming WHY OBJECT-FUNCTIONAL PROGRAMMING? OBJECTIVE-C FUNCTIONAL PROGRAMMING On Functional Programming On the ObjC Runtime On Objective-C and Language Design WRITE OBJECTIVE-C CODE CLASSES AND OBJECTS METHODS AND COMMUNICATION CLASS METHODS Properties and Accessor Methods Are Declared BLOCKS PROTOCOLS AND CATEGORIES Types and Coding Strategies Are Defined CREATE THE VIDEO App Set the App’s Audio Behavior Build View Controller Class Declaration Import the Brightcove Player SDK Header File into the Program Look at the Code Construct the View Controller Implementation in Objective-C Customize the Project to Reflect Our Values Declare Properties DEFINE INITIALIZATION METHOD Setup Player Configure Player Use the Brightcove Library to Request Material Look at the Code BIBLIOGRAPHY CHAPTER 5: Code Management WHY MUST WE PERFORM THIS? ANATOMY OF A FRAMEWORK STATIC AND DYNAMIC FRAMEWORKS ARCHITECTURES AND SLICING OF PROCESSORS DEVELOPING A DYNAMIC STRUCTURE SETTING UP OUR PROJECT DEVELOPING OUR CODE ACCESS CONTROL UMBRELLA HEADER UNIVERSAL SUPPORT UTILIZING OUR DYNAMIC FRAMEWORK DEVELOPING A STATIC FRAMEWORK SETTING UP OUR PROJECT DEVELOPING OUR CODE ACCESS CONTROL UMBRELLA HEADER PACKAGING MODIFY BUILD SETTINGS TO SUPPORT STATIC FRAMEWORKS MODULE SUPPORT CREATING THE BUNDLE STRUCTURE UNIVERSAL SUPPORT UTILIZING OUR STATIC FRAMEWORK RECOMMENDATIONS COMPILING AND CONSTRUCTING THE FRAMEWORK UPLOADING AN APPLICATION’S FRAMEWORK TO THE APP STORE MEMORY MANAGEMENT IN OBJECTIVE-C “MANUAL RETAIN-RELEASE” OR MRR Basic MRR Rules “AUTOMATIC REFERENCE COUNTING” OR ARC Effective Procedures Prevent Memory-Related Issues DEBUG MEMORY ISSUES USING ANALYSIS TOOLS THE GOAL OF MEMORY MANAGEMENT Avoid Crashing Strong vs Weak Atomic and Nonatomic DESIGN PATTERNS IN iOS FAÇADE When to Use the Facade Pattern? An Illustration of Facade Design Pattern DECORATOR When Should We Use a Decorator Pattern? Example of Decorator Style Design MEMENTO ADAPTER When to Use an Adapter? Illustration of Adapter Pattern OBSERVER When Should We Use a Decorator Pattern? Example of Decorator Style Design STRATEGY FACTORY COMMAND COMPOSITE ITERATOR MEDIATOR SINGLETON When Should We Use the Singleton Design Pattern? Illustration of Singleton Pattern MVC MVP MVVM Feature Assessment VIPER WHAT ARE THE ADVANTAGES OF EMPLOYING iOS DESIGN PATTERNS? Prepared to Develop iOS Applications Using iOS Design Patterns BIBLIOGRAPHY CHAPTER 6: Code Optimization OBJECTIVE-C CODE OPTIMIZATION AT COMPILE TIME OBJECTIVE-C PIPELINE SECURE CODE Security Breach through HTTPS Response Cache RESUME BACKGROUND DISCLOSURE OF SCREENSHOT DATA SSL PINNING BEST PRACTICES WITH OBJECTIVE-C CODING CONVENTION Operators Types Methods Pragma Mark and Implementation Organization Control Structures Switch For While Import Header Prefix Properties Private Methods and Properties Extern, Const, and Static Naming Enums HARDENING OF SYSTEMS Hardening of Systems to Reduce the “Attack Surface” Advantages of System Hardening BIBLIOGRAPHY APPRAISAL OBJECTIVE-C CHEAT SHEET INDEX