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Intro To iOS

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Fernholz

This document provides an overview of iOS development including: - The basics needed to get started like a Mac computer, Xcode, and familiarity with object-oriented programming - An introduction to the Objective-C language and how it relates to C and Smalltalk - An overview of Xcode as the integrated development environment - Explanations of key iOS development concepts like class structure, syntax, memory management using ARC, categories, and using storyboards and XIB files to design views - A promise to code something live as an example during the presentation

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Intro to iOS Development A COMPREHENSIVE OVERVIEW Derek Fernholz Developer @fernholz derek@blendinteractive.com 1
The Necessities STARTED WHAT YOU NEED TO GET • Mac (in our case, running Mac OS X 10.7 or higher) • XCode 4.5+ • iOS SDKs • Familiarity with or willingness to learn Object Oriented Programming 2
Language - Objective-C LEARNING TO LOVE [ ] • The Objective-C language is a simple computer language designed to enable sophisticated object-oriented programming. • Knowing or having an understanding of C will help you understand this language • It is a C superset based and built on Smalltalk 3
The IDE A ONE-STOP SHOP • (Live Demo / Walkthrough) 4
Class Structure THE BASICS • Interface vs. Implementation • Instance vs. Class • Instance Variables, Properties, Setters & Getters, and Synthesizing 5
Syntax YOU’LL GET USED TO IT • NSString *string = [NSString string] • [NSString stringWithFormat:[prefs format]]; • return [object name] (same as) return object.name • More as we dive into the code 6
Memory Management WHY YOU’LL LOVE ARC • Retain and Release • Alloc and Dealloc • Nil 7
Categories EXTENDING WITHOUT • Add methods to a class without subclassing it • Gives ability to override or add functionality to classes blindly and with ease • @interface NSString (Utilities) • - (BOOL) isURL; • @end 8
View Layer STORYBOARDS, XIBS, OR ? • Storyboard • XIBs (NIBs) • IBOutlets • IBActions • (Show the people) 9
Lets Code Something WE’LL DO IT LIVE • (Heads to XCode) 10
Questions and Contact SLIDE THE OLD STANDARD FINAL • Q&A Session • @fernholz • derek@blendinteractive.com or fernholz@gmail.com • World Beer Tour App in iTunes App Store (shameless plug) 11

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Intro To iOS

  • 1. Intro to iOS Development A COMPREHENSIVE OVERVIEW Derek Fernholz Developer @fernholz derek@blendinteractive.com 1
  • 2. The Necessities STARTED WHAT YOU NEED TO GET • Mac (in our case, running Mac OS X 10.7 or higher) • XCode 4.5+ • iOS SDKs • Familiarity with or willingness to learn Object Oriented Programming 2
  • 3. Language - Objective-C LEARNING TO LOVE [ ] • The Objective-C language is a simple computer language designed to enable sophisticated object-oriented programming. • Knowing or having an understanding of C will help you understand this language • It is a C superset based and built on Smalltalk 3
  • 4. The IDE A ONE-STOP SHOP • (Live Demo / Walkthrough) 4
  • 5. Class Structure THE BASICS • Interface vs. Implementation • Instance vs. Class • Instance Variables, Properties, Setters & Getters, and Synthesizing 5
  • 6. Syntax YOU’LL GET USED TO IT • NSString *string = [NSString string] • [NSString stringWithFormat:[prefs format]]; • return [object name] (same as) return object.name • More as we dive into the code 6
  • 7. Memory Management WHY YOU’LL LOVE ARC • Retain and Release • Alloc and Dealloc • Nil 7
  • 8. Categories EXTENDING WITHOUT • Add methods to a class without subclassing it • Gives ability to override or add functionality to classes blindly and with ease • @interface NSString (Utilities) • - (BOOL) isURL; • @end 8
  • 9. View Layer STORYBOARDS, XIBS, OR ? • Storyboard • XIBs (NIBs) • IBOutlets • IBActions • (Show the people) 9
  • 10. Lets Code Something WE’LL DO IT LIVE • (Heads to XCode) 10
  • 11. Questions and Contact SLIDE THE OLD STANDARD FINAL • Q&A Session • @fernholz • derek@blendinteractive.com or fernholz@gmail.com • World Beer Tour App in iTunes App Store (shameless plug) 11

Editor's Notes