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Absolute Beginners Guide to iPhone dev

Absolute Beginners Guide to iPhone dev



Slides for presentation given by Barry Ezell to the Suncoast iPhone App Developer's Meetup for August 2000.

Slides for presentation given by Barry Ezell to the Suncoast iPhone App Developer's Meetup for August 2000.



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    Absolute Beginners Guide to iPhone dev Absolute Beginners Guide to iPhone dev Presentation Transcript

    • Absolute beginners guide to... iPhone Development Barry Ezell
    • Technology Unconference USF College of Business September 26th - Dev Day September 27th - Media Day http://barcamptampabay.com
    • • Intro to the Intro • What you need: Hardware • What you need: Software • What you need: Wetware • Code! • Submit
    • All about me • Ruby, C#, Erlang • iPhone beginning 3/2009 • One app in store (SuccessIts) • One submitted (Bookmark, bookmarkapp.com) • Several in works
    • You don’t have to be a fanboy • Accelerometer, camera, video, magnetometer, iPod, touch, OpenGL • Over 37M units sold (4/2009) • Over 1.5B app downloads • $2.4B a year in sales
    • Pros • Controlled, predictable platform • 320x480 px • Good documentation • Apple handles sales
    • Cons • All Apple all the time • Their hardware • They approve / reject apps • No alternative app store • You can use any language as long as it’s Objective-C
    • WYN: Hardware • Intel-based Mac running Leopard or S.L. • iPhone / iPod Touch
    • WYN: Software
    • XCode et al. • XCode 3.x and Instruments on install disk under “Optional Installs” • Download iPhone SDK, simulator from Apple (after joining dev program) • All free
    • Registered iPhone Developer Program http://developer.apple.com/iphone/ Free Test using the simulator, no sales Test on devices, unlimited sales in Standard ($99/yr) App Store Unlimited in-house distribution, no Enterprise ($299/yr) App Store sales
    • WYN: Wetware • Learn Objective-C • Learn Cocoa Touch, Frameworks
    • Objective-C Square brackets represent!
    • • OO, strict superset of C, inspired by Smalltalk messaging • Any valid C or C++ code works • You handle memory management • [object retain]; • [object release];
    • Messaging • Objects are passed messages with descriptive arguments coyote.hunt(roadRunner,rocketSkates,true);
    • Resources • Apple’s Object-Oriented Programming with Objective-C http://bit.ly/13QlgA • Peepcode screencast series: Objective-C for Rubyists • Programming in Objective-C 2.0 by Stephen G. Kochan
    • Cocoa Touch • Desktop Cocoa adapted for the iPhone • Frameworks: • UIKit (touch, windowing, accelerometer) • CoreGraphics (Quartz, PDF, animation) • CoreLocation (GPS) • MediaPlayer (iPod) • Many more
    • Resources • Pragmatic Programmer: iPhone SDK Development by Bill Dudney • iPhone Developer’s Cookbook by Erica Sadun • Interwebs: iphonedevsdk.com, Apple forums, Google
    • Let’s Code • Finally! • TweetCount • XCode > New Project > Utility Application
    • One Window, many Views UITableView
    • One Window, many Views UIButton UIImageView UIProgressView UILabel
    • .nib or .xib files • Normally both called “nibs” • “Freeze-dried” objects, interface elements, and relationsips • Normally single .xib launched at app start
    • IBOutlet & IBAction • IBOutlets allow getting and setting properties on objects in IB • IBActions allow objects to receive events like touches or value changes
    • Test on Devices • Simulator != iPhone • Get Provisioning Profiles and Development Certificates on iPhone Dev Portal • Make life easier with wildcard naming: com.barryezell.*
    • Device Testing • Configure app for device testing • Change Active SDK to “Device” • Set Signing Identity under Project > Edit Project Settings • Set your App ID in info.plist file
    • Submit to Apple • Set Release configuration • Set App Store Signing Identity • Add artwork (57x57, 512x512 icons) • Compile and zip with 57x57 icon
    • Upload to iTunes Connect
    • Tips while waiting on Apple • Avoid cracks in sidewalk • Ditto walking under ladders • Try to forget you ever invested all that time
    • Resource of Resources • http://theappleblog.com/2009/06/01/43- iphone-development-resources