MultiUni - IT110 iPhoneDev - Day 0: Overview

Day 0 - Overview from A-Z MultiUni-IT110 - Intro to iPhone App Programming Huy @ multinc.com

Warning ! This presentation may contain information on unethical activities, possibly illegal in certain jurisdictions. Listen & act at your own risk.

Note about Demos This presentation makes signiﬁcant use of live demos, which are not included in the slides.

Why iPhone?

Why iPhone? Global opportunity

Why iPhone? Global opportunity Few coders in Vietnam

Why iPhone? Global opportunity Few coders in Vietnam iPhone is a leader of the mobile future

Outline Part 1 - getting ready Part 2 - designing Part 3 - coding Part 4 - releasing

Get ready Part 1

Which dev device? iPhone iPhone iPhone iPod 3GS 3G 2G Touch App Store, multitouch, Yes Yes Yes Yes accelerometer cellular data, Yes Yes Yes camera GPS, 3G data Yes Yes video, autofocus, compass, more Yes speed & RAM

Getting a dev device

Getting a dev device Choices: 1. iPhone 3GS ($589 new in US) 2.iPhone 3G/2G (3G $300 on US craigslist) 3.iPod Touch (about $160 on US craigslist) 4.iPhone Simulator (free)

Getting a dev device Choices: 1. iPhone 3GS ($589 new in US) 2.iPhone 3G/2G (3G $300 on US craigslist) 3.iPod Touch (about $160 on US craigslist) 4.iPhone Simulator (free) Alternative: test at MultiNC in Q.1 (free++)

Apple restrictions Phone: any carrier Unlocked iPhone or iTouch Any web apps iPhone or iTouch App Store apps iPhone or iTouch Any apps Jailbroken iPhone or iTouch

Shhh... jailbreaking device PRO: required for software unlock PRO: install any app PRO: dev tools PRO: access to private APIs CON: have to wait for updates http://iphone-dev.org

SDK requirements Choice of computer: 1. Mac CON: expensive 2.PC with “Hackintosh”, “OSX86” CON: time-consuming, maybe not possible, not legal Alternative: open-source toolchain

Mac Macbook 2.4GHz is ﬁne - $800 on US craigslist Mac Mini 2GHz should be ﬁne - $500? on US craigslist 4GB of RAM is cheap Speed bottleneck is not building -- it’s transferring to device

Hackintossshhh...

Hackintossshhh... New PC Choose carefully http://osx86.org

Hackintossshhh... New PC Choose carefully http://osx86.org Existing PC Desktop - may need to buy video card Notebook - may need to buy Wi-Fi, maybe not possible AMD - forget it

Learning to code Lots of books Apple’s extensive documentation Stanford CS193p course -> Google [stanford iphone] Upcoming MultiUni courses http://multiuni.org

iPhone Dev Program Why? To test on non-jailbroken devices To release to App Store How much? $99 per year Workarounds? Test/deploy on jailbroken devices Share certs with other coders

DEMO: iPhone Dev Program

Design Part 2

Why design? To sell more To avoid rejection from the App Store

Design Resources Guides Apple’s Human Interface Guidelines (HIG) Stencils http://theresaneil.wordpress.com/2009/09/16/iphone3g- design-resources/

Design Worﬂow Common: TapTapTap’s process: Iterate UI design with a graphic designer http://www.taptaptap.com/blog/the-design-session/ If remote, use Skitch

Design Process Iterate: DEMO: Convert design evolution http://www.taptaptap.com/blog/convert-design- evolution/

Type of app

Type of app Web app PRO: no approval needed CON: requires net, slower response, no games

Type of app Web app PRO: no approval needed CON: requires net, slower response, no games Native app App Store vs. jailbroken more later during Release part...

Code Part 3

Web App Toolkits DEMO: jQTouch http://www.jqtouch.com/ iui The rest of this talk is about native apps

Languages & Tools Objective-C -> XCode Alternatives: Javascript/HTML -> Appcelerator Titanium, PhoneGap, Ansca Corona (good for games) careful, Apple hates Phonegap Ruby -> Rhodes Rhomobile .NET -> MonoTouch others...

Objective-C Superset of C, can be mixed with C, C++ Distinctions Message-passing for method calls Alloc/release/autorealease Categories

Set up Xcode DEMO Files, targets, conﬁgurations Layered settings: project vs. target GCC Set up warnings Subversion (but consider Git)

Interface Builder Not required, can be done programatically But rapid prototyping of views DEMO

Code structure DEMO of simple app

iPhone Simulator iPhone Simulator Missing: location, many preferences, multi-touch (has pinch) iSimulate Multi-touch Accelerometer Location/GPS

Coding style Apple’s coding guidelines for Cocoa Google’s Objective-C Style Guide

Debugging NSLog UIAlertView NOTE: popups are stacked Debugger DEMO NSZombieEnabled

Running static analyzer Choices: Download LLVM/CLang Static Analyzer Bundled in Xcode 3.2 (OS X 10.6) DEMO

Running Xcode Leaks DEMO

Deploying for testing Distribution choices: a) collect devices’ UDIDs & distribute Ad Hoc b)share your certiﬁcates c) jailbroken phones don’t require signing IMPORTANT: keep copy of .dSYM ﬁles

Beta testing Collect console logs using iPhone Configuration Utility Collect console logs and user data using Flurry or others Collect crash logs from users Users need to sync and find files on Mac Analyze using symbolicate and .dSYM files

Release Part 4

Release to App Store PRO: Easier access, greater exposure PRO: Apple handles billing, gives you 70% CON: infamous App Store approval process (weeks or months, possibly never)

Release to Cydia Store (jailbroken devices) PRO: No approval needed PRO: Unique markets, especially Vietnam PRO: Access to more functionality CON: Smaller market, exposure

App Store rejection examples

App Store rejection examples Bugs

App Store rejection examples Bugs Private APIs

App Store rejection examples Bugs Private APIs Downloaded code

App Store rejection examples Bugs Private APIs Downloaded code Non-working test account

App Store rejection examples Bad design (e.g. deselected tableview); re- using system icons; connectivity handling; feature-limited

App Store rejection examples Bad design (e.g. deselected tableview); re- using system icons; connectivity handling; feature-limited Excess vibration, bandwidth

App Store rejection examples Bad design (e.g. deselected tableview); re- using system icons; connectivity handling; feature-limited Excess vibration, bandwidth Uploading user data without warning

App Store rejection examples Bad design (e.g. deselected tableview); re- using system icons; connectivity handling; feature-limited Excess vibration, bandwidth Uploading user data without warning But exceptions: “Don’t ask, don’t tell”

App Store rejection examples Objectional content, e.g. Me So Holy, Baby Shaker, StarTime, Eucalyptus, Ninjawords, NIN

App Store rejection examples Objectional content, e.g. Me So Holy, Baby Shaker, StarTime, Eucalyptus, Ninjawords, NIN Competing with Apple & carriers, e.g. Google Voice & Skype

App Store rejection examples Objectional content, e.g. Me So Holy, Baby Shaker, StarTime, Eucalyptus, Ninjawords, NIN Competing with Apple & carriers, e.g. Google Voice & Skype Trademark, e.g. iPhone icon & name, Polaroid

App Store rejection examples Objectional content, e.g. Me So Holy, Baby Shaker, StarTime, Eucalyptus, Ninjawords, NIN Competing with Apple & carriers, e.g. Google Voice & Skype Trademark, e.g. iPhone icon & name, Polaroid Icons that match, icons that don’t match

App Store rejection examples Objectional content, e.g. Me So Holy, Baby Shaker, StarTime, Eucalyptus, Ninjawords, NIN Competing with Apple & carriers, e.g. Google Voice & Skype Trademark, e.g. iPhone icon & name, Polaroid Icons that match, icons that don’t match Bad descriptions (“dragons”, competitor

Marketing App Store ranking Online reviews, Public Relations Video demos, using iSimulate Word-of-mouth Excellence -> Apple featured, marketing Free “lite” version Pricing strategy Appirater?

TapTapTap’s advertising of “Where To”

What kind of apps? Utility, productivity Business? Careful because ofﬁcially not allowed Casual games, e.g. Pee monkey Arcade games, e.g. Meteor Blitz DEMO: Meteor Blitz video demo See more examples at www.uquery.com

What now?

Homework Try to get a Mac/Hackintosh. For Hackintosh 1. Backup all your data and partition tables (e.g. using True Image, Ghost) 2.Go to www.osx86project.org Download the SDK developer.apple.com/iphone

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MultiUni - IT110 iPhoneDev - Day 0: Overview

by MultiUni on Oct 11, 2009

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MultiUni - IT110 iPhoneDev - Day 0: Overview — Presentation Transcript