Life Cycle of an iPhone App

Life-cycle of an iPhone appJohn McKerrell

My ExperienceDeveloping professionally for the web for over 10 yearsHave been developing for iOS for over 2 yearsHave had 50 apps available on the store

“...remember the idea,not the man...” *Think of something uniqueThink of something usefulThink of something fun *EVEY HAMMOND, V FOR VENDETTA

“... but you cannot kiss an idea,cannot touch it, or hold it ...” *Remember an idea is worth nothing until it’simplementedhttp://dave.is/businesspeople.html“the execution and delivery are what’s key” -Sergey Brin *EVEY HAMMOND, V FOR VENDETTA

An IdeaBuild an iPhone app forSocial Media Cafe

Research Similar Apps

Brainstorm Features

Aggregate ThoughtsList of Talks Photos from eventsDescription of talk Hashtag resultsActions for talk, e.g Facebook & Twittervideo, slides sharingInformation aboutevents

PrioritiseVersion 1 Future Versions List of Talks Information about events Description of talk Photos from events Actions for talk, e.g video, slides Hashtag results Facebook & Twitter sharing

Make Lists

Before you start buildingThings you will need to build an app A Mac Xcode and iOS SDK (optional) An iPhone, iPad or iPod Touch (optional) iOS Developer Program membership

Before you startdesigningiOS Human Interface GuidelinesHIG provides instructions for common scenariosGoes into detail on how best to create graphicsfor use in appGives a set of rules that iOS apps must adhere to

Before you startcodingiOS Application Programming GuideiOS Development GuideAgain gives instructions for common scenariosGives some information on best ways to buildappsDefines rules that iOS apps must adhere to

DesignBest to either stick with Apple’s UI or choosesomething completely different, tend not to mix wellLook at other apps, steal learn from their successesand mistakesFree resources are available, icon sets, Photoshoplayouts and more.http://glyphish.com/http://www.teehanlax.com/blog/2010/08/12/iphone-4-gui-psd-retina-display/

Example: FacebookMostly uses iOS UI, oriOS inspired elementsColours and graphicsfrom branding

Example: Balloons!Custom designedgraphics throughoutStill makes use ofstandard UI elementssuch as buttons andtext boxes

Example: Angry BirdsGames tend to usemore innovative andbespoke UI

CodingUse a modular approachEspecially on this iPhone this is easier becauseeach screen of information will be based on aseparate “ViewController” that can be re-usedCustom views within the screen can also bebroken out into reusable codeWhole apps can be template-able and reused

CodingLots of existing Open Source code you can use Three20 basis for the Facebook app Tapku popular Coverflow implementation & morehttp://blog.proculo.de/archives/183-Useful-iOS-Libraries-and-Classes.html

HierarchyAppExisting codebasebuilt by me in June2010Provides an interfaceonto a collection ofitems with similar UIto the iPod appCan be configuredwith simple settings

HierarchyAppProvides a very basicitem detail screenEither list of propertiesor displaying anembedded HTML fileExpectation is thiswould be customisedfor each app

7digital.comCan be customised tocreate complicatedappsCustom lists withmore interestingelementsCustom item detail,e.g. song player

SMC Liverpool AppBuilt on top ofHierarchyAppUpdates content frominternet on startup

SMC Liverpool AppShows list of talksTalks are categorisedin multiple ways

SMC Liverpool AppCan drill downthrough multiple filtersto find relevant talks

SMC Liverpool AppFor each talk appprovides an overviewof the talk and a briefbio of the speaker

SMC Liverpool AppVarious actions areoffered, all defined inthe simple datafiles

SMC Liverpool AppLinks open inembedded webbrowserFurther actionsavailable to the userincluding opening linkin Safari

build build build_

ﬁnished!

ﬁnished!... what’s next?

Getting onto devicesYou did sign up to the iOS Developer Programdidn’t you?

Getting onto devicesCollect UDIDs

Getting onto devicesGenerate Development & Distribution certificatesInstall from Xcode directly onto your own device,allows debugging while the app is runningAd-hoc installation allows you to email to otherpeople and let them install via iTunesLimited to 100 devices per account, per year

Getting onto theApp StoreGenerate App Store provisioning profileLog into iTunes Connect and create an entry forthe appEnter Name, Description, Keywords, etc.Keywords can only be entered while submitting anew version of an app, everything else can beedited any time

Getting onto theApp StoreSubmission now quite easy, in Xcode: Build & Archive -> Submit... unless your app has a space in the name, e.g.“Chess Viewer”, “Maths GCSE”, “Driving Test” In this case zip the .app file, remove space from filename, use Application Loader to submit

wait 7-10 days

Market your app

Apple Approves

Track your downloads

ChartYourSuccess

Make Money!Apple take a 30% cut in the US but 40% in mostother countries including EU & UK

Make Money!

Social Media CafeLiverpool iPhone App

Social Media CafeLiverpool iPhone App...is real...

Social Media CafeLiverpool iPhone App...is available...

Social Media CafeLiverpool iPhone AppNOW!!!http://is.gd/smclivapp

Could this get any better?

Open Source!Social Media Cafe Liverpool iPhone app is opensource, already available from here: https://github.com/johnmckerrell/smclivHierarchyApp is also open source, availablehere: https://github.com/johnmckerrell/ HierarchyApp

InternsI’m looking for interns for the summer Ruby on Rails iOS - iPhone & iPadLots of interesting projects to work on, shouldprovide lots of good experience

Available for workI can work for you john@mckerrell.net http://johnmckerrell.com/ @mcknut

Thank you

Life Cycle of an iPhone App

by John McKerrell on Feb 11, 2011

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