iphone app-introduction

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    Welcome to CS193P:iPhone Application Development

    Evan Doll [email protected] Cannistraro [email protected]

    Thursday, April 2, 2009

    mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]
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    Staff

    Lecturers! Evan Doll [email protected]

    ! Alan Cannistraro [email protected]

    Student TAs!Troy Brant [email protected]

    ! Paul Salzman [email protected]

    Professor Emeritus! Paul Marcos [email protected]

    Thursday, April 2, 2009

    mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]
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    How many of you...

    Are familiar with object-oriented programming?

    Have developed software with Mac OS X?

    Have developed apps for the iPhone?

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    Requirements

    Prerequisite: CS 106B/X

    Recommended Book: None, well use Apple documentation

    You must have access to an Intel-based Macintosh! Running Mac OS X 10.5 Leopard

    !

    iPhone SDK(Not available on cluster computers!) Owning an iPhone or iPod Touch is not required

    ! Assignments may be done with the iPhone Simulator

    ! Loaner iPod Touches should be available, more details to come

    Thursday, April 2, 2009

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    Enrollment

    Response has been phenomenal again this quarter!! Enrollment limited to 60 students

    ! 40 graded, 20 Pass/No Credit

    ! Being signed up on Axess does not mean youre enrolled

    You MUST fill out a survey to be considered!! http://tinyurl.com/cs193p-spring09-survey! Required by noon tomorrow (April 2)

    ! Indicate whether youre willing to enroll P/NC

    Enrollment will be determined based on prior CS courses, otherrelevant experience, number of quarters remaining, major

    Non-enrolled may still attend lectures as auditors

    Thursday, April 2, 2009

    http://tinyurl.com/cs193p-spring09-surveyhttp://tinyurl.com/cs193p-spring09-surveyhttp://tinyurl.com/cs193p-spring09-survey
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    iPhone Developer University Program

    Stanford has joined the iPhone Developer University Program

    Free on-device development for students (normally $99)! Valid through the end of the quarter

    ! Invites will only be issued to @stanford.edu email addresses

    Youll need to click through a student agreement which youshould read

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    iPhone OS 3.0 Beta

    We wont be discussing the upcoming iPhone OS 3.0! Currently covered by an NDA

    Superset of iPhone OS 2.0 from a developer perspective

    Everything youll be learning this quarter will still be useful!

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    Expanding our classroom...CS193P will be available on iTunes U this quarter

    Thursday, April 2, 2009

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    CS193P on iTunes U

    For viewers on iTunes U...! Welcome to Stanford!

    ! Feedback and suggestions are welcome

    ! We cant answer individual questions via email

    ! Visit http://devforums.apple.com

    Thursday, April 2, 2009

    http://devforums.apple.com/http://devforums.apple.com/
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    Getting More Info

    Email! [email protected]

    ! Questions from enrolled students only, please!

    Course web site! http://cs193p.stanford.edu

    Other web sites! iPhone Dev Center: http://developer.apple.com/iphone

    ! Developer Forums: http://devforums.apple.com

    Thursday, April 2, 2009

    http://devforums.apple.com/http://developer.apple.com/iphonehttp://cs193p.stanford.edu/http://cs193p.stanford.edu/mailto:[email protected]:[email protected]://devforums.apple.com/http://devforums.apple.com/http://developer.apple.com/iphonehttp://developer.apple.com/iphone
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    Why Are We Here?

    Thursday, April 2, 2009

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    Why Are We Here?

    To build iPhone & iPod touch applicationsusing Cocoa Touch

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    Cocoa Touch & iPhone SDK

    Based on Cocoa! Mature, polished, highly consistent APIs

    Provides a very rich starting point for exploring app design

    Shows real-world implementations of OO design patterns

    Designs learned on iPhone translate directly to Mac OS X

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    What Well Cover This Quarter

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    Xcode Interface BuilderTools

    Language(& Runtime)

    Objective-C

    [textView setStringValue: @Hello];

    Frameworks

    Foundation UIKit

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    Why Objective-C?

    Exposure to other languages is always good

    ObjC is a language focused on simplicity and the elegance ofobject oriented design! Based on ANSI C

    ! Brings many object oriented principles, but with a minimal

    amount of syntax

    A data point to compare with designs of C, C++, Java andother languages

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    Applications You Will Build

    HelloStanford & Obj-C Tool

    HelloPoly - 2 weeks

    Presence - 4 weeks

    Final Project (your choice) - 3 weeks

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    Assignments, Grading & Late Policy

    7 weekly assignments

    Final project of your choice! End of quarter demos at Apple...

    Grading: Nice & simple: #,#+ and #-

    Late Policy: 3 late days, use them wisely!

    Thursday, April 2, 2009

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    Presence

    The Hello World of iPhone applications...! A client

    Build a fully functional application from scratch over 4 weeks

    Each assignment builds on the previous one

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    What Well Cover

    Application design patterns

    View controllers

    Displaying data!Table views

    Dealing with local & remote data! Property lists, SQLite, web services

    Text input

    Multithreading

    Address Book and other system integration

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    Final Projects

    Last 3 weeks of the course

    By yourself or with a partner

    Its never too early to think of something and propose it to us

    Categories to consider:! Student life apps

    ! Educational tools

    ! Games

    ! Social / location-aware software

    Something that you or your friends would actually like to use! Post it on the app store?

    ! http://www.stanfordiphoneclassapps.com

    Thursday, April 2, 2009

    http://www.stanfordiphoneclassapps.com/http://www.stanfordiphoneclassapps.com/http://www.stanfordiphoneclassapps.com/
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    iPhone OS Overview

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    iPhone

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    Mac OS X

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    Media

    Core Services

    Core OS

    Cocoa

    Mac OS X

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    Media

    Core Services

    Core OS

    Cocoa Touch

    iPhone OS

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    Core Services

    Collections Core Location

    Address Book Net Services

    Networking Threading

    File Access Preferences

    SQLite URL utilities

    Media

    Core Services

    Core OS

    Cocoa Touch

    iPhone OS

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    Media

    Core Audio JPG, PNG, TIFF

    OpenAL PDF

    Audio Mixing Quartz (2D)

    Audio Recording Core Animation

    Video Playback OpenGL ES

    Media

    Core Services

    Core OS

    Cocoa Touch

    iPhone OS

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    Cocoa Touch

    Multi-Touch Events Alerts

    Multi-Touch Controls Web Views

    Accelerometer People Picker

    View Hierarchy Image Picker

    Localization Controllers

    Media

    Core Services

    Core OS

    Cocoa Touch

    iPhone OS

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    Xcode Interface BuilderTools

    Language(& Runtime)

    Objective-C

    [textView setStringValue: @Hello];

    Frameworks

    Foundation UIKit

    Thursday, April 2, 2009

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    Cocoa Touch Architecture

    UIKit User interface elementsApplication runtimeEvent handling

    Hardware APIs

    Foundation Utility classesCollection classesObject wrappers for system services

    Subset of Foundation in Cocoa

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    Objects

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    Thing

    doSomething

    Behavior

    behavior

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    Thing

    doSomething

    Message

    "doSomething"

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    Thing

    flag

    count

    doSomething

    State

    state

    behavior

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    Thing

    flag

    count

    doSomething

    Other Objects As State

    helper

    state

    doSomethingElse

    Other Thing

    performDifficultTask

    behavior

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    Controller

    slider

    label

    updateLabel

    Outlets

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    Controller

    slider

    label

    updateLabel

    Target / Action

    targetaction !updateLabel"

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    Demo

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    What did we just see?

    Keep application logic separate from interface elements

    Outlets connect controllers to views

    Use target/action to customize behavior! Dont require subclassing

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    Questions?