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Welcome to CS193PiPhone Application Development
Evan Dolledoll@stanford.edu
Paul Marcospmarcos@stanford.edu
1Tuesday, September 23, 2008
Introductions
• Lecturers■ Paul Marcos <pmarcos@stanford.edu>■ Evan Doll <edoll@stanford.edu>
• Student TAs■ Troy Brant <troyb@stanford.edu>■ Kayvon Beykpour <beykpour@stanford.edu>
• Industry “TAs”■ Adam Nash <smashman@stanford.edu>■ Joe Bernstein <joe@terriblyclever.com>
2Tuesday, September 23, 2008
Quick Survey• Have worked with Java or C++?• Have an Intel-based Macintosh?• Have done Mac OS X development?• Have installed the iPhone SDK and done iPhone
development?
3Tuesday, September 23, 2008
Logistics• Lectures: Packard 101
Tues & Thurs 12:50 - 2:05 PM• Prerequisite: CS 106B/X• Recommended Book: None, we’ll use Apple documentation• Required Hardware:
■ You must have access to an Intel-based Macintosh
• Required Software: ■ Mac OS X 10.5.4 Leopard (or later)■ iPhone SDK
• iPhone SDK is not currently available on cluster computers
4Tuesday, September 23, 2008
Office Hours & Web Site• Office hours
■ TBD, will be posted on web site and via email
• Email■ cs193p@cs.stanford.edu
• Web site■ http://cs193p.stanford.edu■ Access restricted to some materials
5Tuesday, September 23, 2008
Enrollment• Response has been phenomenal!• Enrollment limited to 50 students• You MUST fill out a survey to be considered
■ http://tinyurl.com/CS193P■ Need to be completed by noon tomorrow (8/24)
• Priority will be given as follows:■ completed CS106B/X and 108 (or equiv. industry experience)■ prior C and OOP experience■ students close to graduating■ CS majors
• If you don’t get enrolled, you are welcome to audit■ You must inform us that you’re auditing
6Tuesday, September 23, 2008
Why Are We Here?
To build iPhone & iPod touch applications using Cocoa Touch
7Tuesday, September 23, 2008
Why Are We Here?• 193P is not just about the iPhone, Cocoa Touch or ObjC• It’s about Software Engineering, as well as object oriented
architecture and design• Exposure to problems and solutions that you might not see in
other classes
8Tuesday, September 23, 2008
Stanford iPhone Pilot• Applications by Stanford students for Stanford students• Project information:
■ http://studentapps.stanford.edu/iapps.html
• Details on the current applications■ http://stanford.terriblyclever.com
• Contact Joe and Kayvon for more details about the program• Keep in mind for final projects
9Tuesday, September 23, 2008
Cocoa Touch & iPhone SDK• The Good
■ Based on Cocoa which is mature, well thought out with 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
• The Bad■ 1.0 version of SDK, bound to be some rough edges■ Exploring new territory with classroom device development
• The Ugly■ iPhone developer agreement
10Tuesday, September 23, 2008
Buzz about the class• Bloggers asked, “How can they teach the class with Apple’s
NDA?”
“Basically, it's like Fight Club.
Once you enroll in the iPhone developer program, you're not allowed to talk about the developer program, the SDK, or pretty much anything until Apple says it's OK.”
11Tuesday, September 23, 2008
iPhone Developer University Program• Some materials for the class still covered by confidentiality
clause■ Existing iPhone developer program restricts who developers can
talk to about SDK details■ University program allows schools to create teams of students
who can talk to each other, exchange applications, etc.
• Students will be “invited” to join our CS193P team■ Accepting invitation includes agreeing to honor these terms
• Once accepted, you can download the SDK…and we can talk
12Tuesday, September 23, 2008
R STUDENTS STRONGLY CAUTIONED
SOME MATERIAL MAY BE INAPPROPRIATE FOR STUDENTS WHO HAVE NOT ACCEPTED THE UNIVERSITY AGREEMENT
For brief exposure to confidential API and details about iPhone OS. Do not discuss with anyone not enrolled in this class.
THIS CLASS HAS BEEN RATED
13Tuesday, September 23, 2008
Things We’ll Cover
14Tuesday, September 23, 2008
Xcode Interface BuilderTools
Language (& Runtime) Objective-C
[textView setStringValue: @“Hello”];
Frameworks
Foundation UIKit
15Tuesday, September 23, 2008
Why Objective-C?• Exposure to other languages is always good• ObjC is a language focused on simplicity and the elegance of
OO 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++ and Java
16Tuesday, September 23, 2008
Applications You Will Build
HelloStanford & Obj-C Tool
HelloPoly - 2 weeks
Presence - 4 weeks
Final Project (your choice) - 3 weeks
17Tuesday, September 23, 2008
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!
18Tuesday, September 23, 2008
First Assignment• First assignment handed out today, 2 parts• Intended to get you situated with tools and start off with Obj-C• Includes a comprehensive walkthrough• We suggest trying to do Assignment 1A before Thursday to
help work out any tools or installation issues
19Tuesday, September 23, 2008
Second Assignment: Presence• Build a fully functional application from scratch over 4 weeks• Each assignment builds on the previous one
■ Don’t fall behind!
• Covers a wide variety of topics in the UIKit framework...
20Tuesday, September 23, 2008
PresenceBird’s Eye View
21Tuesday, September 23, 2008
What We’ll Cover• Application design patterns• View controllers• Presenting data
■ Table views
• Loading & saving data■ Property lists, SQLite, web services
• Text input• Performance tuning• Address Book and other system integration• More...? Suggestions welcome!
22Tuesday, September 23, 2008
Final Projects• 3 weeks to work on them• Application of your choice• It’s 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
• Find a project that you or your friends would actually like to use!
• Post it on the app store?
23Tuesday, September 23, 2008
Questions?
24Tuesday, September 23, 2008
iPhone OS Overview
25Tuesday, September 23, 2008
Media
Core Services
Core OS
Cocoa
Touch
Mac OS X
iPhone OS
iPhone
26Tuesday, September 23, 2008
Core Services
Collections Core Location
Address Book Net Services
Networking Threading
File Access Preferences
SQLite URL utilities
Media
Core Audio JPG, PNG, TIFF
OpenAL PDF
Audio Mixing Quartz (2D)
Audio Recording Core Animation
Video Playback OpenGL ES
Cocoa Touch
Multi-Touch Events Alerts
Multi-Touch Controls Web View
Accelerometer People Picker
View Hierarchy Image Picker
Localization Camera
Media
Core Services
Core OS
Cocoa Touch
iPhone OSCore OS
OS X Kernel Power Mgmt
Mach 3.0 Keychain
BSD Certificates
Sockets File System
Security Bonjour
27Tuesday, September 23, 2008
Xcode Interface BuilderTools
Language (& Runtime) Objective-C
[textView setStringValue: @“Hello”];
Frameworks
Foundation UIKit
28Tuesday, September 23, 2008
Cocoa Touch Architecture
Cocoa Touch
UIKit User interface elementsApplication runtimeEvent handlingHardware APIs
Foundation Utility classesCollection classesObject wrappers for system servicesSubset of Foundation in Cocoa
29Tuesday, September 23, 2008
Objects
30Tuesday, September 23, 2008
Thing
Object
31Tuesday, September 23, 2008
Thing
doSomething
Behavior
behavior
32Tuesday, September 23, 2008
Thing
doSomething
Message
"doSomething"
33Tuesday, September 23, 2008
Thingflagcount
doSomething
State
state
behavior
34Tuesday, September 23, 2008
Thingflagcount
doSomething
Other Objects As State
helperstate
doSomethingElse
Other Thing
performDifficultTask
behavior
35Tuesday, September 23, 2008
Controllersliderlabel
updateLabel
Outlets Need to decide what the demo would be and update slide to appropriate material.
- text field / slider?
- color tabs?
Need to decide what the demo would be and update slide to appropriate material.
- text field / slider?
- color tabs?
36Tuesday, September 23, 2008
Controllersliderlabel
updateLabel
Target / Action
targetaction ʻupdateLabelʼ
37Tuesday, September 23, 2008
Demo
38Tuesday, September 23, 2008
Outlets
Controllersliderlabel
updateLabel
39Tuesday, September 23, 2008
Target / Action
Controllersliderlabel
updateLabel
targetaction ʻupdateLabelʼ
40Tuesday, September 23, 2008
Questions?
41Tuesday, September 23, 2008
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