Intro to iPhone Development as presented at iPhone Camp Birmingham.

1. Intro to iPhone
Development
Andria Jensen
Co-Owner of Appsolute Genius
http://www.appsolutegenius.com
andria@appsolutegenius.com
@andriajensen
@appsolutegenius

2. Why ?!?
•over 35 million devices
•instant audience
•over $2.4B in sales each year
•Apple gives you all the tools to be
successful - you just have to use
them!

3. Because it’s fun
...and maybe you’ll make a little money

4. How do I start?
•Get an Intel-based Mac and iPhone
or iPod Touch
•Create a developer account
•Download the SDK & XCode

5. Ok..now what?
•Research
•Learn
•Start coding
•Seriously....just start coding!!

6. Learn what?
•Objective-C
•Model-View-Controller pattern
•Interface Builder
•NS Libraries
•Human Interface Guidelines (HIG)

7. Learn how?
•Read the documentation
•Look for tutorials online
•http://developer.apple.com/iphone
•Read a book
•Ask questions!!

8. Objective-C
•superset of the C language
•can use C++ (but not recommended)
•no garbage collection

9. Square Brackets
•bracket syntax == [self doSomething]
•dot syntax == self.myProperty
•self.myProperty==[self myProperty]

10. Objective-C
•Arguments are denoted with colons
•May be named, but not required
- (void) drawBoxWithHeight:(float)height andWidth:(float)width;
- (void)viewDidLoad {
[self.navigationController setNavigationBarHidden:YES];
[self drawBoxWithHeight:5.0 andWidth:10.0];
[super viewDidLoad];
}

11. Objective-C
•Everything comes from NSObject
•@interface - class declaration
•@property
@interface User : NSObject {
NSString *name;
NSString *email;
NSString *phone;
}
@property (nonatomic, retain) NSString *name;
@property (nonatomic, retain) NSString *email;
@property (nonatomic, retain) NSString *phone;
@end

12. Model-View-Controller
How bout an MVC song???
http://www.youtube.com/watch?v=YYvOGPMLVDo

13. Interface Builder
•IBAction - links your functions to
your controls’ actions
•IBOutlet - links your properties to
controls in your interface

14. Views
•Everything is a UIView
•One window with multiple views
•Controls are subclassed views
•320x480

15. Hello World!
•Let’s see the demo already...
•You can see this in much more
step-by-step detail at:
http://developer.apple.com/iphone/library/documentation/
iPhone/Conceptual/iPhone101/Articles/00_Introduction.html

16. Questions?
• Contact me
• andria@appsolutegenius.com
• @andriajensen
• @appsolutegenius