iOS Development

A slide I presented yesterday on Offline Class of Jasakom - one of a biggest hacker community in Indonesia. This slide is quite similar with my previous slide (http://speakerdeck.com/u/andri/p/introduction-to-ios-development) but with more and updated content.

Transcript

1. Andri Yadi President, ID-ObjC | CEO, DyCode @andri_yadi | a (at) dycode (dot) com http://andriyadi.me Introduction to iOS Development O ine Class Jasakomer (Special iOS), April 15, 2012
2. about me
3. The rst & largest iOS & OSX developer community in Indonesia ID-ObjectiveC President
4. 4 years in a row
5. 2011 - now
6. start a company & code for food 9 years in mobile development
7. a movie freak
8. iOS Devices
10. 21 Start developing iOS apps Today!
11. http://developer.apple.com/ios
12. Xcode iOS Simulator iOS Developer Library
13. Required Stu s
15. Latest iOS SDK
16. 27 Installing Tools
17. Optional Stu s
18. Actual iOS devices
19. For debugging to device & deployment to AppStore
20. Some development stuffs
21. Objective-C C + OOP ≠ C++
22. A superset of C: • Syntactical convention for de ning classes & method • Syntax for method invocation • Syntax for declaring & synthesizing properties • Static & dynamic typing • Blocks • Extension: protocol & categories Objective-C Advantages: • Dynamic typing: enables to determine the class of an object at runtime • Dynamic binding: allows to determine the method to call at runtime instead of at compile-time • Dynamic loading: allows to add modules of code & other resources at runtime.
23. Classes & Objects
24. Methods & Messaging [aMutableArray insertObject:anObject atIndex:0]; [[self aMutableArray] insertObject:anObject atIndex:0]; [self.aMutableArray insertObject:anObject atIndex:0];
25. Blocks int result = myBlock(4);
26. Protocols & Categories @interface NowPlayingController : UIViewController<UIScrollViewDelegate, ProfileViewDelegate> { } @end Protocol == Interface in other OOP language (Java, C#) @protocol ProfileViewDelegate - (void)profileView:(ProfileView *)profileView doSignInWith: (AuthProviderType)signInType sender:(id)sender; @optional - (void)profileView:(ProfileView *)profileView doSignOut:(id)sender; @end Category, enables to extend a class without subclassing it @interface NSDate (Additions) + (NSDate *)dateFromTimeString:(NSString*)timeString; + (NSDate *)dateWithJSONString:(NSString *)json; - (NSDate *)dateByAddingDays:(NSInteger)numDays; - (NSDate *)dateByAddingHours:(NSInteger)numHours; @end
27. More details: http://bit.ly/AF8EiJ
28. Design Pattern
29. Model-View-Controller design pattern
30. Model-View-Controller design pattern NowPlayingController NowPlayingView NowPlaying
32. Reference counting No garbage collector support (yet) Autorelease Pool Memory Management
33. iOS frameworks
35. Enable apps to store user documents and key value data Storage Push changes to all user’s computers and devices
36. Easily integrate Tweet Sheet Access system-wide Twitter account from within app Wrap OAuth request & response
37. Memory management becomes compiler’s job Manually enabled in Xcode It’s NOT a garbage collector! Automatic Reference Counting (ARC) No need to deal with retain & release by yourself
38. Layout the app’s work ow & design user interfaces Can be loaded dynamically Storyboard Specify transitions & segues between views
39. Image processing framework nally comes to iOS Advanced features: red-eye reduction, face recognition CoreImage Provides built-in lters: color e ect, distortions, transitions
40. Take advantage of the latest hardware Apple-developed OpenGL ES extensions GLKit: new high-level framework
41. Cocoa Touch Foundation, UIKit, Multi-Touch Gestures
42. Graphics Core Graphics, Core Animation, Core Image, Core Text, OpenGL ES
43. CoreData Database, Object-Relational Mapping, optimized for mobile - > 1 million objects store
44. Audio & Video Media player, Core Audio & OpenAL, iPod library, HTTP Live Streaming
45. Networking Bonjour, Peer to peer, WebKit framework, BSD socket
46. Core Location & MapKit
47. Multitasking New kind of multitasking
48. External display support
49. AirPrint Wireless printing to AirPrint-enabled printers. Hack available
50. Push & Local Notification
51. Game Center Social gaming platform
52. iAd Integrated advertising platform
53. In-App Purchase Payment inside applications
54. Human Interface Design
55. GUI Elements http://www.teehanlax.com/downloads/iOS_5_GUI_iPhone4S.psd.zip
56. Storyboard
57. The app will look like these
58. App Store Submission
59. Finally, on the App Store
60. you app can use this badge!
61. Everything is here: http://developer.apple.com/ios
62. https://developer.apple.com/library/ios/#referencelibrary/ GettingStarted/RoadMapiOS/Introduction/Introduction.html
63. Let’s see some code
64. DYCODE IS HIRING!
65. If you think you’re awesome, either mobile developer guru or still early learner, send your awesome CV to: hrd@dycode.com