Inheritance, Interfaces and Composition

A talk to on Inheritance, Interfaces and Composition for students in the course of iOS programming in Gdansk's Technical University in May 11th of 2016.

Transcript

1. Inheritance ,
 Interfaces and Composition Hector Zarate (@iOSCowboy)
2. Inheritance ,
 Interfaces and Composition Hector Zarate (@iOSCowboy)
3. Agenda 1. Inheritance 2. Protocols (Interfaces) 3.Composition
4. 1. Inheritance
5. > The big dinosaur from the Jurassic World movie, That one that chases the girl in high heels. Not the bad one. The one that is chill. , but pink!
6. Tyrannosaurus Rex
7. 1.Kingdom 2.Class 3.Order 4.Genera 5.Species Less specific
8. More specific 1.Kingdom 2.Class 3.Order 4.Genera 5.Species
9. Animal, Plants, Stuff 1.Kingdom 2.Class 3.Order 4.Genera 5.Species
10. Animal, Plants, Stuff Mammals, Birds, Amphibia, Fish, Insects… 1.Kingdom 2.Class 3.Order 4.Genera 5.Species
11. Animal, Plants, Stuff Mammals, Birds, Amphibia, Fish, Insects… Anthropomorphic, Fera, Jumenta… 1.Kingdom 2.Class 3.Order 4.Genera 5.Species
12. Animal, Plants, Stuff Mammals, Birds, Amphibia, Fish, Insects… Anthropomorphic, Fera, Jumenta… Felis 1.Kingdom 2.Class 3.Order 4.Genera 5.Species
13. Animal, Plants, Stuff Mammals, Birds, Amphibia, Fish, Insects… Anthropomorphic, Fera, Jumenta… Felis Tigris, Panther 1.Kingdom 2.Class 3.Order 4.Genera 5.Species
14. @interface AnimalKingdom - (void)move; - (void)ingest:(id)animalOrProduct; @end @interface MammalClass : AnimalKingdom @property (nonatomic) Organ *heart; @property (nonatomic) Organ *lung; -(void)drinkMilk; @end @interface FeraOrder : MammalClass @property (nonatomic) Organ *teeth; @end @interface FelisGenra : FeraOrder @property (nonatomic) Organ *tail; @end @interface TigrisSpecie : FelisGenra @end
15. Animal Quadruped Fera Tigris Tigris Inheritance is indicated by a solid line with an arrowhead pointing at the super class
16. NSObject UIResponder UIView UIControl UIButton
17. Animal, Plants, Stuff Mammal, Birds, Amphibia, Fish, Insects… Anthropomorphic, Fera, Jumenta… Felis Tigris, Panther 1.Kingdom 2.Class 3.Order 4.Genera 5.Species
18. Organization by Commonalties
19. Exercise 1: Inheritance 0 25 50 75 100 April May June July 0 25 50 75 100 April May June July 0 25 50 75 100 April May June July
20. 1. Spoti-Case Study:
 UI
22. GLUE (Global Language, Unified Experience)
23. Fonts Colors Metrics
33. UIKit GLUE.framework Radio Running Albums Shows
34. GLUE.framework
35. GLUE.framework / 1. Subclassing UIButton SPTActionButton UICollectionViewCell SPTTableBasedCollectionViewCell SPTCollectionViewCell
36. GLUE.framework / 2. Factories UIImage+SPTIcon.h UIImageView+SPTImageStyleMasking.h UILabel+SPTDefaultApperance.h
37. GLUE.framework / 3. Configuration Colors.json Metrics.json Fonts.json
38. GLUE.framework Colors.json SPTTheme.h
39. GLUE.framework
40. UIKit GLUE.framework Radio Running Albums Shows
41. Colors.json { "glueBlackColor": "000000", "glueGray25Color": "3E3E40", "glueGray55Color": "88898C", "glueGray80Color": "c6c7cc", "glueGray90Color": "DFE0E6", "glueWhiteColor": "ffffff", "glueGreenLightColor": "1ed760", "glueGreenColor": "1db954", "glueGreenDarkColor": "1da74d", }
42. Colors.json { "glueBlackColor": "000000", "glueGray25Color": "3E3E40", "glueGray55Color": "88898C", "glueGray80Color": "c6c7cc", "glueGray90Color": "DFE0E6", "glueWhiteColor": "ffffff", "glueGreenLightColor": "1ed760", "glueGreenColor": "c53770", "glueGreenDarkColor": "1da74d", }
44. 2. Interfaces
45. 1. A scientist or business person 2.good sense of humor 3.smart 4.very successful 5.good looking
47. 1. A scientist or business person 2.good sense of humor 3.smart 4.very successful 5.good looking
48. @protocol PerfectMan - (void)researchScience; - (void)doBusiness; - (void)crackJokes; - (void)beSmart; - (void)succeedInLife; - (void)lookAwesome; @end
49. Iron Man PerfectMan Batman Ellon Musk Realizing an interface is indicated by a dashed line with an arrowhead pointing at the interface
50. Iron Man PerfectMan Batman Ellon Musk CEO
51. Compliance with Specifications
52. APIs
53. Exercise 2: Protocols 0 25 50 75 100 April May June July 0 25 50 75 100 April May June July 0 25 50 75 100 April May June July
54. 2. Spoti-Case Study:
 Feature System
55. Radio Running Album Show Player Browse Artist Playlist Social Conce Car Chart scover Genre Ads Equalizer Inbox Podcast
56. Radio Running Album Show Player Browse Artist Playlist Social Conce Car Chart scover Genre Ads Equalizer Inbox Podcast
57. Radio Running Album Show Player Browse Artist Playlist Social Conce Car Chart scover Genre Ads Equalizer Inbox Podcast
58. Radio Running Album Show Player Browse Artist Playlist Social Conce Car Chart scover Genre Ads Equalizer Inbox Podcast
59. Radio Running Album Show Player Browse Artist Playlist Social Conce Car Chart scover Genre Ads Equalizer Inbox Podcast
60. Radio Running Album Show Player Browse Artist Playlist Social Conce Car Chart scover Genre Ads Equalizer Inbox Podcast
61. Radio Running Album Show Player Browse Artist Playlist Social Conce Car Chart scover Genre Ads Equalizer Inbox Podcast
62. 3. Composition
63. Engine Car >> Stereo
64. Engine Car >> Stereo Satellite Radio FM Radio
65. Hierarchy of Simpler Subsystems
66. Exercise 3: Composition 0 25 50 75 100 April May June July 0 25 50 75 100 April May June July 0 25 50 75 100 April May June July
67. 2. Spoti-Case Study:
 User Session
68. @interface SPTSession : NSObject @property (nonatomic, readonly) SPTProductState *productState; @property (nonatomic, readonly) SPTSocialManager *socialManager; @property (nonatomic, readonly) AdController *adController; @property (nonatomic, readonly) SPUser *currentUser; @property (nonatomic, readonly) SPPlaylist *inbox; @end
69. AdController SocialManager SPSession ProductState SPUser SPPlaylist
70. Dzjienki!
71. Questions? Hector Zarate @iOSCowboy spotify.com/jobs