Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
iOSDevUK 2015: Clean Code through Dependency In...
Search
AppFoundry
September 15, 2015
Programming
2
630
iOSDevUK 2015: Clean Code through Dependency Injection
This is a 5 minute fast-talk we gave at iOSDevUK 2015.
AppFoundry
September 15, 2015
Tweet
Share
More Decks by AppFoundry
See All by AppFoundry
Introductie iOS - Jens
appfoundrybe
0
88
Android In Practice
appfoundrybe
0
130
Android Introduction 3.0 by Siebe
appfoundrybe
0
110
Android in Practice (long)
appfoundrybe
0
200
React Native - cross-platform mobile app development
appfoundrybe
0
160
React Native Storybook
appfoundrybe
0
400
the ionic crash course
appfoundrybe
1
170
View based apps with Conductor
appfoundrybe
0
570
Android Accessibility at GDG Devfest Brussels 2016
appfoundrybe
0
460
Other Decks in Programming
See All in Programming
What’s New in Compose Multiplatform - A Live Tour (droidcon London 2024)
zsmb
1
480
みんなでプロポーザルを書いてみた
yuriko1211
0
280
Streams APIとTCPフロー制御 / Web Streams API and TCP flow control
tasshi
2
360
Realtime API 入門
riofujimon
0
150
Kaigi on Rails 2024 〜運営の裏側〜
krpk1900
1
250
ECS Service Connectのこれまでのアップデートと今後のRoadmapを見てみる
tkikuc
2
260
Contemporary Test Cases
maaretp
0
140
Jakarta EE meets AI
ivargrimstad
0
640
イベント駆動で成長して委員会
happymana
1
340
Jakarta EE meets AI
ivargrimstad
0
260
ペアーズにおけるAmazon Bedrockを⽤いた障害対応⽀援 ⽣成AIツールの導⼊事例 @ 20241115配信AWSウェビナー登壇
fukubaka0825
6
2k
NSOutlineView何もわからん:( 前編 / I Don't Understand About NSOutlineView :( Pt. 1
usagimaru
0
340
Featured
See All Featured
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
6
430
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
26
2.1k
Statistics for Hackers
jakevdp
796
220k
Typedesign – Prime Four
hannesfritz
40
2.4k
Imperfection Machines: The Place of Print at Facebook
scottboms
265
13k
StorybookのUI Testing Handbookを読んだ
zakiyama
27
5.3k
A Tale of Four Properties
chriscoyier
156
23k
Happy Clients
brianwarren
98
6.7k
Building Your Own Lightsaber
phodgson
103
6.1k
Facilitating Awesome Meetings
lara
50
6.1k
Designing Experiences People Love
moore
138
23k
Product Roadmaps are Hard
iamctodd
PRO
49
11k
Transcript
Clean Code through Dependency Injection
Your host Mike Seghers Developer/Architect
[email protected]
@mikeseghers
Creating apps: a recent history
2012
Coding Example Acceptable in 2012 struct SkeumorphicDesigner { func createDesign(requirements:
Requirements) -> Design { //Draws some boxes with stitches, applies colors //returns Design } } struct ObjectiveCDeveloper { func createApp(requirements: Requirements, design: Design) -> App { //Does some code between [], applies the design using //InterfaceBuilder, returns App }
Coding Example Acceptable in 2012 class AppFactory2012 { private let
developer:ObjectiveCDeveloper private let designer:SkeumorphicDesigner init() { developer = ObjectiveCDeveloper() designer = SkeumorphicDesigner() } public func createApp(requirements:Requirements) -> App { let design = designer.createDesign(requirements) return developer.createApp(requirements, design: design) } } … let appFactory = AppFactory2012() let app = appFactory.createApp(requirements)
2013
Coding Example Acceptable in 2013 struct FlatDesigner { func createDesign(requirements:
Requirements) -> Design { //Draws some flat boxes, applies less color, returns Design } } struct ObjectiveCDeveloper { … }
Coding Example Acceptable in 2013 class AppFactory2013 { private let
developer:ObjectiveCDeveloper private let designer:FlatDesigner init() { developer = ObjectiveCDeveloper() designer = FlatDesigner() } public func createApp(requirements:Requirements) -> App { let design = designer.createDesign(requirements) return developer.createApp(requirements, design: design) } } … let appFactory = AppFactory2013() let app = appFactory.createApp(requirements)
Current
Coding Example Acceptable in now struct SwiftDeveloper { func createApp(requirements:
Requirements, design: Design) -> App { //Does some code without semi-colons, applies the //design using StoryBoards, returns App } struct FlatDesigner { … }
Coding Example Acceptable in now class AppFactory2014 { private let
developer:SwiftDeveloper private let designer:FlatDesigner init() { developer = SwiftDeveloper() designer = FlatDesigner() } public func createApp(requirements:Requirements) -> App { let design = designer.createDesign(requirements) return developer.createApp(requirements, design: design) } } … let appFactory = AppFactory2014() let app = appFactory.createApp(requirements)
How many app factories does one need?
Coding Example Acceptable all the time protocol Designer { func
createDesign(requirements: Requirements) -> Design } protocol Developer { func createApp(requirements: Requirements, design: Design) -> App } extension SkeumorphicDesigner : Designer {} extension FlatDesigner : Designer {} extension ObjectiveCDeveloper : Developer {} extension SwiftDeveloper : Developer {}
Coding Example Acceptable all the time class AppFoundry { private
let developer:Developer private let designer:Designer init(developer: Developer, designer: Designer) { self.developer = developer self.designer = designer } func createApp(requirements:Requirements) -> App { let design = designer.createDesign(requirements) return developer.createApp(requirements, design: design) } }
Coding Example Acceptable all the time let developer = ObjectiveCDeveloper()
let designer = SkeumorphicDesigner() let oldSchoolFoundry = AppFoundry(developer: developer, designer: designer) oldSchoolFoundry.createApp(requirements)
Coding Example Acceptable all the time let developer = ObjectiveCDeveloper()
let designer = FlatDesigner() let playingItSaveFoundry = AppFoundry(developer: developer, designer: designer) playingItSaveFoundry.createApp(requirements)
Dependency Injection
Helps with reusable code
Dependency Injection
Helps with loose coupling
Dependency Injection
Helps with (unit) tests
Dependency Injection
Helps keep your code clean
Questions? Come talk to me! Mike Seghers Developer/Architect
[email protected]
@mikeseghers
https://github.com/appfoundry/Reliant