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࣮ફత
BOUNDARIES
IN PRACTICE
TRY! SWIFT 2016
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HI, I’M AYAKA.
A.K.A. ࠼Ֆ
@AYANONAGON
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FUNCTIONAL CORE
IMPERATIVE SHELL
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FUNCTIONAL CORE
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APP = MANY FUNCTIONAL CORES
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WITH IMPERATIVE SHELLS
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“ALL YOU REALLY KNOW MAYBE IS THAT
YOUR TASTE IS IMPROVING A LOT
FASTER THAN YOUR ABILITY.”
ANDY MATUSCHAK, ADVANCED IOS APPLICATION ARCHITECTURE AND PATTERNS (WWDC 2014)
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࣮ફత
BOUNDARIES
IN PRACTICE
TRY! SWIFT 2016
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ୈҰ
IMMUTABLE CORE
NETWORK-Y SHELL
ෆมͳਊɺωοτϫʔΫͬΆ͍ද໘
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struct Story {
let ID: String
let title: String
let message: String
let sender: User
let recipient: User
let date: NSDate
// ...
}
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class StoriesViewController: UIViewController {
let stories: [Story]
// ...
}
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class StoryDetailViewController: UIViewController {
init(story: Story)
}
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class StoryDetailViewController: UIViewController {
private let titleView: StoryTitleView
private let senderView: AvatarView
private let recipientView: AvatarView
private let dateLabel: DateLabel
init(story: Story) {
titleView = StoryTitleView(story: story)
senderView = AvatarView(user: story.sender)
recipientView = AvatarView(user: story.recipient)
dateLabel = DateLabel(date: story.date)
}
// ...
}
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url_scheme://stories/12345
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class StoryDetailViewController: UIViewController {
init(story: Story)
}
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class StoryDetailViewController: UIViewController {
init(story: Story)
init(storyID: String)
}
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class StoryDetailViewController: UIViewController {
private let titleView: StoryTitleView
private let senderView: AvatarView
private let recipientView: AvatarView
private let dateLabel: DateLabel
init(story: Story) { /* Same as before લͱಉ͡ */ }
init(storyID: String) {
// Hmmmmmmm.ɹ͜ΕԿͩΖ͏ʁ
}
}
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class StoryDetailViewController: UIViewController {
let storyID: String
private var titleView: StoryTitleView?
private var senderView: AvatarView?
private var recipientView: AvatarView?
private var dateLabel: DateLabel?
init(story: Story) { /* Same as before લͱಉ͡ */ }
init(storyID: String) {
self.storyID = storyID
titleView = nil
senderView = nil
recipientView = nil
dataLabel = nil
}
// Load everything from API in viewDidLoad?
// viewDidLoadͰAPI͔Βϩʔυʁ!ɹ
}
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class StoryContainerViewController: UIViewController {
let storyID: String
init(storyID: String) {
self.storyID = storyID
}
override func viewDidLoad() {
client.showStory(ID: storyID) { result in
switch result {
case .Success(let story):
let viewController = StoryDetailViewController(story: story)
self.addChildViewController(viewController)
self.view.addSubview(viewController.view)
viewController.view.frame = view.bounds
viewController.didMoveToParentViewController(self)
case .Error(let error): // Show errorɹΤϥʔදࣔ
}
}
}
}
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url_scheme://stories/12345
StoryContainerViewController(storyID: "12345")
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url_scheme://stories/12345
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url_scheme://stories/12345
url_scheme://users/007
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url_scheme://stories/12345
url_scheme://users/007
url_scheme://messages/9876
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protocol RemoteContentProviding {
typealias Content
func fetchContent(completion: Result -> Void)
func viewControllerForContent(content: Result) -> UIViewController
}
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class RemoteContentContainerViewController: UIViewController {
let provider: T
init(provider: T) {
self.remoteContentProvider = remoteContentProvider
super.init(nibName: nil, bundle: nil)
}
override func viewDidLoad() {
super.viewDidLoad()
provider.fetchContent { content in
let viewController = self.provider.viewControllerForContent(content)
self.addChildViewController(viewController)
self.view.addSubview(viewController.view)
viewController.view.frame = view.bounds
viewController.didMoveToParentViewController(self)
}
}
}
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struct StoryProvider: RemoteContentProviding {
let ID: String
func fetchContent(completion: Result -> Void) {
client.showStory(ID: ID, completion: completion)
}
func viewControllerForContent(content: Result) -> UIViewController {
switch content {
case .Success(let story): return StoryDetailViewController(story: story)
case .Error(_): return ErrorViewController(title: "Could not find story.")
}
}
}
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url_scheme://stories/12345
let provider = StoryProvider(ID: "12345")
RemoteContentContainerViewController(provider: provider)
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url_scheme://users/007
let provider = UserProvider(ID: "007")
RemoteContentContainerViewController(provider: provider)
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url_scheme://messages/9876
let provider = MessageProvider(ID: "9876")
RemoteContentContainerViewController(provider: provider)
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class StoryDetailViewController: UIViewController {
let storyID: String
private var titleView: StoryTitleView?
private var senderView: AvatarView?
private var recipientView: AvatarView?
private var dateLabel: DateLabel?
init(story: Story) { /* Same as before */ }
init(storyID: String) {
self.storyID = storyID
titleView = nil
senderView = nil
recipientView = nil
dataLabel = nil
}
// Load everything from API in viewDidLoad?
// viewDidLoadͰAPI͔Βϩʔυʁ!
}
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class StoryDetailViewController: UIViewController {
private let titleView: StoryTitleView
private let senderView: AvatarView
private let recipientView: AvatarView
private let dateLabel: DateLabel
init(story: Story) {
titleView = StoryTitleView(story: story)
senderView = AvatarView(user: story.sender)
recipientView = AvatarView(user: story.recipient)
dateLabel = DateLabel(date: story.date)
}
// ...
}
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ୈೋ
INDEPENDENT CORES
CONNECTIVE SHELL
ಠཱͨ͠ਊͱܨ͛Δද໘
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COORDINATORS
SOROUSH KHANLOU @ NSSPAIN
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VIEW CONTROLLERS DON’T KNOW
ABOUT OTHER VIEW CONTROLLERS
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@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
private lazy var applicationCoordinator: ApplicationCoordinator = {
return ApplicationCoordinator(window: self.window!)
}()
func application(application: UIApplication, didFinishLaunchingWithOptions
launchOptions: [NSObject: AnyObject]?) -> Bool {
window = UIWindow(frame: UIScreen.mainScreen().bounds)
applicationCoordinator.start()
return true
}
}
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protocol Coordinator {
func start()
}
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class ApplicationCoordinator: Coordinator {
let window: UIWindow
let rootViewController = UITabBarController()
let wordsNavigationController = UINavigationController()
let phrasesNavigationController = UINavigationController()
let wordsCoordinator: WordsCoordinator
let phrasesCoordinator: PhrasesCoordinator
init(window: UIWindow) {
self.window = window
let viewControllers = [wordsNavigationController, phrasesNavigationController]
self.rootViewController.setViewControllers(viewControllers, animated: false)
self.wordsCoordinator = WordsCoordinator(presenter: wordsNavigationController)
self.phrasesCoordinator = PhrasesCoordinator(presenter: phrasesNavigationController)
}
func start() {
window.rootViewController = rootViewController
wordsCoordinator.start()
phrasesCoordinator.start()
window.makeKeyAndVisible()
}
}
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class WordsCoordinator: Coordinator {
let presenter: UINavigationController
private let listViewController: ListViewController
private let dataSource: WordsDataSource
init(presenter: UINavigationController) {
self.presenter = presenter
self.dataSource = WordsDataSource()
self.listViewController = ListViewController()
self.listViewController.title = "Words"
self.listViewController.items = dataSource.words
self.listViewController.configureCell = { cell, item in
cell.item = item
}
self.listViewController.didSelectItem = { item in
presenter.pushViewController(WordViewController(word: item), animated: true)
}
}
func start() {
presenter.pushViewController(listViewController, animated: false)
}
}
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class PhrasesCoordinator: Coordinator {
let presenter: UINavigationController
private let listViewController: ListViewController
private let dataSource: PhrasesDataSource
init(presenter: UINavigationController) {
self.presenter = presenter
self.dataSource = PhrasesDataSource()
self.listViewController = ListViewController()
self.listViewController.title = "Phrases"
self.listViewController.items = dataSource.phrases
self.listViewController.configureCell = { cell, item in
cell.item = item
}
self.listViewController.didSelectItem = { item in
presenter.pushViewController(PhraseViewController(phrase: item), animated: true)
}
}
func start() {
presenter.pushViewController(listViewController, animated: false)
}
}
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ApplicationCoordinator
/ \
WordsCoordinator PhrasesCoordinator
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ApplicationCoordinator
/ \
WordsCoordinator PhrasesCoordinator
/
SearchCoordinator
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ApplicationCoordinator
/ \
DictionaryCoordinator LoginCoordinator
/ \
WordsCoordinator PhrasesCoordinator
/
SearchCoordinator
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ApplicationCoordinator
/ \ \
DictionaryCoordinator LoginCoordinator SignUpCoordinator
/ \
WordsCoordinator PhrasesCoordinator
/
SearchCoordinator
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நԽ
ABSTRACTION
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ݎ࣮
SOLID
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ྲྀಈత
FLUID
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ྲྀಈత 㲗 ݎ࣮
FLUID 㲗 SOLID
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কདྷੑ
FUTURE PROOF
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THANK YOU
͋Γ͕ͱ͏ʂ
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