Playground駆動開発のすすめ / Playground driven development suggestion

by rockname

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iOSDC Japan 2018  2018/08/30 גࣜձࣾϛΫγΟ/ΈͯͶࣄۀ෦ ؠ໊༐ً @rockname Playgroundۦಈ։ൃ ͷ͢͢Ί

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@rockname גࣜձࣾϛΫγΟ / ΈͯͶࣄۀ෦  ΞϓϦ։ൃG 18৽ଔ iOS(Swift, objc), Android(Kotlin, Java), Rails(ruby)…

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UIͷ࣮૷Λ൐͏  iOSΞϓϦ։ൃϑϩʔ

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1 ϩδοΫΛ૊Ή 2 StoryboardͰϨΠΞ΢τ 3 ಈ࡞֬ೝ w ͦΕͧΕͷΞʔΩςΫνϟʹԠͯ͡ϩδοΫ͔Β૊ΜͰ͍͘ w $MFBO"SDIJUFDUVSFͳΒ%PNBJO͔Β w ςετॻ͘ w ΞχϝʔγϣϯͳͲಈతͳཁૉҎ֎͸ఆٛͯ͠͠·͏ w ࣮ػ΍4JNVMBUPSͰҙਤͨ͠ڍಈΛ͢Δ͔֬ೝ

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1 ϩδοΫΛ૊Ή 2 StoryboardͰϨΠΞ΢τ 3 ಈ࡞֬ೝ w ͦΕͧΕͷΞʔΩςΫνϟʹԠͯ͡ϩδοΫ͔Β૊ΜͰ͍͘ w $MFBO"SDIJUFDUVSFͳΒ%PNBJO͔Β w ςετॻ͘ w ΞχϝʔγϣϯͳͲಈతͳཁૉҎ֎͸ఆٛͯ͠͠·͏ w ࣮ػ΍4JNVMBUPSͰҙਤͨ͠ڍಈΛ͢Δ͔֬ೝ 4 σβΠϯௐ੔

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• ෳ਺ղ૾౓ͰͷϨΠΞ΢τ • ৚݅ʹΑͬͯมΘΔදࣔ಺༰ • ϩʔΧϥΠζͷจݴ…

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Xcode Simulator  /Device #VJME͕௨ΔͷΛ଴ͬͯ  ϨΠΞ΢τΛ֬ೝ ϨΠΞ΢τΛௐ੔ͯ͠  ࠶Ϗϧυ • ෳ਺ղ૾౓ͰͷϨΠΞ΢τ • ৚݅ʹΑͬͯมΘΔදࣔ಺༰ • ϩʔΧϥΠζͷจݴ…

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UIͷௐ੔Λ΋ͬͱૣ͍αΠΫϧͰճ͍ͨ͠…

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– Playground driven development “Playgroundۦಈ։ൃ”

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Playgroundۦಈ։ൃͱ͸ • ViewͷΈΛ୹࣌ؒͰϏϧυͯ͠ର৅ͷγʔϯΛ PlaygroundͰදࣔ͢Δ͜ͱͰσβΠϯௐ੔ͷϑ ϩʔΛૣ͘͢Δ։ൃख๏  • Kickstarter͕ఏএ  (https://github.com/kickstarter/ios-oss)

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Kickstarter͸͜Μͳײ͡

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Kickstarter͸͜Μͳײ͡

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Kickstarter͸͜Μͳײ͡

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ಋೖखॱ

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1. Cocoa Touch frameworkΛ λʔήοτʹ௥Ճ

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1. Cocoa Touch frameworkΛ λʔήοτʹ௥Ճ

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2. ࡞੒ͨ͠Frameworkʹ  ViewΛ௥Ճ͍ͯ͘͠

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3. (CarthageΛ࢖༻ͨ͠৔߹ͷΈ)  ViewͷදࣔʹඞཁͳϥΠϒϥϦΛ௥Ճ

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4. PlaygroundΛ  ϓϩδΣΫτʹ௥Ճ

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5. PlaygroundͰViewΛදࣔ let vc = ViewController() PlaygroundPage.current.liveView = vc

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5. PlaygroundͰViewΛදࣔ

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5. PlaygroundͰViewΛදࣔ

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͞ΒʹPlaygroundʹ৽ػೳ͕…

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What’s new in Playground  - WWDC 2018 Xcode10͔ΒPlaygroundͷஞ࣮࣍ߦ͕Մೳʹ…!!  (https://developer.apple.com/videos/play/ wwdc2018/402/) Alex Brown, Core OS Engineer • Running Step by Step NEW

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What’s new in Playground  - WWDC 2018 ҰʑίϝϯτΞ΢τ͢Δඞཁ͕ͳ͘ ϑϩʔΛڞ௨Խ͠΍͘͢ͳͬͨ Alex Brown, Core OS Engineer • Running Step by Step NEW

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۩ମతʹͲΜͳखॱͰ σβΠϯௐ੔͢Δͷ

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DEMO IUUQTHJUIVCDPNSPDLOBNF1MBZHSPVOE%SJWFO%FWFMPQNFOU

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DEMOͷྲྀΕ • TwitterͷΑ͏ͳΞϓϦΛ࡞ͬͨʂ • σβΠϯ֬ೝ͢Δͧʂ ౤ߘ͕ ͳ͍/͋Δ ͱ͖ͷදࣔ͸ਖ਼͍͠ʁ ͪΌΜͱ ϩʔΧϥΠζ ͞ΕͯΔʁ খ͍͞, େ͖͍୺຤Ͱ ϨΠΞ΢τ ่Εͯͳ͍ʁ • मਖ਼ͯ͠ View͚ͩ ϏϧυͰ࠶֬ೝʂ

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࣮૷આ໌

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func display(device: Device, orientation: Orientation, language: Language) {  let vc = R.storyboard.twitter.instantiateInitialViewController()!    let (parent, _) = playgroundControllers(device: device, orientation: .portrait, child: vc)      AppEnvironment.language = language      PlaygroundPage.current.liveView = parent  vc.load(statuses) } 1SPKFDUQMBZHSPVOE5XJUUFSYDQMBZHSPVOEQBHF

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1SPKFDUQMBZHSPVOE5XJUUFSYDQMBZHSPVOEQBHF func display(device: Device, orientation: Orientation, language: Language) {  let vc = R.storyboard.twitter.instantiateInitialViewController()!    let (parent, _) = playgroundControllers(device: device, orientation: .portrait, child: vc)      AppEnvironment.language = language      PlaygroundPage.current.liveView = parent  vc.load(statuses) } simulatorͷsizeͳͲΛࢦఆ

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public func playgroundControllers(device: Device = .phone4_7inch, orientation: Orientation, child: UIViewController, additionalTraits: UITraitCollection) -> (parent: UIViewController, child: UIViewController) { let parent = UIViewController() parent.addChild(child) parent.view.addSubview(child.view) child.view.autoresizingMask = [.flexibleWidth, .flexibleHeight] let traits: UITraitCollection switch (device, orientation) { case (.phone3_5inch, .portrait): parent.view.frame = .init(x: 0, y: 0, width: 320, height: 480) traits = .init(traitsFrom: [ .init(horizontalSizeClass: .compact), .init(verticalSizeClass: .regular), .init(userInterfaceIdiom: .phone) ]) ɾ  ɾ  ɾ simulatorͷsizeͳͲΛࢦఆ 1SPKFDUQMBZHSPVOE4PVSDFTEFWJDFTXJGU

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public func playgroundControllers(device: Device = .phone4_7inch, orientation: Orientation, child: UIViewController, additionalTraits: UITraitCollection) -> (parent: UIViewController, child: UIViewController) { let parent = UIViewController() parent.addChild(child) parent.view.addSubview(child.view) child.view.autoresizingMask = [.flexibleWidth, .flexibleHeight] let traits: UITraitCollection switch (device, orientation) { case (.phone3_5inch, .portrait): parent.view.frame = .init(x: 0, y: 0, width: 320, height: 480) traits = .init(traitsFrom: [ .init(horizontalSizeClass: .compact), .init(verticalSizeClass: .regular), .init(userInterfaceIdiom: .phone) ]) 1SPKFDUQMBZHSPVOE4PVSDFTEFWJDFTXJGU ɾ  ɾ  ɾ simulatorͷsizeͳͲΛࢦఆ Device, OrientationʹԠͯ͡  sizeΛࢦఆ͢Δ

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ɾ  ɾ  ɾ child.view.frame = parent.view.frame parent.preferredContentSize = parent.view.frame.size parent.view.backgroundColor = .white child.view.backgroundColor = .white let allTraits = UITraitCollection.init(traitsFrom: [traits, additionalTraits]) parent.setOverrideTraitCollection(allTraits, forChild: child) return (parent, child) } simulatorͷsizeͳͲΛࢦఆ 1SPKFDUQMBZHSPVOE4PVSDFTEFWJDFTXJGU

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public struct AppEnvironment { public static var language: Language = .ja public static var currentUser: String? = nil public var isLoggedIn: Bool { return AppEnvironment.currentUser != nil } } GlobalʹΞϓϦͷ؀ڥΛ͍࣋ͨͤͯΔ LanguageΛࢦఆ %PNBJO"QQ&OWJSPONFOUTXJGU

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extension StringResourceType { func localized(language: Language = AppEnvironment.language) -> String { return NSLocalizedString(key, bundle: Bundle(path: stringsBundle.path(forResource: language.rawValue, ofType: "lproj") ?? "") ?? stringsBundle, comment: "") } } private class Pin {} public let stringsBundle = Bundle(for: Pin.self) LanguageΛࢦఆ 1SFTFOUBUJPOʜ4USJOH3FTPVSDF5ZQFMPDBMJ[FETXJGU

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extension StringResourceType { func localized(language: Language = AppEnvironment.language) -> String { return NSLocalizedString(key, bundle: Bundle(path: stringsBundle.path(forResource: language.rawValue, ofType: "lproj") ?? "") ?? stringsBundle, comment: "") } } private class Pin {} public let stringsBundle = Bundle(for: Pin.self) 1SFTFOUBUJPOʜ4USJOH3FTPVSDF5ZQFMPDBMJ[FETXJGU NSLocalizedStringͷҾ਺ʹ LanguageʹԠͨ͡BundleΛ౉͢Α͏ʹ͢Δ LanguageΛࢦఆ

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ViewΛදࣔ

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ViewΛදࣔ

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Α͠ɺΈͯͶͰ΋ಋೖʂ

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Α͠ɺΈͯͶͰ΋ಋೖʂ

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ಋೖ·ͰͷಓͷΓ Viewʹදࣔ͢Δ΋ͷΛϞοΫͰ͖ΔΑ͏ʹઃܭ ଟݴޠରԠΛ͍ͯ͠ΔͷͰɺNSLocalizedStringͷ ॳظԽ࣌ʹBundleͷpathΛ౉͢ Embedded Frameworkͷಋೖ PlaygroundͷPageಋೖϑϩʔڞ௨Խɾڞ༗