SwiftUI App/Scene - SwiftUI App/Scene の実際

by notoroid

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4XJGU6*"QQ4DFOF 4XJGU6*"QQ4DFOFͷ࣮ࡍ

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ࣗݾ঺հ

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ೳొཁ !OPUPSPJE w J04ΞϓϦ։ൃऀ w ԰߸͍Γ·͢ిࢉاը w !OPUPSPJE w !JSJNBTV w ࠷ۙͷಈ޲ w ϒϩά࡮৽͠·ͨ͠

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ॆిใࠂ͞Μ #BUUFSFDFJWFS w όοςϦʔϞχλʔ ϢʔςΟϦςΟʔ w ࠷େ୆ ࣮ػϦϞʔτ୆ w ख࣋ͪͷJ1IPOF͔Βଞʹ͍࣋ͬͯΔ J1IPOF J1BEͳͲͷػثͷόοςϦʔঢ়ଶ֬ ೝՄೳ w ࣗ୐ʹ͋ΔJ1IPOFͷόοςϦʔঢ়ଶ֬ೝՄ ೳ

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ॆిใࠂ͞Μ #BUUFSFDFJWFS w "QQMF8BUDIରԠ w $PNQMJDBUJPOTରԠ w ॆి׬ྃ௨஌ w ॆి׬ྃΛ఻͑ͯ͘ΕΔ௨஌Λ௥Ճ w ҎԼʹࢦఆ͢Δ͜ͱͰόοςϦʔ ΛέΞ͢Δ͜ͱ͕Մೳ w Կ͔ͱߴ͍J1IPOFΛ௕࣋ͪͤ͞Δͷʹ༗ ༻

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ॆిใࠂ͞Μ #BUUFSFDFJWFS /FX ΢ΟδοτʹରԠ͠·ͨ͠ J04ʙ 4NBMM .FEJVN

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࿩͢͜ͱ w 4XJGU6*"QQ4DFOF w 6*4DFOF%FMFHBUF w 6*)PTUJOH$POUSPMMFS

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࿩͞ͳ͍͜ͱ w NBD04ͷϥΠϑαΠΫϧৄࡉ

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୊໨ w ΞϓϦΛJ04ରԠ͠·ͨ͠ w "QQ%FMFHBUF੔ཧͷྺ࢙ w 4XJGU6*"QQ4DFOFͷ࣮ࡍ w ·ͱΊ

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ΞϓϦΛJ04ରԠ͠·ͨ͠

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ΞϓϦΛJ04ରԠ͠·ͨ͠ w J04ͰͷϨΠΞ΢τ่ΕΛमਖ਼ w 8JEHFU,JUΛαϙʔτ 4NBMM .FEJVN w Ͱ͖Δ͜ͱ͸5PEBZ&YUFOTJPOͱେࠩͳ͠ w J04Ҏ্ͷ04Ͱಈ࡞

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J04ͷػೳ͕ັྗͳΒ J04Ҏ߱͸੾Γࣺ͔ͯͨ΋

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݁Ռͱͯ͠ J04αϙʔτܧଓ

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J04ҎલΛ੾ΓࣺͯΔͭ΋ΓͰ͍͕ͨ ͦͷඞཁ͕ͳ͔ͬͨͱ͍͏ͷ͕ ࠓճͷ͓୊

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"QQ%FMFHBUF੔ཧͷྺ࢙

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୺తʹ͍͏ͱ

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"QQ%FMFHBUFʹ՝ͤΒΕͨ੹຿Λ੔ཧ ϚϧνϓϥοτϑΥʔϜʹ޲͚ͯௐ੔͕ J04͔ΒJ04ʹ͔͚࣮ͯࢪ

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"QQ%FMFHBUFͷ੹຿Ћ w ΞϓϦͷΤϯτϦʔϙΠϯτ &OUSZ1PJOU w ΞϓϦΠϕϯτͷัଊ "QQMJDBUJPO&WFOU w ը໘ͷߏங 4DSFFO#VJME w ЋϚϧνϓϥοτϑΥʔϜԽ .VMUJQMBUGPSN

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ϑΝΠϧ͔ΒݟΔ੔ཧͷ࣌ܥྻ 0CKFDUJWF$ J04 J04 J04 NBJON "QQ%FMFHBUFI "QQ%FMFHBUFN "QQ%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU 4DFOF%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU "QQTXJGU 1BTU 'VUVSF

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&OUSZ1PJOU 0CKFDUJWF$ J04 J04 J04 NBJON "QQ%FMFHBUFI "QQ%FMFHBUFN "QQ%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU 4DFOF%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU "QQTXJGU 1BTU 'VUVSF &OUSZ1PJOU &OUSZ1PJOU &OUSZ1PJOU &OUSZ1PJOU

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"QQMJDBUJPO&WFOU 0CKFDUJWF$ J04 J04 J04 NBJON "QQ%FMFHBUFI "QQ%FMFHBUFN "QQ%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU 4DFOF%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU "QQTXJGU 1BTU 'VUVSF &OUSZ1PJOU &OUSZ1PJOU &OUSZ1PJOU &OUSZ1PJOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU

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4DSFFO#VJME 0CKFDUJWF$ J04 J04 J04 NBJON "QQ%FMFHBUFI "QQ%FMFHBUFN "QQ%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU 4DFOF%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU "QQTXJGU 1BTU 'VUVSF &OUSZ1PJOU &OUSZ1PJOU &OUSZ1PJOU &OUSZ1PJOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU 4DSFFO#VJME 4DSFFO#VJME 4DSFFO#VJME 4DSFFO#VJME

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.VMUJQMBUGPSN 0CKFDUJWF$ J04 J04 4XJGU6* NBJON "QQ%FMFHBUFI "QQ%FMFHBUFN "QQ%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU 4DFOF%FMFHBUFTXJGU "QQ%FMFHBUFTXJGU "QQTXJGU 1BTU 'VUVSF &OUSZ1PJOU &OUSZ1PJOU &OUSZ1PJOU &OUSZ1PJOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU "QQMJDBUJPO&WFOU 4DSFFO#VJME 4DSFFO#VJME 4DSFFO#VJME 4DSFFO#VJME .VMUJQMBUGPSN

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4XJGU6*ʹΑͬͯ"QQ%FMFHBUF͸ ΞϓϦΠϕϯτΛ؅ཧ͢Δ͚ͩͷ໾ׂʹ

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4XJGU6*"QQ4DFOFͷ࣮ࡍ

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4XJGU6*"QQ-JGF$ZDMF w J04͔Βొ৔ w "QQ%FMFHBUF4DFOF%FMFHBUFͷ࢓૊ΈΛ؆ܿʹهड़Ͱ͖Δ w 6*,JUͷΞϓϦΠϕϯτରԠͷͨΊ@ఆ͕ٛ༻ҙ͞Εͨ w !6*"QQMJDBUJPO%FMFHBUF"EBQUPS

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import SwiftUI @main struct FooApp: App { @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate var body: some Scene { WindowGroup { Text("͜ͷը໘͸Ұ࣌తͳ΋ͷͰ͢") .padding() } } }

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J04·Ͱͷ൥ࡶ͔͞Β J04͔Βͷ؆ܿ͞͸ མࠩͷ෼ɺΠϯύΫτ͸େ͖͍

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"QQ%FMFHBUFͱ4DFOF%FMFHBUFΛ ஔ׵Ͱ͖Δͱ·Ͱॻ͘#MPH౤ߘ·Ͱొ৔

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SwiftUI’s New App Lifecycle and Replacements for AppDelegate and SceneDelegate in iOS 14 IUUQTMJOLNFEJVNDPNDB,&9Q3

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͸ͨͯͦ͠͏͔

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͜ͱͷൃ୺

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4XJGU6*"QQ4DFOFͰ ࣗ࡞ΞϓϦ ॆిใࠂ͞Μ ͷ ػೳʹରԠ͍ͨ͠

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4XJGU6*"QQ4DFOFͰ࣮ݱ͍ͨ͠6*,JUػೳ ᶃγϣʔτΧοτػೳ ᶄ4UBUVTCBS4UZMF

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4XJGU6*"QQ4DFOFͰ࣮ݱ͍ͨ͠6*,JUػೳ ᶃγϣʔτΧοτػೳ ᶄ4UBUVTCBS4UZMF "QQ%FMFHBUFͰγϣʔτΧοτొ࿥ 4DFOF%FMFHBUFͷ೿ੜΫϥεͰΠϕϯτड͚औΓ 6*)PTUJOH$POUSPMMFSͷ೿ੜΫϥεͰ εςʔλεόʔελΠϧࢦఆ

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ͭͷػೳڞʹ 4XJGU6*ະରԠ

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ͦ͜Ͱ൑໌ͨ͠఺

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4XJGU6*"QQ4DFOFͰ΋ 4DFOF%FMFHBUFػೳ͸ซଘ͍ͯ͠Δ

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αϯϓϧίʔυ HJUIVCDPNOPUPSPJE 4XJGU6*-JGF$ZDMF0WFSSJEF

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4DFOF%FMFHBUF 6*4DFOF%FMFHBUF w J04͔Βಋೖ͞Εͨը໘ؔ܎Πϕϯτัଊ w ΞϓϦ಺ʹผʑͷίϯςΩετΛ࣋ͭ4DFOF͕ଘࡏ͢Δͱ͍͏ߟ͑ w ίϯςΩετྫυΩϡϝϯτϑΝΠϧɺ63- w J1BE04ͷΑ͏ͳෳ਺υΩϡϝϯτѻ͏ΞϓϦͰ͸ͳ͍ͱϐϯͱ͜ͳ͍

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4DFOF%FMFHBUFಠಛͳهड़ᶃ

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4DFOF%FMFHBUFಠಛͳهड़ᶄ import UIKit class AppDelegate: UIResponder, UIApplicationDelegate { // MARK: UISceneSession Lifecycle func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration { // Called when a new scene session is being created. // Use this method to select a configuration to create the new scene with. return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role) } func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set) { } } "QQ%FMFHBUFͰͷ4DFOFੜ੒Πϕϯτίʔυ

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4DFOF%FMFHBUFಠಛͳهड़ᶅ import UIKit class SceneDelegate: UIResponder, UIWindowSceneDelegate { func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { } func sceneDidDisconnect(_ scene: UIScene) { } func windowScene(_ windowScene: UIWindowScene, performActionFor shortcutItem: UIApplicationShortcutItem, completionHandler: @escaping (Bool) -> Void) { } } γϣʔτΧοτΠϕϯτΛิ଍͢Δ4DFOF%FMFHBUFͷίʔυ

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·ͱΊ w J04·Ͱͷॏ੹Λ୲͖ͬͯͨ"QQ%FMFHBUF͸੔ཧ͞Ε·ͨ͠ w .VMUJQMBUGPSN·Ͱݟਾ͑ͨͷ͕4XJGU6*"QQ4DFOFͷಋೖ w 4XJGU6*"QQ4DFOFΛ࠾༻ͯ͠΋1MBUGPSN͝ͱͷϥΠϑαΠΫϧ ͸݈ࡏ