iOSDC 2021 Restore

iOSDC 2021 バックグラウンドでアプリがキルされても怖くない！アプリの状態を元に戻すリストア機能の全て

Transcript

1. όοΫάϥ΢ϯυͰΞϓϦ͕Ωϧ͞Εͯ΋
   ා͘ͳ͍ʂ
   ΞϓϦͷঢ়ଶΛݩʹ໭͢ϦετΞػೳͷશͯ J04%$
   
   5TVZPTIJ
   IZVHB
2. όοΫάϥ΢ϯυͰΞϓϦ͕Ω ϧ͞Εͯ΋ා͘ͳ͍
3. όοΫάϥ΢ϯυͰΞϓϦ͕Ωϧ͞Εͯ΋ා͘ͳ͍ w J04%$
   
   w ৄղ4UPSZCPBSE಺Ͱগ͠ղઆ
4. .PSF
   *OGPSNBUJPO IUUQTXXXZPVUVCFDPNXBUDI WV'I6DIC0@TUT ৄղ4UPSZCPBSE 
   
5. όοΫάϥ΢ϯυͰΞϓϦ͕Ω ϧ͞Εͯ΋ා͘ͳ͍
6. "QQ
   "
   -BVODI
   4DSFFO ΞϓϦ"Λىಈ
7. ΞϓϦ"Λར༻த
8. ΞϓϦ"Ͱɺ͍͍͘͢͝৔໘·ͰਐΜͰ͍Δ
9. ΞϓϦ#
   ΞϓϦ#͔Β௨஌
10. ΞϓϦ#ʹભҠͯ͠ɺ৭ʑ΍Δ "QQ
    #
11. ΞϓϦ"ʹ໭Δ "QQ
    "
    -BVODI
    4DSFFO
12. ΞϓϦ"͸࠷ॳ͔Βʹͳ͍ͬͯΔ
13. ΞϓϦར༻Λ΍ΊΔ
14. ΞϓϦ͕ऴྃͨ࣌͠ͷରࡦ
15. ͦΕɺ4UPSZCPBSEͰ
    ରࡦͰ͖·͢Α
16. 3FTUPSBUJPO
17. 3FTUPSBUJPO w 6*"QQMJDBUJPO%FMFHBUFͰঢ়ଶͷอଘͱ෮ݩΛ༗ޮʹ͢Δ
    w ෮ݩ͍ͨ͠7JFX$POUSPMMFSʹରͯ͠3FTUPSBUJPO
    *%Λઃఆ͢Δ
18. 6*"QQMJDBUJPO%FMFHBUFͰ
    ঢ়ଶͷอଘͱ෮ݩΛ༗ޮʹ͢Δ
19. ঢ়ଶͷอଘͱ෮ݩΛ༗ޮʹ͢Δ w 6*"QQMJDBUJPO%FMFHBUFͷ3FTUPSFܥϝιουΛUSVFʹ͢Δ
    w BQQMJDBUJPO @TIPVME4BWF4FDVSF"QQMJDBUJPO4UBUF
    w BQQMJDBUJPO @TIPVME3FTUPSF4FDVSF"QQMJDBUJPO4UBUF
    w BQQMJDBUJPO @TIPVME4BWF"QQMJDBUJPO4UBUF
    w BQQMJDBUJPO @TIPVME3FTUPSF"QQMJDBUJPO4UBUF
20. extension AppDelegate { func application(_ application: UIApplication, shouldSaveApplicationState coder: NSCoder) -> Bool { return true } func application(_ application: UIApplication, shouldRestoreApplicationState coder: NSCoder) -> Bool { return true } @available(iOS 13.2, *) func application(_ application: UIApplication, shouldSaveSecureApplicationState coder: NSCoder) -> Bool { return true } @available(iOS 13.2, *) func application(_ application: UIApplication, shouldRestoreSecureApplicationState coder: NSCoder) -> Bool { return true } }
21. ෮ݩ͍ͨ͠7JFX$POUSPMMFSʹରͯ͠
    3FTUPSBUJPO
    *%Λઃఆ͢Δ
22. 3FTUPSBUJPO
    *%ͷઃఆ ෮ݩ͍ͨ͠ର৅ͷ7JFX$POUSPMMFSશͯʹϢχʔΫͳ3FTUPSBUJPO
    *%ΛׂΓ౰ͯΔ
23. ϦετΞͷςετ
24. ϦετΞͷςετ ໨తͷը໘·ͰભҠ͢Δ
    ྫͱͯ͠.PEBMભҠΛߦ͏
    ʢ/BWJHBUJPOભҠͰ΋Մʣ
25. ϦετΞͷςετ Ұ౓ϗʔϜը໘ʹ໭Δ
26. ϦετΞͷςετ 9DPEF͔Β3VOΛߦ͏
27. ϦετΞͷςετ ௨ৗͰ͋Ε͹ॳظը໘͔Β࢝· Δͱ͜Ζɺઌఔͷଓ͖ͷϞʔμ ϧը໘͔ΒΞϓϦ͕࢝·Δ
28. ͔͠͠
29. ໊લ
    ೔޲ڧ
30. ॴଐ
    גࣜձࣾ"NB[JB
31. w 
    #-&ͰJ04"OESPJEؒͰͦͦ͜͜ େ͖ͳαΠζͷσʔλ௨৴Λ࣮ݱ͢Δ
    -$"1΋͋ΔΑ
    w 
    ͋ͳͨͷ஌Βͳ͍࿈བྷઌͷੈք
    w 
    ৄղ4UPSZCPBSE
32. झຯ
    ύϯ԰८Γ
33. ϦετΞͷςετ ϗʔϜը໘ʹ໭ͬͨޙɺ࠶౓9DPEF
    3VO
34. ը໘ભҠ͸อͨΕ͍ͯΔ͕ɺೖ ྗͨ͠σʔλ͕ফ͍͑ͯΔ
35. /4$PEFS
36. 7JFX$POUSPMMFSͷσʔλ෮ݩͷ࢓૊Έ w ϦετΞͰ෮ݩ͞ΕΔͷ͸4UPSZCPBSE্ʹઃఆͯ͋͠ΔσʔλͷΈ
    w ͭ·Γɺ4UPSZCPBSEͷσʔλҎ֎͸͍࣋ͬͯͳ͍ͷͰɺޙ͔Βೖྗ ͨ͠ςΩετσʔλ͸͍࣋ͬͯͳ͍
    w 4UPSZCPBSEҎ֎ͷσʔλΛ࣋ͨͤΔ͜ͱ͕ඞཁ
    w ͦͷσʔλͷอ࣋ઌ͕/4$PEFS
37. $PEFS΁ͷσʔλ௥Ճ w 6*7JFX$POUSPMMFSFODPEF3FTUPSBCMF4UBUF
    w ϗʔϜը໘ʹભҠ͢Δͱ͖ͳͲʹݺ͹ΕΔ
    w $PEFSʹର͠ɺ֤छFODPEF ͰύϥϝʔλΛอଘ͓ͯ͘͠
    w 6*7JFX$POUSPMMFSEFDPEF3FTUPSBCMF4UBUF
    w ֤छEFDPEF ͰɺFODPEF3FTUPSBCMF4UBUFͰอଘ͓͍ͯͨ͠σʔλΛ औಘ͢Δ
38. $PEFS΁ͷσʔλ௥Ճɺ෮ݩ class HobbyViewController: UIViewController { @IBOutlet weak var textField: UITextField! override func encodeRestorableState(with coder: NSCoder) { super.encodeRestorableState(with: coder) coder.encode(textField.text, forKey: "textFieldText") } override func decodeRestorableState(with coder: NSCoder) { super.decodeRestorableState(with: coder) textField.text = coder.decodeObject(forKey: "textFieldText") as? String } }
39. ࠶౓֬ೝ
40. ໊લ
    ೔޲ڧ
41. ॴଐ
    גࣜձࣾ"NB[JB
42. w 
    #-&ͰJ04"OESPJEؒͰͦͦ͜͜ େ͖ͳαΠζͷσʔλ௨৴Λ࣮ݱ͢Δ
    -$"1΋͋ΔΑ
    w 
    ͋ͳͨͷ஌Βͳ͍࿈བྷઌͷੈք
    w 
    ৄղ4UPSZCPBSE
43. झຯ
    ύϯ԰८Γ
44. ϦετΞͷςετ ϗʔϜը໘ʹ໭ͬͨޙɺ࠶౓9DPEF
    3VO
45. w 
    #-&ͰJ04"OESPJEؒͰͦͦ͜͜ େ͖ͳαΠζͷσʔλ௨৴Λ࣮ݱ͢Δ
    -$"1΋͋ΔΑ
    w 
    ͋ͳͨͷ஌Βͳ͍࿈བྷઌͷੈք
    w 
    ৄղ4UPSZCPBSE
46. ·ͱΊ w 6*"QQMJDBUJPO%FMFHBUFͰঢ়ଶͷอଘͱ෮ݩΛ༗ޮʹ͢Δ
    w ෮ݩ͍ͨ͠7JFX$POUSPMMFSʹରͯ͠3FTUPSBUJPO
    *%Λઃఆ͢Δ
    w /4$PEFSʹɺඞཁͳσʔλΛอଘ͠ɺ෮ݩͷλΠϛϯάͰ/4$PEFS͔Β σʔλΛऔಘ͢Δ
47. ࠓ·Ͱͷ͜ͱ͸๨Ε͍ͯͩ͘͞
48. 4UPSZCPBSEͷϦετΞ w ΞϓϦ͕4DFOF%FMFHBUFʹରԠ͍ͯ͠Δ৔߹͸͜ͷϦετΞ͕ಈ͔ͳ͍
    w ผͳରԠΛ͢Δඞཁ͕͋Δ
49. /46TFS"DUJWJUZ
50. ΞϓϦͷঢ়ଶͷอଘͱ෮ݩ w /46TFS"DUJWJUZΛอଘ͢Δ
    w ىಈ࣌ɺ/46TFS"DUJWJUZ͔ΒσʔλΛ෮ݩ͢Δ
51. /46TFS"DUJWJUZͷอଘ
52. *OGPQMJTUͷฤू w *OGPQMJTUʹ/46TFS"DUJWJUZ5ZQFTΛ௥Ճ͢Δ
    w "SSBZ4USJOH
53. /46TFS"DUJWJUZͷอଘ w /46TFS"DUJWJUZͷอଘͷλΠϛϯά͸ɺ7JFX$POUSPMMFSͷ WJFX%JE"QQFBSҎ߱ʹߦ͏
54. func updateUserActivity() { // ݱࡏͷγʔϯͷUserActivityͷऔಘ ͳ͚Ε͹࡞Δ var currentUserActivity = view.window?.windowScene?.userActivity if currentUserActivity == nil { currentUserActivity = NSUserActivity(activityType: "com.example.staterestore.mainActivity") } // UserActivityʹσʔλΛ٧ΊΔ currentUserActivity?.title = "λΠτϧ" currentUserActivity?.targetContentIdentifier = "unique id" currentUserActivity?.addUserInfoEntries(from: ["key1": "value1"]) currentUserActivity?.addUserInfoEntries(from: ["key2": 2]) // ݱࡏͷγʔϯʹUserActivityΛ໭͢ view.window?.windowScene?.userActivity = currentUserActivity }
55. /46TFS"DUJWJUZͷอଘ w ݱࡏͷγʔϯ͔Β/46TFS"DUJWJUZΛऔΓग़͢
    w WJFXXJOEPX XJOEPX4DFOF VTFS"DUJWJUZ͔Βݱࡏͷ/46TFS"DUJWJUZΛऔΓग़͢
    w OJMͷ৔߹ɺ/46TFS"DUJWJUZΛ࡞੒͢Δ
    w BDUJWJUZ5ZQFʹ͸ઌఔ*OGPQMJTUͰઃఆͨ͠΋ͷΛ࢖͏
    w /46TFS"DUJWJUZʹର͠ɺ෮ݩʹඞཁͳ৘ใΛ٧ΊΔʢޙड़ʣ
    w ৘ใΛ٧ΊͨޙɺWJFXXJOEPX XJOEPX4DFOF VTFS"DUJWJUZʹ/46TFS"DUJWJUZΛฦ ͢
56. /46TFS"DUJWJUZʹઃఆ͢Δ৘ใ w UJUMF
    w UBSHFU$POUFOU*EFOUJ fi FS
    w VTFS*OGP
    BEE6TFS*OGP&OUSJFT
    w ෮ݩʹඞཁͳ஋Λ٧ΊΔ
57. /46TFS"DUJWJUZΛอଘ͢ΔλΠϛϯά
    
    VQEBUF6TFS"DUJWJUZ Λ࣮ߦ͢ΔλΠϛϯάྫ w WJFX%JE"QQFBS
    w ֤छσʔλ͕มΘͬͨͱ͖
    w ฤू͞ΕͨςΩετ
    w Ϣʔβʔ͕બ୒தͷΞΠςϜͷมߋ
58. ϗʔϜը໘ભҠ࣌ʹ/46TFS"DUJWJUZΛอଘ w 4DFOF%FMFHBUFʹTUBUF3FTUPSBUJPO"DUJWJUZ GPS Λ࣮૷͢Δ
    w 7JFX$POUSPMMFSͰઃఆ͍ͯͨ͠6TFS"DUJWJUZΛฦ͢
    w લड़ͷॲཧΛߦͳ͍ͬͯΕ͹ɺTDFOFVTFS"DUJWJUZΛฦ͚ͩ͢Ͱ0,
59. func stateRestorationActivity(for scene: UIScene) -> NSUserActivity? { scene.userActivity }
60. ΞϓϦͷ෮ݩ
61. ΞϓϦͷ෮ݩ w TDFOF @
    TDFOF
    6*4DFOF
    XJMM$POOFDU5P
    TFTTJPO
    6*4DFOF4FTTJPO
    PQUJPOT
    DPOOFDUJPO0QUJPOT
    6*4DFOF$POOFDUJPO0QUJPOT
    
    w ΞϓϦىಈͷλΠϛϯάͰɺTFTTJPOTUBUF3FTUPSBUJPO"DUJWJUZΛ֬ೝ͢ Δ
    w TUBUF3FTUPSBUJPO"DUJWJUZͰอଘ͍ͯͨ͠/46TFS"DUJWJUZ͕औಘͰ͖Δ
    w ը໘ભҠͳͲ͸ࣗ෼Ͱߏங͢Δඞཁ͕͋Δ
    w 6TFS*OGPͷઃܭ͕ඞཁ
62. guard let activity = session.stateRestorationActivity else { return } if activity.activityType == "com.example.staterestore.mainActivity" { let storyboard = UIStoryboard(name: "Main", bundle: .main) if let userInfo = activity.userInfo { // userInfoͷ಺༰Ͱ໨తͷViewControllerΛ෮ݩ͢Δ let detailParentViewController = storyboard.instantiateViewController(withIdentifier: "DetailParentViewController") detailParentViewController.hoge = userInfo[“detailParentViewControllerValue"] // ը໘ભҠΛ෮ݩ͢Δ(ྫͱͯ͠NavigationControllerͷ৔߹) if let navigationController = window?.rootViewController as? UINavigationController { navigationController.pushViewController(detailParentViewController, animated: false) } } }
63. 4XJGU6*ͰͷϦετΞ
64. 4DFOF4UPSBHF
65. 4DFOF4UPSBHF struct ContentView: View { @State private var isPresented: Bool = false var body: some View { VStack { Button(action: { isPresented.toggle() }) { Text("Button") } } .sheet(isPresented: $isPresented, content: { Text("present") }) } } 4IFFUද੍ࣔޚΛߦ͏JT1SFTFOUFEΛϦετΞର৅ʹؚΊͯɺ࣍ճىಈ࣌ʹγʔτͷ 1SFTFOUঢ়ଶΛอͭʹ͸ʁ
66. 4DFOF4UPSBHF struct ContentView: View { @SceneStorage("ContentView.isPresented") private var isPresented: Bool = false var body: some View { VStack { Button(action: { isPresented.toggle() }) { Text("Button") } } .sheet(isPresented: $isPresented, content: { Text("present") }) } } !4UBUFΛ!4DFOF4UPSBHFʹม͑Δͱɺ࣍ճىಈ࣌΋஋͕อͨΕΔ
    Ωʔ໊͸ϢχʔΫʹ͢Δ
67. 4XJGU6* /46TFS"DUJWJUZ
68. struct ContentView: View { @State private var selectedTitle: Book? = nil var body: some View { NavigationView { List(bookList) { book in NavigationLink(destination: SwiftUIView(book: $selectedTitle), tag: book, selection: $selectedTitle, label: { Text(book.title) }) } .navigationTitle(Text("Ն໨ᕸੴ")) } .onContinueUserActivity("app.hyuga.SwiftUIActivity.restore", perform: { userActivity in selectedTitle = try! userActivity.typedPayload(Book.self) }) } } struct Book: Identifiable, Codable, Hashable { var id: String { title } let title: String let contents: String } τοϓϖʔδͷ7JFXʹPO$POUJOVF6TFS"DUJWJUZΛ࣮૷
    VTFS"DUJWJUZ͔Β஋Λ΋Βͬͯ4UBUFΛߋ৽͢ΔΑ͏ʹ͓ͯ͘͜͠ͱͰɺ"DUJWJUZىಈ࣌ʹ௚઀/BWJHBUJPO-JOL͕࡞ಈ͢Δ
69. struct SwiftUIView: View { @Binding var book: Book? var body: some View { Text(book?.contents ?? "") .userActivity("app.hyuga.SwiftUIActivity.restore", { activity in let returnBook: Book if let activityBook = try? activity.typedPayload(Book.self) { returnBook = activityBook } else { returnBook = book! } activity.title = returnBook.title activity.targetContentIdentifier = returnBook.id activity.isEligibleForSearch = true activity.userInfo = ["title":returnBook.title, "contents": returnBook.contents] }) .navigationTitle(book?.title ?? "") } } VTFS"DUJWJUZΛ࣮૷ͯ͠ɺBDUJWJUZ͕͋Δ͜ͱΛ஌ΒͤΔ
    JT&MJHJCMF'PS4FBSDIΛUSVFʹͯ͠ɺ4QPUMJHIUݕࡧ͔Β"DUJWJUZ͕ىಈͰ͖ΔΑ͏ʹ͓ͯ͘͠
    
70. 4XJGU6*
    /46TFS"DUJWJUZ εϙοτϥΠτݕࡧͰ௚઀ɺຊ Λ։͘͜ͱ͕ՄೳʹͳΔ
71. ࢀߟϦϯΫ w 3FTUPSJOH
    :PVS
    "QQ`T
    4UBUF
    w IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOVJLJU VJWJFXDPOUSPMMFSSFTUPSJOH@ZPVS@BQQ@T@TUBUF
    w 3FTUPSJOH
    :PVS
    "QQ`T
    4UBUF
    XJUI
    4XJGU6*
    w IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOVJLJU WJFX@DPOUSPMMFSTSFTUPSJOH@ZPVS@BQQ@T@TUBUF@XJUI@TXJGUVJ