How to make and publish a Swift playground book for iPad

Transcript

1. Χϝϥ͔Βͷը૾ΛϦΞϧλΠϜʹ͍͡ΔPlayPixels Tech. Yuichi Yoshida Senior researcher, DENSO IT Laboratory, Inc.

   #iOSDC2018 @sonson_twit © 2014 DENSO IT Laboratory, Inc., All rights reserved. Redistribution or public display not permitted without written permission from DENSO IT Laboratory, Inc. Swift Playgrounds Bookͷ࡞Γํͱ഑Γํ

2. ࣗݾ঺հ • sonson • twitter: sonson_twit • github: sonsongithub •

   portfolio • 2tchɾɾɾଟ෼ɼࣙΊΔ • numsw • iOS11 Programming Book(ൃചத) • ࢓ࣄ(computer vision, machine learning) • ը૾ೝࣝɾݕࡧٕज़ • ࠷ۙ͸σʔλαΠΤϯεతͳ͜ͱ΋

3. $PSF
   .-
   ͱ$SFBUF
   .-ʹ ͍ͭͯॻ͘Α

4. ࠓ೔ͷ໨త

5. Swift Playgrounds

6. None

7. σϞ • AppleͷσϞ

8. ࠓ೔ͷ͓࿩ • ໨త • iPadʹࣗ෼޷ΈͷSwift coding؀ڥΛ࡞Δ • ͦ͏͍͏؀ڥΛΈΜͳͰެ։͋ͬͯ͠ɼָ͠Ή • ࡞Γํͱެ։ํ๏

   • Appleۘ੡ͷςϯϓϨʔτʹΑΔ࡞ΓํΛ঺հ • ެ։Ͱ͖ΔΜͰ͢Αɼ͜Ε͕ɽ • Χϝϥͷը૾ॲཧΛ͢Δαϯϓϧ • ը૾ॲཧͷࠜװΛ஌ͬͯ΋Β͏

9. ͜͏͍͏ͷΛΈΜͳͰ • ର࿩ʢ͓͢͢Ίʣ • Binary searchͷσϞ • ֆจࣈॲཧͷσϞ • numsw

   - ઢܗ୅਺ • PlayPixelsʢࠓ೔ͷϝΠϯσΟογϡʣ

10. ͍͍ͱ͜Ζ • ϝΠϯͷ໨త͸ڭҭΒ͍͠ • Ͱ΋Ͷ͐ɾɾίϯςϯπ࡞Δͷେม • iPadͰಈ͘ʂʂʂ • Ͳ͜Ͱ΋ίʔυ͕ॻ͚Δ •

    ͓खܰɼ͔ͬ͜Α͘σϞͰ͖Δ • ͲΜͲΜਐԽ͍ͯ͠Δ • Χϝϥ͕࢖͑ΔΑ͏ʹͳͬͨʂ • Bluetooth͕࢖͑ΔΑ͏ʹͳͬͨʂ

11. ͭΒ͍ͱ͜Ζ • ϑϨʔϜϫʔΫ΍ϥΠϒϥϦ͕࢖͑ͳ͍ • ͢΂ͯιʔείʔυ͸Φʔϓϯʹͳͬͯ͠·͏ • σόοά͕େม • Ϛγʹ͸ͳ͖ͬͯͨ •

    Apple΍LEGOͷίϯςϯπ͕͗͢͢͝Δ • ૉਓ͕࡞Δͱɼ൵͍͠ɾɾɾɾ

12. PlaygroundBookͷ࡞Γํ

13. PlaygroundBook

14. Playgroundbookͷߏ੒ ├── Chapters │ └── Chapter1.playgroundchapter │ ├── Manifest.plist │

    └── Pages │ ├── Basic.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ ├── Binarize.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ └── Filter.playgroundpage │ ├── Contents.swift │ ├── LiveView.swift │ └── Manifest.plist ├── Manifest.plist ├── PrivateResources │ ├── Base.lproj │ │ └── LiveView.storyboard │ ├── en.lproj │ │ └── ManifestPlist.strings │ └── icon.png └── Sources ├── LiveViewController.swift └── LiveViewSupport.swift

15. ֓ཁ -JWF7JFXTXJGU $POUFOUTTXJGU

16. ࡞Γํ • AppleͷςϯϓϨʔτΛ࢖͏ʢమଇʣ • Swift Playgrounds Author Template for Xcode

    9.3Λσ ϕϩούʔαΠτ͔Βμ΢ϯϩʔυ

17. ·ͣ͸ઃఆ • README.mdͷ”First Step”ʹै͍ɼϓϩδΣΫτͷ໊લ ͱ͔Λมߋ͢Δ • ద౰ʹ΍Δͱ໘౗ष͍͜ͱʹͳΔͷͰ஫ҙ • AppleͷςϯϓϨ͸͔ͳΓνϡʔϯ͞ΕͯΔɾɾɾʁ

18. ϓϩδΣΫτͷ ໊લͳͲͷม਺ ·ͣಡΉ
    Ͱͳ͍ͱϋϚΔ γϛϡϨʔλ্Ͱ#MVFUPPUI
    ͳͲΛ࠶ݱ͢ΔͨΊͷπʔϧ΍-JC γϛϡϨʔλΞϓϦຊମ 1MBZHSPVOE#PPL ຊମ

19. Swift Playgrounds Author Template • ΞϓϦͱͯ͠BookΛಈ͔͠ɼσόοά͠΍͘͢ • Bluetooth౳ͷUIΛΤϛϡϨʔτ • ϏϧυεΫϦϓτ΋ࠐΈ

    • σόοά • iOS12ͰSwift PlaygroundsͰNSLogΛ࣮ߦͯ͠΋Կ ΋දࣔ͞Εͳ͍ɾɾɾɾ • ͜ͷςϯϓϨʔτ͕།Ұͷ։ൃ؀ڥɾɾɾɾ

20. λʔήοτ
    4XJGU
    1MBZHSPVOE
    #PPL

21. λʔήοτ
    #PPLͷγϛϡϨʔλͱͯ͠ͷΞϓϦ

22. λʔήοτ
    ΞϓϦͷͨΊʹίʔυΛ-JCʹ

23. -JWF7JFX5FTUBQQͷͨΊͷ
    ϑϨʔϜϫʔΫ

24. ͷத਎

25. Playgroundbookͷߏ੒ ├── Chapters │ └── Chapter1.playgroundchapter │ ├── Manifest.plist │

    └── Pages │ ├── Basic.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ ├── Binarize.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ └── Filter.playgroundpage │ ├── Contents.swift │ ├── LiveView.swift │ └── Manifest.plist ├── Manifest.plist ├── PrivateResources │ ├── Base.lproj │ │ └── LiveView.storyboard │ ├── en.lproj │ │ └── ManifestPlist.strings │ └── icon.png └── Sources ├── LiveViewController.swift └── LiveViewSupport.swift

26. Playgroundbookͷߏ੒ ├── Chapters │ └── Chapter1.playgroundchapter │ ├── Manifest.plist │

    └── Pages │ ├── Basic.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ ├── Binarize.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ └── Filter.playgroundpage │ ├── Contents.swift │ ├── LiveView.swift │ └── Manifest.plist ├── Manifest.plist ├── PrivateResources │ ├── Base.lproj │ │ └── LiveView.storyboard │ ├── en.lproj │ │ └── ManifestPlist.strings │ └── icon.png └── Sources ├── LiveViewController.swift └── LiveViewSupport.swift ຊମ

27. Playgroundbookͷߏ੒ ├── Chapters │ └── Chapter1.playgroundchapter │ ├── Manifest.plist │

    └── Pages │ ├── Basic.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ ├── Binarize.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ └── Filter.playgroundpage │ ├── Contents.swift │ ├── LiveView.swift │ └── Manifest.plist ├── Manifest.plist ├── PrivateResources │ ├── Base.lproj │ │ └── LiveView.storyboard │ ├── en.lproj │ │ └── ManifestPlist.strings │ └── icon.png └── Sources ├── LiveViewController.swift └── LiveViewSupport.swift ϖʔδ ࠷খ୯Ґ

28. Playgroundbookͷߏ੒ ├── Chapters │ └── Chapter1.playgroundchapter │ ├── Manifest.plist │

    └── Pages │ ├── Basic.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ ├── Binarize.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ └── Filter.playgroundpage │ ├── Contents.swift │ ├── LiveView.swift │ └── Manifest.plist ├── Manifest.plist ├── PrivateResources │ ├── Base.lproj │ │ └── LiveView.storyboard │ ├── en.lproj │ │ └── ManifestPlist.strings │ └── icon.png └── Sources ├── LiveViewController.swift └── LiveViewSupport.swift ֤ϖʔδͷઃఆ

29. Playgroundbookͷߏ੒ ├── Chapters │ └── Chapter1.playgroundchapter │ ├── Manifest.plist │

    └── Pages │ ├── Basic.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ ├── Binarize.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ └── Filter.playgroundpage │ ├── Contents.swift │ ├── LiveView.swift │ └── Manifest.plist ├── Manifest.plist ├── PrivateResources │ ├── Base.lproj │ │ └── LiveView.storyboard │ ├── en.lproj │ │ └── ManifestPlist.strings │ └── icon.png └── Sources ├── LiveViewController.swift └── LiveViewSupport.swift ຊͷߏ੒

30. Playgroundbookͷߏ੒ ├── Chapters │ └── Chapter1.playgroundchapter │ ├── Manifest.plist │

    └── Pages │ ├── Basic.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ ├── Binarize.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ └── Filter.playgroundpage │ ├── Contents.swift │ ├── LiveView.swift │ └── Manifest.plist ├── Manifest.plist ├── PrivateResources │ ├── Base.lproj │ │ └── LiveView.storyboard │ ├── en.lproj │ │ └── ManifestPlist.strings │ └── icon.png └── Sources ├── LiveViewController.swift └── LiveViewSupport.swift Ϧιʔε

31. Playgroundbookͷߏ੒ ├── Chapters │ └── Chapter1.playgroundchapter │ ├── Manifest.plist │

    └── Pages │ ├── Basic.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ ├── Binarize.playgroundpage │ │ ├── Contents.swift │ │ ├── LiveView.swift │ │ └── Manifest.plist │ └── Filter.playgroundpage │ ├── Contents.swift │ ├── LiveView.swift │ └── Manifest.plist ├── Manifest.plist ├── PrivateResources │ ├── Base.lproj │ │ └── LiveView.storyboard │ ├── en.lproj │ │ └── ManifestPlist.strings │ └── icon.png └── Sources ├── LiveViewController.swift └── LiveViewSupport.swift Ұ൪େ੾ ڞ௨ͷΫϥεͱ͔

32. playgroundpageͷߏ੒ཁૉ • LiveView.swift • Contents.swift • Manifest.plist

33. LiveView.swift • LiveView.swiftʹॻ͘͜ͱ͸͋Μ·Γͳ͍ • LiveViewControllerΛ͜͜Ͱੜ੒ • receiveͰίϯτϩʔϥ͔ΒσʔλΛ͏͚ͱΓඳը • ॏཁͳͷ͸ɼLiveViewControllerͷ࣮૷ import

    UIKit import PlaygroundSupport PlaygroundPage.current.liveView = sharedLiveViewController

34. Contents.swift • ίʔσΟϯάʹؔ͢Δίϝϯτ΍ώϯτɼεέϧτϯίʔυ • ษڧͱͯ͠ͷίϯςϯπ͸ͪ͜Β͕ओ //#-hidden-code import UIKit import PlaygroundSupport

    //#-end-hidden-code func process(input: UnsafePointer<CUnsignedChar>, output: inout [CUnsignedChar], width: Int, height: Int, bytesPerPixel: Int) { //#-editable-code // write your own code //#-end-editable-code } //#-hidden-code class Listener: PlaygroundRemoteLiveViewProxyDelegate { func remoteLiveViewProxy(_ remoteLiveViewProxy: PlaygroundRemoteLiveViewProxy, received message: PlaygroundValue) { // handle message from LiveViewController } } let listener = Listener() if let proxy = page.liveView as? PlaygroundRemoteLiveViewProxy { proxy.delegate = listener } //#-end-hidden-code

35. Manifest.plist - Page 1MBZHSPVOE-PHHJOH.PEF0⒎
    -JWF7JFX&EHF5P&EHF:&4

36. Manifest.plist - Page 1MBZHSPVOE-PHHJOH.PEF/PSNBM
    -JWF7JFX&EHF5P&EHF:&4

37. Manifest.plist - Page 1MBZHSPVOE-PHHJOH.PEF0⒎
    -JWF7JFX&EHF5P&EHF:&4

38. cutscenepageͷߏ੒ཁૉ • playgroundpageͱ͸ҟͳΓHTML΋දࣔՄೳ • ϑΥϧμ໊ɹ00.cutscenepage • Manifest.plistʹHTMLΛࢦఆ • PrivateResourcesʹݴޠ͝ͱʹHTMLΛ༻ҙ͢Δ •

    ίʔυෆཁͷϜʔϏʔͬΆ͍ͷʹ࢖͏Α͏ͩ

39. جຊίϯηϓτ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε

40. جຊίϯηϓτ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε

41. جຊίϯηϓτ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε 1SPYZ

42. ૹΔͱ͖͸྆ํͱ΋ಉ͡ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε 1SPYZ TFOE @
    NFTTBHF
    1MBZHSPVOE7BMVF

43. ૹड৴Ͱ͖Δܕ public enum PlaygroundValue { case array([PlaygroundSupport.PlaygroundValue]) case dictionary([String :

    PlaygroundSupport.PlaygroundValue]) case string(String) case data(Data) case date(Date) case integer(Int) case floatingPoint(Double) case boolean(Bool) }

44. ૹΔͱ͖͸྆ํͱ΋ಉ͡ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε 1SPYZ TFOE @
    NFTTBHF
    1MBZHSPVOE7BMVF

45. ड৴͚͕ͩҟͳΔ $POUFOUͷϓϩηε class Listener: PlaygroundRemoteLiveViewProxyDelegate { var pixelBuffer24bit: [CUnsignedChar]? func

    remoteLiveViewProxy(_ remoteLiveViewProxy: PlaygroundRemoteLiveViewProxy, received message: PlaygroundValue) { // handle a message } func remoteLiveViewProxyConnectionClosed(_ remoteLiveViewProxy: PlaygroundRemoteLiveViewProxy) { } } let listener = Listener() if let proxy = page.liveView as? PlaygroundRemoteLiveViewProxy { proxy.delegate = listener }

46. ૹΔͱ͖͸྆ํͱ΋ಉ͡ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε 1SPYZ TFOE @
    NFTTBHF
    1MBZHSPVOE7BMVF

47. ड৴͚͕ͩҟͳΔ -JWF7JFXͷϓϩηε @objc(Book_Sources_LiveViewController) public class LiveViewController: UIViewController, PlaygroundLiveViewMessageHandler, PlaygroundLiveViewSafeAreaContainer {

    public func receive(_ message: PlaygroundValue) { update(message) } }

48. جຊίϯηϓτ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε 1SPYZ

49. PlayPixelsͷ৔߹ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε 1SPYZ ը૾ॲཧ $BNFSB ͜ͷॲཧͷίʔυ
    $POUFOUTTXJGU Ωϟϓνϟͨ͠
    ը૾Λ%BUBʹ

50. PlayPixelsͷ৔߹ -JWF7JFXͷϓϩηε $POUFOUͷϓϩηε 1SPYZ %BUBʹ
    ύοΩϯά 6**NBHFʹ 6**NBHF7JFXʹηοτ

51. LiveViewTest.app • UIApplication౳Λվ଄ʁ • LiveViewControllerͷಈ࡞֬ೝ༻ͷΞϓϦ • Swift Playgroundsઐ༻ͷUIͷςετ • ͦͷͨΊͷBluetoothͳͲͷϑϨʔϜϫʔΫ

    • Contents.swiftͷ୅ཧίʔυͷ࣮૷͕ඞཁ ࢖͏΂͖ɽσόοάͰࢮͶΔ #if LiveViewTestApp // γϛϡϨʔλͰಈ͔͢ͱ͖͸ɼϝιουΛ௚Ͱୟ͖ɼContents.swiftͷ୅ΘΓΛ࣮ߦ self.update(value) #else // PlaygroundͰಈ͔͢ͱ͖͸ɼproxyܦ༝ͰContents.swiftʹσʔλΛૹΔ self.send(value) #endif

52. Playground Book • PlaygroundSupportͱݺ͹ΕΔϞδϡʔϧ͕৭ʑػೳΛఏڙ • ςϯϓϨʔτͰγϛϡϨʔγϣϯՄೳ • PlaygroundValueܕͰ౉ͤΔσʔλͷܕͷόϦΤʔγϣϯ͕গͳ͍ • ؔ਺ͱ͔౉ͤͳ͍

    • LiveViewTest.app͸ɼContents.swiftͱແؔ܎ • ίϯςϯπΛ͏·͘දࣔͤ͞ΔͨΊͷςετίʔυ͕ඞཁ

53. ։ൃͷྲྀΕʁ • TemplateΛฤू • LiveViewControllerΛ࣮૷ • AppDelegate.swiftͰίϯςϯπΛදࣔ͢ΔίʔυΛ ॻ͘(Contents.swift) • iPad࣮ػͰɼLiveViewTest.appΛςετ

    • PlaygroundBookΛϏϧυ • AirDropͰiPad࣮ػʹPlaygroundBookΛૹΔ • Swift PlaygroundsͰ࣮ߦ͢Δ

54. υΩϡϝϯτ • Playground Book Format Reference • Swift PlaygroundsͷϓϩδΣΫτࣗମ͕ιʔεͷๅݿ

55. Furthermore, • Contents.swiftͷৄ͍͠ઃఆ • ίϯςϯπ࡞ΓͶ • ଟݴޠԽʢَ໳ʣ • Key-value store΋͋Δ

    • AssesmentStatus • ϢʔβͷਐḿධՁ༻ͷ࢓૊Έʁ

56. PlaygroundBookΛެ։͢Δ

57. ެ։ํ๏ • ࠷ۙ΍ͬͱެ։Ͱ͖ΔΑ͏ʹͳͬͨ • Ϣʔβ͕Swift Playgrounds͔ΒfeedΛొ࿥Մೳ • ϒϥ΢β͔Βొ࿥͢Δ͜ͱ΋Ͱ͖Δ

58. खॱ • ެ։ͷͨΊͷjsonϑΝΠϧ(feed)Λ࡞Δ • BookΛෳ਺ݸऩΊΒΕΔ • ϋϚΔϙΠϯτ • λΠτϧͱ໊લ͕Ұக •

    λΠτϧͱղౚޙͷ໊લ͕Ұக • identifier͕Ұக

59. feed { "title": "sonson", "publisherName": "Yuichi Yoshida", "feedIdentifier": "com.sonson.playground", "contactURL":

    "mailto:hoge@hoge.com", "formatVersion": "1.0", "documents": [ { "title": "PlayPixels", "overviewSubtitle": "To be written.", "detailSubtitle": "αϒλΠτϧৄࡉ", "description": "ৄ͍͠આ໌", "contentIdentifier": "com.sonson.playground.PlayPixels", "contentVersion": "1.0", "url": "https://sonson.jp/playgrounds/playpixels/PlayPixels.playgroundbook.zip", "publishedDate": "2018-05-18T12:00:00+00:00", "lastUpdatedDate": "2018-05-18T12:00:00+00:00", "thumbnailURL": "playpixels/thumbnail.png", "bannerImageURL": "playpixels/thumbnail.png", "additionalInformation": [ { "name": "Languages", "value": "English" } ], "previewImageURLs": [] } ] }

60. खॱ • ެ։ͷͨΊͷjsonϑΝΠϧ(feed)Λ࡞Δ • BookΛෳ਺ݸऩΊΒΕΔ • ϋϚΔϙΠϯτ • λΠτϧͱ໊લ͕Ұக •

    λΠτϧͱղౚޙͷ໊લ͕Ұக • identifier͕Ұக • feedʹࢦఆͨ͠ύεʹzipͰݻΊͨbookϑΝΠϧΛஔ͘ ├── feed.json ├── index.html └── playpixels ├── PlayPixels.playgroundbook.zip └── thumbnail.png

61. ϒϥ΢β͔ΒμΠϨΫτʹొ࿥ "https://developer.apple.com/ul/sp0?url=https://sonson.jp/playgrounds/feed.json"

62. https://sonson.jp/playgrounds/

63. Swift Playgrounds͕ىಈ

64. ొ࿥ɾɾɾɾײಈ

65. PlayPixelsͰֶͿը૾ॲཧͷجຊ

66. https://github.com/sonsongithub/PlayPixels

67. ը૾ॲཧͷجຊ 
    
    

68. ը૾ॲཧͷجຊ 
    
     
    
       

69. ը૾ॲཧͷجຊ 
    
     
    
       

70. ը૾ॲཧͷجຊ 
    
     
    
       

71. ৞ΈࠐΈԋࢉʔϑΟϧλ ೖྗը૾ ग़ྗը૾       

            

72. ϑΟϧλ         

73. ৞ΈࠐΈԋࢉʔϑΟϧλ ೖྗը૾ ग़ྗը૾       

                     

74. ৞ΈࠐΈԋࢉʔϑΟϧλ ೖྗը૾ ग़ྗը૾       

                      
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    º
    

75. ৞ΈࠐΈԋࢉʔϑΟϧλ ೖྗը૾ ग़ྗը૾       

                      

76. ৞ΈࠐΈԋࢉʔϑΟϧλ ೖྗը૾ ग़ྗը૾       

                       

77. ৞ΈࠐΈԋࢉʔϑΟϧλ ೖྗը૾ ग़ྗը૾       

                        

78. ৞ΈࠐΈԋࢉʔϑΟϧλ ೖྗը૾ ग़ྗը૾       

                          ϑΟϧλͷαΠζͰ
    ͪΐͬͱখ͘͞ͳΔ

79. ͜Ε͸ɾɾɾͲΜͳϑΟϧλʁ         

80. ࣮͸ ܀ాଟت෉ɺ੺ึতଠ࿠, ύλʔϯೝࣝ ૣҴాେֶߨٛ – ฏ੒18೥౓

81. ྲྀߦΓͷCNN Y. Lecun, L. Bottou, Y. Bengio and P. Haffner,

    "Gradient-based learning applied to document recognition," in Proceedings of the IEEE, vol. 86, no. 11, pp. 2278-2324, Nov. 1998. ͜ͷॏΈΛػցֶशͰಘΔ

82. ·ͱΊ • Swift playgroundsͷָ͠͞ • Swift Playgrounds Author TemplateΛ࢖͓͏ •

    Bookͷجຊ • Proxyϕʔεͷϓϩάϥϛϯά • Feedͷઃఆ • ެ։͸ɼPlayground.appͰͰ͖Δʂ • PlayPixelsͰֶͿɼը૾ॲཧͷجຊ