WKWebViewの知られざるプロパティ/ Unknown properties of WKWebView

https://dena.connpass.com/event/291447/

Transcript

1. 2023.08.24 @qmihara WKWebViewͷ ஌ΒΕ͟ΔϓϩύςΟ ެ։ SwiftWednesday
2. WKWebViewɺ ஌ͬͯ·͢ΑͶʁ
3. WKWebView.interactionState ஌ͬͯ·͔͢ʁ
4. https://developer.apple.com/documentation/webkit/wkwebview/3752236-interactionstate
5. “WebϏϡʔͰͷର࿩ͷݱࡏͷঢ়ଶΛΩϟϓνϟͯ͠ɺޙͰผ ͷWebϏϡʔʹͦͷঢ়ଶΛ෮ݩͰ͖ΔΑ͏ʹ͢ΔͨΊʹ࢖༻ ͢ΔΦϒδΣΫτɻ”
6. WebViewͷ ঢ়ଶͷอଘͱ෮ݩ
7. อଘ
8. ෮ݩ
9. Կ΋͠ͳ͍ͱ͜͏
10. ঢ়ଶͷอଘͱ෮ݩ Λ͢Δͱ͜͏
11. ؆୯Ͱ͢Ͷʂ😊
12. ͱ͜ΖͰɺ interactionStateͷਖ਼ମ͸ʁ
13. https://developer.apple.com/documentation/webkit/wkwebview/3752236-interactionstate Anyܕ…ͩͱ…ʁ
14. {length = 4073, bytes = 0x00000002 62706c69 73743030 d3010203 ... 00000000 00000f77 } ͱΓ͋͑ͣ ͦͷ··ग़ྗͯ͠ΈΔͱ (NS)DataΆ͋͞Γ
15. “nil” Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected character È at line 1" UserInfo={NSDebugDescription=Unexpected character È at line 1, kCFPropertyListOldStyleParsingError=Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected character '0x200' at line 1"
16. StringͰ΋ͳ͘ɺplistͰ΋ͳ͍
17. όΠφϦΤσΟλͰݟͯΈΑ͏
19. த਎͸ plist ͬΆ͍ʁ
21. ઌ಄4όΠτԿ͜Εʁ
22. ͪͳΈʹόΠφϦܗࣜͷplist͸͜͏ (UserDefaultsͷplist)
23. ઌ಄4όΠτ࡟ͬͯΈΔͱʁ
24. { IsAppInitiated = 1; RenderTreeSize = 1241; SessionHistory = { SessionHistoryCurrentIndex = 2; SessionHistoryEntries = ( …
26. ಡΈࠐΊͨʂ
27. https://github.com/WebKit/WebKit/blob/887ce26d210b05a9b5ebee1abc46da02901b8586/Source/ WebKit/UIProcess/mac/LegacySessionStateCoding.cpp#L503-L507
28. ਖ਼ମ͸ plist ͷόΠφϦσʔλ+ઌ಄4 όΠτʹόʔδϣϯ৘ใ
29. interactionState ͸ iOS 15 Ҏ্͔Β
30. iOS 15 ະຬ͸టष͍΍ΓํͰࣗ ෼ͰؤுΔ͔͠ͳ͍
31. Ͳ͏΍ͬͯʁ
32. https://github.com/mozilla-mobile/firefox-ios/wiki/History-Restoration-in-WKWebView-(and-Error-Pages) ࢀߟ৘ใ(Firefox for iOS)
33. Firefox for iOS ͷཤྺ؅ཧํ๏؆୯ࡶઆ໌ • WKWebView.backForwardList ͷத਎Λநग़͠ӬଓԽ • ෮ݩ࣌͸ϩʔΧϧHTMLϑΝΠϧΛ·ͣಡΈࠐ·ͤɺΫΤϦύϥϝʔλͰཤ ྺ৘ใΛ౉ͯͦ͠ΕΛ history.replaceState() ʹΑͬͯཤྺʹੵΜͰ͍͘
34. WKWebView ͷঢ়ଶͷอଘͱ෮ݩΛ࣮ݱ͍ͨ͠ͳ Βɺѱ͍͜ͱ͸ݴΘͳ͍ͷͰ Deplyment Target Λ iOS 15 ʹͯ͠ interactionState Λ࢖͓͏ ·ͱΊ
35. αϯϓϧ͸ͪ͜Β
36. ࿩ͯͨ͠ਓ • Kyusaku Mihara (@qmihara) • SkyLeapͷ։ൃͱϚωʔδϟʔ Λ΍͍ͬͯ·͢ • झຯ͸ࣸਅࡱӨ(📷SIGMA fp)ͱ ֨ήʔ
37. ͓͠·͍