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WkWebViewのお話
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taminif
August 26, 2017
Programming
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WkWebViewのお話
Cocoa勉強会関西 #74で発表した資料です。
taminif
August 26, 2017
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Transcript
WKWebViewͷ͓ ୈ74ճ Cocoaษڧձؔ 2017/08/26 େౡ ޫو@sbntaminif
ࣗݾհ • ΣϒϦΦגࣜձࣾWEBΤϯδχΞ • ΞϓϦΤϯδχΞ ʢࣗশʣ • ීஈژͰಇ͍͍ͯ·͢
WKWebViewͱ
WKWebViewͱ • ΣϒίϯςϯπΛදࣔ͢ΔΦϒδΣΫτ • MacOS10.10/iOS8.0͔Β༻Մೳ • ಛఆͷΣϒαΠτΛಡΈࠐΉΑ͏ͳΞϓ ϦͳΜ͔·ͣ͜ΕΛ͏ͱࢥ͍·͢ɻ
ಛʹWEBΤϯδχΞʹ ೃછΈͷ͋ΔViewͩͱ ࢥ͍·͢
UIWebView͔Β มΘΔͷͰ͢
มΘΔͱʁ • iOS8.0·ͰΣϒίϯςϯπΛදࣔ͢ ΔViewʹUIWebViewͱ͍͏ͷ͕͋ͬͨ ͕ɺެࣜͷυΩϡϝϯτʹWKWebViewΛ ༻͢ΔΑ͏هࡌ͕͋Δ • ࠓճUIWebViewͱͷൺֱΛ͢ΔΘ͚Ͱ ͍͟͝·ͤΜ
WKWebViewͷ ਪ͠ϙΠϯτ
ͦͷ1 ᙱ͍ॴʹख͕ಧ͘ ૢ࡞
ᙱ͍ॴʹख͕ಧ͘ • ϩʔυͷ։࢝/ऴྃɺϖʔδͷਐΉ/Δͷ ૢ࡞͕ίʔυ্Ͱૢ࡞Մೳ • ಡΈࠐΈঢ়گϖʔδભҠϦετͷऔಘ͕ Մೳ • DelegateΛηοτ͢Δ͜ͱͰૢ࡞࣌ʹॲ ཧΛηοτՄೳ
ೋͭͷDelegate • WKUIDelegate • WKWebViewΛ࡞/ऴྃͨ͠λΠϛϯ άɺAlertͷUIܥͷૢ࡞Λ୲ • WKNavigationDelegate • ΣϒίϯςϯπͷಡΈࠐΈ࣌ͷૢ࡞Λ
୲
ಛʹਪ͠ͳͷ͕ WKNavigationDelegate
ਤͰઆ໌
ϒϥβʹΑΔHTTP௨৴ ϒϥβ αʔόʔ ϦΫΤετ Ϩεϙϯε ϦΫΤετϔομʔ ϦΫΤετϘσΟ Ϩεϙϯεϔομʔ ϨεϙϯεϘσΟ
WKWebViewʹΑΔHTTP௨৴ ϒϥβ αʔόʔ ϦΫΤετ Ϩεϙϯε EFDJEF1PMJDZ'PS OBWJHBUJPO"DUJPO EJE4UBSU1SPWJTJPOBM/BWJHBUJPO ϦμΠϨΫτ࣌͜͜ͰΔ EJE3FDFJWF4FSWFS3FEJSFDU'PS1SPWJTJPOBM/BWJHBUJPO
ϦμΠϨΫτ࣌ͷΈ EJE'BJM1SPWJTJPOBM/BWJHBUJPO Τϥʔൃੜ࣌ͷΈ EFDJEF1PMJDZ'PS OBWJHBUJPO3FTQPOTF EJE$PNNJU EJE'JOJTI EJE3FDFJWF શͯ8,/BWJHBUJPO%FMFHBUFͷؔ
WKWebViewʹΑΔHTTP௨৴ ϒϥβ αʔόʔ ϦΫΤετ Ϩεϙϯε EFDJEF1PMJDZ'PS OBWJHBUJPO"DUJPO EFDJEF1PMJDZ'PS OBWJHBUJPO3FTQPOTF EFDJEF1PMJDZ'PSͰ
ಡΈࠐΈΛڐՄ͢Δ͔Ωϟϯηϧ͢Δ͔Λ ઃఆͰ͖Δ ϦΫΤετͩͱVSMϑΥʔϜૹ৴ ϨεϙϯεͩͱϨεϙϯείʔυ.*.&λΠϓ ͰఆͰ͖Δ
ͦͷ2 JavaScriptͷ࣮ߦ
JavaScriptͷ࣮ߦ • ಡΈࠐΜͩΣϒίϯςϯπʹରͯ͠ ҙͷJavaScriptΛ࣮ߦͰ͖Δ • ElementΛऔಘ͠ɺσʔλΛSwiftଆͰ༻ ͢Δ͜ͱ͕Ͱ͖Δ
JavaScriptͷ࣮ߦλΠϛϯ άೋछྨ͋Γ·͢
ೋछྨͷ࣮ߦλΠϛϯά • WKWebViewੜޙɺWKWebView͕࣋ͭ evaluateJavaScriptͱ͍͏ؔ • WKWebViewConfigurationΛੜ͠ɺͦ ͜ʹJavaScriptΛηοτͯ͠WKWebView ͷੜʹ༻͢Δ͜ͱͰಡΈࠐΈ࣌ʢલ/ ޙʣʹ࣮ߦ
(JavaScriptͰ͕͢) WEBεΫϨΠϐϯά Έ͍ͨͳ͜ͱՄೳͰ͢
ͦͷ3 ಡΈࠐΜͩϦιʔεͷ දࣔ
ΣϒίϯςϯπΛදࣔ͢Δ ViewͳͷͰɺΣϒϖʔδΛ ಡΈࠐΉͷવͰ͕͢
ϩʔΧϧʹஔͨ͠HTMLΛ ಡΈࠐΈɺදࣔͤ͞Δ͜ͱ ՄೳͰ͢
ϩʔΧϧϑΝΠϧΛಡΈࠐΉ let termsOfUsePath = Bundle.main.path(forResource: "privacyPolicy.html", ofType: nil)! let termsOfUseHtmlData
= try! Data(contentsOf: URL(fileURLWithPath: termsOfUsePath)) termsOfUseHtml = String(data: termsOfUseHtmlData, encoding: String.Encoding.utf8) webView.loadHTMLString(termsOfUseHtml, baseURL: URL(string: TermsOfUseViewController.TERMS_OF_USE_URL)!) #VOEMFͰಡΈग़ͨ͠จࣈྻ Λ8,8FC7JFXʹϩʔυ
WKWebViewͷ ೦ϙΠϯτ
ͦͷ1 StoryboardະରԠ
StoryboardະରԠ • UIWebView͕͍ͬͯΔͨΊ͔ɺ StoryboardͰWKWebViewΛஔ͢Δ͜ ͱ͕Ͱ͖·ͤΜɻ
શͯίʔυͰରԠ͢Δ ඞཁ͕͋Δͷ ͪΐͬͱෆศͰ͢
ͩͬͨͷͰ͕͢ɻɻ
ͦͷ2 WebRTCʹରԠ͍ͯ͠ͳ͍ (?)
WebRTCͱ • W3C͕ఏএ͢ΔP2PϦΞϧλΠϜίϛϡχ έʔγϣϯΛ࣮ݱ͢Δٕज़ • ϓϥάΠϯͳ͠ͰϒϥβؒͷΓͱΓ͕Մ ೳ • ςΩετόΠφϦͳͲͷσʔλܗࣜө૾ ԻͳͲͷStreamܗࣜͷΓͱΓ͕Մೳ
ͦͦiOSʹ ରԠ͍ͯ͠Δͷ?
ݱ࣌ͰରԠ͍ͯ͠·ͤΜ • ChromeFireFoxͳͲChroniumϕʔεͷϒϥ βͰ͔࣮͠͞Ε͍ͯ·ͤΜͰͨ͠ɻ • iOSWebKitϕʔεͳͷͰະରԠͰ͕͢ɻɻ • iOS11ͰSafariʹ࣮͞ΕΔ͜ͱ͕༧ఆ͞Εͯ ͍·͢ʂ
Կ͕ඞཁͳͷ͔
σόΠεʹΞΫηε͢ΔͨΊͷ API(getUserMedia)͕ϒϥβʹ ࣮͞Ε͍ͯΔඞཁ͕͋Δ • ֎෦σόΠεʢΧϝϥ/ϚΠΫʣΛ༻͢Δڐ ՄΛϒϥβ͕͍࣋ͬͯΔ͔֬ೝ͠ɺͦͷ StreamΛऔಘͯ͠ฦ͠·͢ɻ • Safariʹ࣮͞ΕΔ͜ͱͰɺWebRTCʹରԠ ͠·͢ɻʢɿ͜Ε͚ͩඞཁͱ͍͏͜ͱͰ
ͳ͍Ͱ͢ʣ
ͨͩ͠ɺ೦ͳ͕Β
WKWebViewͰ ରԠ͞Εͳ͍Έ͍ͨͰ͢ • ͢ͰʹBeta൛Ͱࢼ͞Εͨํ͕͍Βͬ͠Ό͍· ͨ͠ https://stackoverflow.com/questions/45055329/ does-webkit-in-ios-11-beta-support-webrtc
·ͩBeta൛ͳͷͰਖ਼ࣜʹ Θ͔Γ·ͤΜ͕ɺରԠ͞Ε Δ͜ͱΛظ͍ͨ͠Ͱ͢
·ͱΊ
·ͱΊ WKWebViewศརʂʂ ͩͱࢥ͍·͢ɻɻ
࠷ޙʹએͰ͢ iOSDC 2017ʹొஃ͠·͢ʂ • ʮӳձαʔϏεͷͨΊʹ࡞ͨ͠ϏσΦ νϟοτΞϓϦͷٕज़ʯͱ͍͏ςʔϚͰ࠾ ͞Ε·ͨ͠ʂ • ΞϓϦͰWebRTCΛ༻ͯ͠ϏσΦ௨Λ ࣮ͨ͠ɺFirebaseͰνϟοτΛ࣮
ͨ͠ͱӡ༻ͰͷݟΛ͓͢͠Δ༧ఆͰ ͢ʂ
ͥͻདྷ͍ͯͩ͘͞ʂ
͋Γ͕ͱ͏͍͟͝·ͨ͠