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5分でわかるWebView+ViewGroupを実現するAOSPメールアプリの内部実装と ニ...
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ogapants
March 18, 2019
Technology
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5分でわかるWebView+ViewGroupを実現するAOSPメールアプリの内部実装と ニュースアプリへの応用 / Otemachi.apk02
Otemachi.apk #02
https://nikkei.connpass.com/event/120816/
ogapants
March 18, 2019
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Transcript
(5ͰΘ͔Δ) WebView+ViewGroupΛ࣮ݱ͢Δ AOSPϝʔϧΞϓϦͷ෦࣮ͱ χϡʔεΞϓϦͷԠ༻ 2019/03/18 Otemachi.apk #02 @ogapants
ࣗݾհ • ͓͕ͺΜ@ogapants • ຊܦࡁ৽ฉࣾ • DroidKaigi2019Ͱ30ͨ͠༰ͷॖ൛Ͱ͢
͍͖ͳΓͰ͕͢ • ͜͏͍͏ߏͷը໘ɺͲ͏ͬͯ εΫϩʔϧͤ͞·͔͢ʁ ViewGroup WebView ViewGroup
͍͖ͳΓͰ͕͢ • ScrollViewͰ ғͬͪΌ͍·ͤΜ͔ʁ WebView ScrollView? ViewGroup ViewGroup
͍͖ͳΓͰ͕͢ • ScrollViewWebViewΛೖΕΔ͜ͱΛఆͯ͠ ࡞͍ͬͯͳ͍ʂ by GoogleΤϯδχΞ
͜ͷൃදͰ͢͜ͱ • AOSPϝʔϧͰWebViewͲ͏ΘΕ͍ͯΔͷ͔ • Ͳ͏ܦΞϓϦʹԠ༻ͨ͠ͷ͔ • WebView+ViewGroupΛ࣮ݱ͢ΔͨΊͷࢦඪ
WebView+ViewGroupΛ ࣮ݱ͢ΔAOSPϝʔϧΞϓϦͷ ෦࣮
AOSPϝʔϧΞϓϦͰͷߏ ϔομʔViewGroup ίϯςϯπWebView ϑολʔViewGroup
AOSPϝʔϧΞϓϦͰͷߏ WebView in ScrollView AOSPϝʔϧΞϓϦ WebView ViewGroup ScrollView ViewGroup WebView
ViewGroup ViewGroup
AOSPϝʔϧΞϓϦͰͷߏ • WebViewͰεΫϩʔϧͤ͞Δ • ViewGroup࿈ಈ • ViewGroupͷߴ͞cssͰpadding WebView ViewGroup ViewGroup
padding padding
AOSPϝʔϧΞϓϦ͍͢͝
χϡʔεΞϓϦͷԠ༻
ϓϩμΫτೖ·ͰͷྲྀΕ • WebView in ScrollViewΛࣙΊΔඪ • AOSPʹࢀߟʹͳΔ࣮͕ͳ͍͔୳͢ • ෦࣮ΛಡΈਐΊΔ •
࠷ݶͰಈ͘ΞϓϦΛ࡞ͬͯݕূ • ϓϩμΫτʹೖ
ϓϩμΫτೖ • ϑολʔͷΈඞཁͳը໘͔Β࣮ࢪ WebView ϑολʔViewGroup
࣮ࡍͲ͏ͩͬͨͷ͔
࠾༻ͯ͠Α͔ͬͨ͜ͱ • ScrollView͔Β٫Ͱ͖ͨ • ඳը͕एׯૣ͘ͳͬͨ
࠾༻ͯ͠େมͩͬͨ͜ͱ • Մಡੑ͕Լ͕Γɺϝϯςίετ͕૿͑ͨ • ಋೖ͢Δ·Ͱ͕͔͔࣌ؒͬͨ
ਖ਼ؾܰʹਅࣅͮ͠Β͍…
͠WebView+ViewGroup͠ ͨ͘ͳͬͨΒʁ
͠ඞཁʹഭΒΕͨΒ… • WebViewΛΊΔʢ࠷ਪʣ • WebViewͷΈʹ͢Δʢڧ͘ਪʣ • AOSPϝʔϧํࣜΛࢀߟʹ͢Δʢਪʣ
͠ඞཁʹഭΒΕͨΒ… • https://github.com/angebagui/medium-textview/ https://github.com/m7mdra/HtmlRecycler ͷϥΠϒϥϦΛͬͯΈΔʢرʣ • ৽͍͠ΓํΛߟ͑Δʢେ݀ʣ • ScrollViewʹWebViewΛೖΕΔʢඇਪʣ
͍͞͝ʹ
·ͱΊ • AOSPݟͷմͳͷͰ͏·͘ར༻͠Α͏ • ࠷ݶͷ࣮Ͱ༷ࢠΛݟ࣮ͯફ͠Α͏ • ScrollViewͷதʹWebViewΛೖΕΔͷආ͚Α͏
ڵຯ࣋ͬͨํશ൛Λʂ https://bit.ly/2HmOv2V
࠾༻ͬͯ·͢ʂ https://s.nikkei.com/s_android