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Optimistic Updatesで UXを向上させる / Improve UX with ...
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rockname
March 15, 2022
Technology
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Optimistic Updatesで UXを向上させる / Improve UX with Optimistic Updates
iOS Tech Talk【みてね x Mirrativ】
https://mirrativ.connpass.com/event/240385/
rockname
March 15, 2022
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Transcript
Optimistic UpdatesͰ UXΛ্ͤ͞Δ גࣜձࣾϛΫγΟ ΈͯͶࣄۀ෦ ϩΫωϜ @_rockname
mixi, Inc. ࣗݾհ ϩΫωϜ / rockname • ϛΫγΟͰʮՈΞϧόϜ ΈͯͶʯͱ͍͏ΞϓϦΛ ։ൃͯ͠Δ
• iOSϝΠϯɺAndroid, RailsͳͲॻ͍ͯΔ • εϚϒϥ͕͖
mixi, Inc. Optimistic Updatesͱ • ྫ͑ɺΈͯͶͰΞοϓϩʔυͨ͠ϝσΟΞΛ͓ؾʹೖΓʹՃͰ͖Δػೳ͕͋Γ·͢ • ී௨ʹ࣮͢ΔͳΒɺҎԼͷΑ͏ʹͳΔ͔ͱࢥ͍·͢
mixi, Inc. Optimistic Updatesͱ • ϦΫΤετͷ݁Ռ͕ฦΔલʹɺޭ͢ΔͱԾఆͯ͠UIΛઌʹߋ৽͢Δख๏ͷ͜ͱΛ Optimistic Updatesͱݺͼ·͢
mixi, Inc. Optimistic UpdatesͷՁ • Optimistic UpdatesͰɺϢʔβʔͷૢ࡞Λதஅͤ͞Δ͜ͱͳ͘γʔϜϨεͳମݧΛఏڙ ͠ଓ͚Δ͜ͱ͕Ͱ͖ΔͨΊɺUXΛ্ͤ͞·͢
mixi, Inc. ͪ͜Βͷهࣄ͕ඇৗʹࢀߟʹͳΓ·ͨ͠!!! https://kaminashi-developer.hatenablog.jp/entry/optimistic-update-in-spa UI͕ӕΛͭ͘ʁ UXσβΠϯʹ͓͚Δʮָ؍తͳߋ৽ʯͱSPAͰͷ࡞Γํ Χϛφγ։ൃऀϒϩά
۩ମతͳ࣮ྫ
mixi, Inc. ۩ମతͳ࣮ྫ - ͓ؾʹೖΓ • ઌͷྫͰऔΓ্͛ͨɺ͓ؾʹೖΓػೳʹ͓͚Δ Optimistic Updatesͷ۩ମతͳ࣮ํ๏ʹ͍ͭͯݟͯ Έ·͠ΐ͏
mixi, Inc. ۩ମతͳ࣮ྫ - ͓ؾʹೖΓ • ϝσΟΞΦϒδΣΫτʹ͋Δ୯ҰͷpropertyΛߋ৽͢ΔͷΈͳͷͰɺ࣮͔ͳΓγϯϓϧͳͷʹͳΓ·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ΈͯͶͰΞοϓϩʔυ͞ΕͨϝσΟΞ ʹίϝϯτΛ͢Δ͜ͱ͕Ͱ͖·͢ • ݱঢ়ͰίϝϯτߘதʹIndicatorΛද
ࣔ͢ΔΑ͏ʹͳ͍ͬͯ·͢ ▶︎ ͜ͷίϝϯτػೳΛOptimistic Updates Ͱ࣮͢Δ͜ͱΛߟ͑ͯΈ·͠ΐ͏
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ·ͣOptimistic UpdatesΛ࣮͘͢͠ ͘͢ɺView༻ͷίϝϯτΦϒδΣΫτͰ ͋Δ
CommentItem Λ༻ҙ͠·͢ • init ͰυϝΠϯΦϒδΣΫτΛड͚औͬͯ มͰ͖ΔΑ͏ʹ͍ͯ͠·͢ • ޙʹ৭ʑͱproperty͕Ճ͞Ε͍ͯ͘༧ఆ Ͱ͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ࣍ʹɺMVPͰ࣮͢Δ͜ͱલఏͰ͕͢ɺ PresenterΛ༻ҙ͠·͢ • ͜͜ʹOptimistic
Updatesͷ࣮ΛՃ͑ͯ ͍͖·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • Presenterʹɺίϝϯτૹ৴Ϙλϯ ԡԼ࣌ʹݺΕΔ addComment
ϝιουΛ࣮͍͖ͯ͠·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ͨͩ͠ɺ͜ͷ addComment ࿈ଓ͠ ͯԿݺΕΔ͜ͱΛߟྀͰ͖ͯ
͍·ͤΜ • Ծʹ1ճͷίʔϧͰϨεϙϯε͕· ͩฦΒͳ͍ؒʹ2ճͷίʔϧ͕ޭ ͠ɺͦͷޙ1ճͷίʔϧͰαʔόʔ ͔ΒΤϥʔ͕ฦ͖ͬͯͨ߹ɺ comments.removeLast() ҙਤͯ͠ ͍ͳ͍ CommentItem Λআͯ͠͠· ͏͜ͱʹͳΓ·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ ▶︎ ղܾ͢ΔͨΊʹɺ CommentItem ΛҰҙʹࣝผͰ͖Δ Α͏ʹ
mutaitionID ΛՃ͠·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • mutationID Λ CommentItem ʹઃఆ͠ɺ
ϨεϙϯεΛड͚औͬͨࡍ ʹͦΕΛݩʹదʹΛ ߋ৽͠·͢ • ͜ΕͰෳճݺΕͯద ʹॲཧͰ͖·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ͨͩ͜ͷ··ͩͱɺOptimistic UpdatesͰԾͷσʔλ Λද͍ࣔͯ͠Δঢ়ଶͷViewʹରͯ͠ɺϢʔβʔ͕ίϝ ϯτͷฤूআ͕Ͱ͖ͯ͠·͍·͢
▶︎ ରԠͱͯ͠ɺ·ͩαʔόʔ͔ΒϨεϙϯε͕ฦ͖ͬͯ ͍ͯͳ͍߹Viewͷૢ࡞Λ੍ݶͰ͖ΔΑ͏ʹ͠·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ঢ়ଶΛView͔ΒదʹผͰ͖ΔΑ ͏ʹɺCommentItem ʹ LoadingState
ΛՃ͠·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • addComment ϝιουͰద ʹ loadingState
Λઃఆ͠·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ͋ͱɺViewଆͰ CommentItem.loadingState Λݟͯɺ .loading
ͷ߹ʹૢ࡞Λ੍ݶ͢ Εྑ͍͜ͱʹͳΓ·͢ (Viewͷίʔυলུ ) ▶︎ ͞Βʹɺߘʹࣦഊͨ࣌͠ʹίϝϯτΛλοϓ͢ΔͱϦτϥΠͰ͖ΔΑ͏ʹͯ͠Έ·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ·ͣɺLoadingState ʹ .failure ΛՃ͠·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • addComment ϝιουͷcatchจʹͯ֘͢Δ CommentItem Λআ͢ΔΘΓʹ
loadingState ʹ .failure Λઃఆ͠·͢
mixi, Inc. ۩ମతͳ࣮ྫ - ίϝϯτ • ͋ͱPresenterʹϦτϥΠϝιουΛՃ͠ɺCellΛλοϓͨ͠ࡍʹݺΕΔΑ͏ʹ࣮͠·͢
mixi, Inc. ߘલ ߘத ߘࣦഊ
mixi, Inc. Optimistic Updatesͷ࣮ʹ͍ͭͯৼΓฦΓ • ྫ͓͑ؾʹೖΓػೳͷΑ͏ͳɺΦϒδΣΫτͷ୯Ұpropertyͷߋ৽ʹ͍ͭͯൺֱత؆ ୯ʹ࣮͕ՄೳͰ͢ • ͨͩ͠ɺίϝϯτߘͷΑ͏ͳɺ৽نΦϒδΣΫτͷ࡞ʹ͍ͭͯɺͦΕͳΓʹ ͕͔͔Γͦ͏Ͱ͢
• ·ͨɺࠓճͯ֘͢Viewͱੜଘظؒͷ͍͠PresenterͷதͰঢ়ଶΛཧ͠·ͨ͠ ͕ɺԾʹ͜ΕΛଞͷViewʹൖ͍ͤͨ͞ͱͳΔͱɺSingletonείʔϓͷΠϯϝϞϦε τΞ or databaseͰঢ়ଶΛཧͭͭ͠ɺ֤ViewͰ݁ՌΛsubscribeͰ͖ΔΑ͏ʹ࣮͢Δ ඞཁ͕͋Γɺ͔ͳΓࠎ͕ંΕͦ͏Ͱ͢
mixi, Inc. Apollo Clientͷհ • GraphQLΫϥΠΞϯτͰ͋Δ Apollo Ͱɺ͜ͷOptimistic UpdatesͷػೳΛఏڙ͍ͯ͠·͢ (iOSΫϥΠΞϯτͰະ࣮
) • ͪ͜ΒͰ mutationID ͷΑ͏ͳͷΛ༻ҙ͠ͳͯ͘ɺϦΫΤετͷޭ, ࣦഊʹԠͯ͡ΩϟογϡΛదʹߋ৽ͯ͘͠Ε·͢ • ΩϟογϡΛwatch͍ͯ͠ΔViewʹߋ৽͕ൖ͞Ε·͢ • ͨͩ͠ɺઌͷྫͷΑ͏ʹloadingStateʹΑͬͯViewͷݟͨΛม͑ΔΑ͏ͳ͜ͱͰ͖ͳͦ͞͏Ͱ͢ (Apollo ReactͰApollo LinkΛ͑Ͱ͖Δ͔ʁ) Apollo KotlinΑΓ
Thank you!!!