Link
Embed
Share
Beginning
This slide
Copy link URL
Copy link URL
Copy iframe embed code
Copy iframe embed code
Copy javascript embed code
Copy javascript embed code
Share
Tweet
Share
Tweet
Slide 1
Slide 1 text
APIͷσʔλͷϚοϐϯάΛ 18ഒͨ͘͠ potatotips #48 @magie_pooh
Slide 2
Slide 2 text
ࣗݾհ ౻ాୖຏ @magie_pooh @magiepooh झຯɾಛٕ: ΫϥϑτϏʔϧɾຊञɾϚδοΫɾ࠵
Slide 3
Slide 3 text
ͱ͋ΔΞϓϦͷ։ൃத • ը໘ભҠ͕͍͕͋Δͳʔͱࢥͬͨ
Slide 4
Slide 4 text
ͱ͋ΔΞϓϦͷ։ൃத • ը໘ભҠ͕͍͕͋Δͳʔͱࢥͬͨ • Nexus5Xͱ͔Ͱඵ
Slide 5
Slide 5 text
ͱ͋ΔΞϓϦͷ։ൃத • ը໘ભҠ͕͍͕͋Δͳʔͱࢥͬͨ • Nexus5Xͱ͔Ͱඵ • SO-04G (5.0.2)Ͱը໘ભҠʹ20sec͘Β͍ɾɾ
Slide 6
Slide 6 text
No content
Slide 7
Slide 7 text
ঢ়گ • Wi-Fiଓڥ • σʔλJSONܗࣜ • αΠζ1MB • Kotlin + Moshi(=A modern JSON library for Android and Java)
Slide 8
Slide 8 text
ରࡦ
Slide 9
Slide 9 text
ରࡦ1ɿMoshi͕ѱ͍ͷͰʁ • moshi(moshi-kotlin: SquareJSONύʔα)ϦϑϨΫγϣϯ Λ༻͍͍ͯΔͨΊɺίετ͕ߴ͍ • KotshiΛ͏ • An annotations processor that generates Moshi adapters from immutable Kotlin data classes. • https://github.com/ansman/kotshi
Slide 10
Slide 10 text
ରࡦ1ɿMoshi͕ѱ͍ͷͰʁ • moshi(moshi-kotlin: SquareJSONύʔα)ϦϑϨΫγϣϯ Λ༻͍͍ͯΔͨΊɺίετ͕ߴ͍ • KotshiΛ͏ • An annotations processor that generates Moshi adapters from immutable Kotlin data classes. • https://github.com/ansman/kotshi => 20sec -> 12sec
Slide 11
Slide 11 text
ରࡦ2ɿΦϒδΣΫτੜ͕ଟ͗͢Δ • ྻͷதʹΦϒδΣΫτ͕େྔʹଘࡏ͍ͯͨ͠ { “hogeArray”: [ {“obj”: {123, 456.2}},… ] }
Slide 12
Slide 12 text
ରࡦ2ɿΦϒδΣΫτੜ͕ଟ͗͢Δ • ྻͷதʹΦϒδΣΫτ͕େྔʹଘࡏ͍ͯͨ͠ => ΦϒδΣΫτ͡Όͳ͘ɺStringܕͷྻͷྻͰදݱ͢Δ { “hogeArray”: [ {“obj”: {123, 456.2}},… ] } { “hogeArray”: [ [“123”, “456.2”],… ] }
Slide 13
Slide 13 text
ରࡦ2ɿΦϒδΣΫτੜ͕ଟ͗͢Δ • ྻͷதʹΦϒδΣΫτ͕େྔʹଘࡏ͍ͯͨ͠ => ΦϒδΣΫτ͡Όͳ͘ɺStringܕͷྻͷྻͰදݱ͢Δ { “hogeArray”: [ {“obj”: {123, 456.2}},… ] } { “hogeArray”: [ [“123”, “456.2”],… ] } => 12sec -> 8.4secʢྻσʔλ͕ͦͦڊ େͩͬͨͨΊɺ͔ͳΓ͕ࠩग़ͨʣ
Slide 14
Slide 14 text
ରࡦ3: APIఆٛΛݟ͢ • ྻσʔλΛ̍ͭʹڞ௨ԽͰ͖Δɾɾɾʂ • ॏෳͨ͠ྻσʔλΛ4ͭड͚औ͍ͬͯͨ => 8.4sec -> 2.9sec
Slide 15
Slide 15 text
·ͱΊ1 • ΄΅Kotshiͷ͓͔͕͛ͩɺ20sec -> 2.9secʹͳͬͨ • େྔͷྻσʔλʹܕΛ͚ͭΔͷΑ͘ͳ͍ • ʮͦͷɺਓྨࢥ͍ग़ͨ͠ɻؒͷύϑΥʔϚϯεࠩҟ ͷڪාΛɻͦΕͰαϙʔτ͠ͳ͚Ε͍͚ͳ͍۶ৱΛɻʯ • SO-04G (5.0.2): 2.9sec • SO-02G (4.4.4): 0.64sec
Slide 16
Slide 16 text
·ͱΊ2 • iOSͰͦ͜·Ͱύʔεʹ͕͔͔࣌ؒͬͯͳ͔ͬͨͷ͕ٙ • ͔ͯ͠͠ݹ͍ͩͱ͕͔͔࣌ؒΔʁ • ը໘ભҠΞχϝʔγϣϯ(Shared Element Transition)͕͋Δͱɺ 2.9secͰ͘ײ͡ͳ͍ • ͦΕͰɺ2.9sec͔͔Δͷ͕ݏͩͬͨͷͰɺେྔͷྻͷऔಘ ผAPIʹΓग़ͨ͠ɻʢͦΕͰ1.2sec͘Β͍·ͰॖΊͯ18ഒͷύ ϑΥʔϚϯεվળୡɾɾʣ