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