Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
High 意識 Android - Mercari Day
Search
Motohiro Takayama
January 20, 2017
Technology
14
17k
High 意識 Android - Mercari Day
Presentation at #mercariday
Motohiro Takayama
January 20, 2017
Tweet
Share
More Decks by Motohiro Takayama
See All by Motohiro Takayama
4 Years Startup & Architecture
mootoh
3
1.1k
近未来的並列 LL
mootoh
1
320
Other Decks in Technology
See All in Technology
Introduction to Sansan Meishi Maker Development Engineer
sansan33
PRO
0
310
初めてのDatabricks Apps開発
taka_aki
1
220
Okta Identity Governanceで実現する最小権限の原則 / Implementing the Principle of Least Privilege with Okta Identity Governance
tatsumin39
0
100
Azureコストと向き合った、4年半のリアル / Four and a half years of dealing with Azure costs
aeonpeople
1
230
CoRL 2025 Survey
harukiabe
1
230
Zephyr(RTOS)にEdge AIを組み込んでみた話
iotengineer22
0
220
事業開発におけるDify活用事例
kentarofujii
4
1.1k
ニッポンの人に知ってもらいたいGISスポット
sakaik
0
190
今この時代に技術とどう向き合うべきか
gree_tech
PRO
2
2.1k
Dylib Hijacking on macOS: Dead or Alive?
patrickwardle
0
420
「改善」ってこれでいいんだっけ?
ukigmo_hiro
0
380
Oracle Base Database Service 技術詳細
oracle4engineer
PRO
12
81k
Featured
See All Featured
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Large-scale JavaScript Application Architecture
addyosmani
514
110k
A designer walks into a library…
pauljervisheath
209
24k
A better future with KSS
kneath
239
18k
Code Reviewing Like a Champion
maltzj
526
40k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
34
2.5k
Done Done
chrislema
185
16k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.5k
It's Worth the Effort
3n
187
28k
Bash Introduction
62gerente
615
210k
Embracing the Ebb and Flow
colly
88
4.9k
YesSQL, Process and Tooling at Scale
rocio
173
14k
Transcript
High ҙࣝ Android mootoh
FAQ
: ϝϧΧϦͬͯ͏ ΞϓϦͯ͠Δ͠ Δ͜ͱͳ͍Μ͡Όͳ͍ͷ?
A: ·ͩ·ͩ·ͩ·ͩ ·ͩ·ͩ·ͩ·ͩ ͋Δ
2016/02~ • νϟϨϯδ • Χϧνϟʔ • ະདྷ
2016
Stats % git diff --shortstat `git log --pretty=%H --since 'last
year' | tail -n 1` → 2,029 files changed, +385,707, -170,628 ▪▪▪▪ % git log --pretty=%H --since 'last year' | wc -l → 4,049 commits
Team of 4 in "# # "
Team of 4→7 in "#$ $ # "
ެ҆9՝
“զʑͷؒʹɺνʔϜϓϨʔͳͲͱ͍͏ ߹ͷΑ͍ݴ͍༁ଘࡏͤΜɻ ͋Δͱ͢ΕελϯυϓϨʔ͔Βੜ͡Δɺ νʔϜϫʔΫ͚ͩͩɻ” — ߥרେี, 2002
ެ҆9՝Ϟσϧ • ߈֪ػಈୂ S.A.C • ཱࣗͨ͠ଟ༷ͳϝϯόʔ • ݸʑͷ؍͔ΒϓϩμΫτ/৫ͷվળΛ ࣮ફ͢Δ
FAQ
: ̓ਓΤϯδχΞ͍Ε ेͰ͠ΐ
A: ·ΔͰΓͳ͍ • #, ", $ ͦΕͧΕʹ͔Ε͍ͯΔ • ϓϩδΣΫτ͋ͨΓ 1~2ਓ
• ͬͱ͍ΕΕΔ͜ͱΛ૿ͤΔ
Challenges
None
ଠฏ༸Λ·͙ͨ Code Review " PR # Review " Revise #
Review # LGTM " Revise " Merge ☀ ☀ ☀ ☀ PR ͷཹ͕࣌ؒ͘ͳΔ → ϦϦʔε
Solution A
6:30am standup meeting • " ϝϯόʔ͕Έͳ༮ࣇ࣋ͪͩͬͨ → ڧ੍ૣى͖ • #
ʹ༏͍͠ (ன) • Նͩͬͨ → ே໌Δ͍ͷͰૣى͖͍͢͠ → ࢼ͠ʹͬͯΈΑ͏
݁Ռ: • • Sync ͷճ͕૿͑ͨ͜ͱʹΑΓɺϨϏϡʔͷޮ ্͕͕ͬͨ • • ࢠ͕6am ʹى͖ΔͷͰग़੮Ͱ͖ͳ͍
• ҙਤͷ֬ೝͳͲͰ͖Δ͕ PR ϕʔεͳͷͰ async
Solution B https://screenhero.com
ScreenHero • ϦϞʔτϖΞϓϩ • protected void synchronized review { …
} • ࣌ؒ߹ΘͤΔඞཁ͕͋Δ
݁Ռ • ίϛϡχέʔγϣϯͷଳҬ͕͍ • ͍͚ • ॏ͍ϨϏϡʔͷ࣌ʹཱͭ • PR Ͱ2-3ΓऔΓͯͯ͠Β͕͔ͪ͋ͳ͍
→ ͭͳ͍Ͱνϟνϟͬͱղܾ
# " $ Or…
ۃ Meeting • ཱྀ͍͍ͩͨඅ30~100ສ • ͍͍ͩͨڑ • פ͍⛄️
ݟ • ૣى͖Ωπ͍͕ʹཱͭ • ෳࡶʹԠͯ͡ίϛϡχέʔγϣϯͷଳҬΛม͑Δ • ͕࣌ࠩൃੜ͠ͳ͍Α͏ʹνʔϜΛ͚Δͷ • ۃΛఘΊͳ͍❄
Challenges
https://commons.wikimedia.org/wiki/File:Adobe_guadalupe_wine_barrel.jpg ख़
ख़ίʔυ • ϓϩμΫτ։ൃΛ࠷ͰલʹਐΊ͖ͯͨ • 3ख़ (࣌) • ݹΊͷςΫϊϩδ • (ಛʹ)৽͍͠ϝϯόʔʹͱͬͯมߋͮ͠Β͍
ݹΊͷςΫϊϩδ 34 • Networking: • HttpUrlConnection / Apache HttpClient with
ൿͷϨγϐ • Async Operation: • Callback Interface / EventBus • Singletons • Giant Activities
→एฦΓ 5 • Networking: okhttp • Async Operation: RxJava •
Singletons: Dagger2 • Giant Activities: MVVM
ϦϑΝΫλϦϯά͍͕ͨ͠… • Ҋ݅։ൃͰύπύπ • ϦϑΝΫλϦϯά͢Δ͜ͱͰσάϨ͢Δ͜ͱ ͕͋ͬͨ • QA ͔Βͷ৴པஷۚ㽊
࡞ઓ⚽ • Ҋ݅ͷεέδϡʔϧʹ৫ΓࠐΉ • ϦϑΝΫλͨ͠ํ͕ૣ͍ূڌΛੵ͢Δ • ςετͰσάϨΛࢭ͠ɺ৴པΛஷΊΔ
ݟ • ৽͍͠ػೳ࣮Λ͢ΔલʹϦϑΝΫλϦϯά • εέδϡʔϧʹ৫ΓࠐΉ • ͡Θ͡Θ͛Δ • ಆ͍ଓ͚ΔɺఘΊͳ͍
Challenges
# " 1 → 8 0 → 1 Product Phase
$ # " 0 → 1 8 → 10 1
→ 8 Product Phase
Repository # " + $ • ONE OK REPOSITORY •
flavor Ͱ͚͍ͯͨ
• มߋͮ͠Β͍ • isJP(), isUS(), isUK() • #͚ͷมߋΛ͍͚ͨͩ͠ͳͷʹ"ͷίʔυΛؾʹ͠ͳ͍ͱ͍͚ͳ͍ •
࣌ࠩ (ઌड़) • QA େม • Өڹൣғ: #͚ͷมߋ͚ͩͲɺ΄Μͱʹ"յΕͯͳ͍? • Region ͝ͱͰ phase ͕ҟͳΔ • ༏ઌ։ൃελΠϧҟͳΔ
Solutions • ͻͱ·ͣ Branch Λ͚ͨ ⎇ • Fork ͨ͠ΒΔͷࠔ •
ͬͱ Region ͕૿͑ͨΒ?
Challenges
ID ج൫
ID ج൫ • Single Sign On తͳͷ • Mercari <->
Souzoh • iOS / Android ͷϥΠϒϥϦॻ͘͜ͱʹͳͬͨ
ݸਓతνϟϨϯδ • Kotlin • ຊମΞϓϦʹಋೖ᪳ΘΕΔ͕ϥΠϒϥϦʹͳΒ • gRPC • HTTP/2, Protobuf,
ΫϩεϓϥοτϑΥʔϜ
gRPC "# • #-"Ͱ gRPC ௨৴͢Δͱ͞ΔσόΠε͕ • " Ͱ͕ൃੜ͠ͳ͍
• ϥΠϒϥϦͷԞਂ͍ͱ͜Ζʹ͕͋Γͦ͏ • ී௨ͷ௨৴͕ͳ͍ • ͔͕࣌ؒ͠͠ͳ͍⌛
gRPC-gateway ? • gRPC ͷαʔϏεʹ RESTful JSON API ͰΞΫ ηεͰ͖Δ
• ී௨ͷ HTTPS ΞΫηεͭͳ͕Δ • ճආ
ݟ • Kotlin • ϥΠϒϥϦɺςετͳͲ͔Β߈ΊΔ → μϝʔδগͳ͍ • ϨϏϡʔ͞ΕͮΒ͍ •
gRPC • REST ಀ͕͛ͩʹཱͭ • ίϯτϦϏϡʔγϣϯͰ͖Δ༨༟Λ͓ͯ͘͠
Future
·ͩ·ͩ·ͩ·ͩ·ͩ·ͩ͋Δ • ܻҧ͍ʹͨ͘͞Μͷ A/B ςετΛ ؆୯ʹճͤΔΈ • ଞ Region ্ཱͪ͛
• Inter-Region ചങ • 3D ग़ɺ VR γϣοϐϯά (ໝ)
Wrap Up
Wrap up • ·ͩ·ͩνϟϨϯδ͕͋Δ • ٕज़త & ϓϩμΫτత • ެ҆̕՝Ϟσϧ
“و༷ɺ͍͍Λ͍ͯ͠Δͳɻ ࠓ͔Βࢲͷ෦ԼʹͳΕɻ” — ಽૉࢠ, 2004
JOIN US