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
モバイルアプリで困らないエラーハンドリングとロギングのベストプラクティス
Search
Yoichi Tagaya
September 16, 2017
Programming
21
6.6k
モバイルアプリで困らないエラーハンドリングとロギングのベストプラクティス
iOSDC 2017 in Tokyo, September 16-17, 2017
https://iosdc.jp/2017/node/1482
Yoichi Tagaya
September 16, 2017
Tweet
Share
More Decks by Yoichi Tagaya
See All by Yoichi Tagaya
Dependency Injection
yoichitgy
0
170
Dependency Injection Pattern for iOS App
yoichitgy
1
270
Dependency Injection Pattern for iOS Apps
yoichitgy
2
410
Practical Structure to Configure Dependency Injection in Swift for iOS
yoichitgy
1
510
Architecture and ReactorKit
yoichitgy
1
660
GDPRについて
yoichitgy
2
1.5k
More about Crashlytics and Less about GDPR ;)
yoichitgy
2
300
How to contribute to try! Swift Tokyo 2018
yoichitgy
0
91
Dependency Injection in Practice (iOSCon)
yoichitgy
0
470
Other Decks in Programming
See All in Programming
CJK and Unicode From a PHP Committer
youkidearitai
PRO
0
110
Honoアップデート 2025年夏
yusukebe
1
920
Putting The Genie in the Bottle - A Crash Course on running LLMs on Android
iurysza
0
130
Tool Catalog Agent for Bedrock AgentCore Gateway
licux
6
1.9k
Ruby Parser progress report 2025
yui_knk
1
300
react-callを使ってダイヤログをいろんなとこで再利用しよう!
shinaps
1
200
AWS発のAIエディタKiroを使ってみた
iriikeita
1
170
testingを眺める
matumoto
1
130
Claude Codeで実装以外の開発フロー、どこまで自動化できるか?失敗と成功
ndadayo
4
2k
CSC305 Summer Lecture 12
javiergs
PRO
0
140
「待たせ上手」なスケルトンスクリーン、 そのUXの裏側
teamlab
PRO
0
330
プロパティベーステストによるUIテスト: LLMによるプロパティ定義生成でエッジケースを捉える
tetta_pdnt
0
170
Featured
See All Featured
Unsuck your backbone
ammeep
671
58k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
7
840
Building Applications with DynamoDB
mza
96
6.6k
BBQ
matthewcrist
89
9.8k
Facilitating Awesome Meetings
lara
55
6.5k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
VelocityConf: Rendering Performance Case Studies
addyosmani
332
24k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
131
19k
Why Our Code Smells
bkeepers
PRO
339
57k
Optimising Largest Contentful Paint
csswizardry
37
3.4k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
507
140k
Transcript
!ZPJDIJUHZ ϞόΠϧΞϓϦͰࠔΒͳ͍ ΤϥʔϋϯυϦϯάͱ ϩΪϯάͷϕετϓϥΫςΟε ଟլ୩ ༸Ұ iOSDC JAPAN 2017
!ZPJDIJUHZ ࣗݾհ ʙ ଟլ୩ ༸Ұ • Swinject (Dependency Injection Framework)
ͷ࡞ऀ ‣ ଟͷϓϩμΫγϣϯ࠾༻ ‣ GitHubελʔ: ͏͙͢2000 • ϝϧΧϦͷiOSΤϯδχΞ ‣ ओʹΞϝϦΧ൛ΞϓϦΛ୲ ‣ 9/30 () Mercari Tech Conf 2017ͰDIͷΛ͠·͢ J04%$ͰlίʔυੜʹΑΔ੩తͳ%FQFOEFODZ*OKFDUJPOzCZ!JTILBXBPO4FQ
!ZPJDIJUHZ •ɹΤϯδχΞͷεΩϧ •ɹίʔυϨϏϡʔ •ɹϢχοτςετ •ɹ6*ࣗಈςετ •ɹखಈςετ •ɹΤϥʔϩά ࠓͷ ΞϓϦͷ্࣭ʹඞཁͳ͜ͱ
!ZPJDIJUHZ ͜Μͳͷݟͨ͜ͱ͋Γ·ͤΜ͔ʁ ΫϥογϡͰ1ˑϨϏϡʔͷཛྷ ࠶ݱ͠ͳ͍ Ͳ͏͢Ε͍͍͔͔Βͳ͍ ΞϓϦΛόʔδϣϯΞοϓͨ͠
!ZPJDIJUHZ Ϋϥογϡϩάͱ͍͑
!ZPJDIJUHZ Crashlytics IUUQTXXXGBCSJDJP $SBTIMZUJDTΛਂ͘୳ͬͯΈΑ͏
!ZPJDIJUHZ CrashlyticsͰҰ൪ॏཁͳ͜ͱ IUUQTEPDTGBCSJDJPBQQMFDSBTIMZUJDTUFTUDSBTIIUNMUSPVCMFTIPPUJOH func application( _ application: UIApplication, didFinishLaunchingWithOptions launchOptions:
[UIApplicationLaunchOptionsKey: Any]? ) -> Bool { Fabric.with([Crashlytics.self]) return true } ϩάΫϥογϡޙʹΞϓϦ͕࠶ىಈͨ࣌͠ʹૹΒΕΔ application:didFinishLaunchingWithOptionsΛແࣄʹ௨ա͠ͳ͍ͱμϝ
!ZPJDIJUHZ ىಈ࣌ application:didFinishLaunchingWithOptionsͰͦ͠͏ͳ͜ͱ • ֤छϑϨʔϜϫʔΫͷॳظԽ •ɹ%BUBCBTFͷϚΠάϨʔγϣϯ •ɹΩϟογϡͷΫϦΞ ϝΠϯεϨουΛ࣌ؒࢭΊͳ͍
!ZPJDIJUHZ ಛʹґଘϥΠϒϥϦʹҙ IUUQTHJUIVCDPNQJOUFSFTU1*/3FNPUF*NBHFJTTVFT 1*/3FNPUF*NBHFࣗମ͍͍ϥΠϒϥϦͰ͢
!ZPJDIJUHZ ͦΕͰ
!ZPJDIJUHZ Crashlyticsͬͯ Πϯετʔϧ͢ΔҎ֎ʹ Կ͔ඞཁͳͷʁ
!ZPJDIJUHZ Crashlyticsʹ ศརͳՃใ͕͋Δ
!ZPJDIJUHZ ϢʔβใͷՃ γϯάϧτϯϝιου આ໌ TFU6TFS*EFOUJpFS @ 6TFS*EΛઃఆ͢Δ TFU6TFS&NBJM @ &NBJMΛઃఆ͢Δ
6TFS*E͕͋Εී௨ෆཁ TFU6TFS/BNF @ Ϣʔβͷ໊લΛઃఆ͢Δ 6TFS*E͕͋Εී௨ෆཁ ΧελϚʔαϙʔτͷใ͔ΒௐΔ࣌ʹศར &NBJMͱϢʔβͷ໊લ໌Β͔ͳݸਓใͳͷͰҙ
!ZPJDIJUHZ Key/ValueͷՃ γϯάϧτϯϝιου આ໌ TFU0CKFDU7BMVF @GPS,FZ 4USJOHͳͲΛ,FZʹରͯ͠ઃఆ͢Δ TFU#PPM7BMVF @GPS,FZ #PPMΛ,FZʹରͯ͠ઃఆ͢Δ
TFU*OU7BMVF @GPS,FZ *OUΛ,FZʹରͯ͠ઃఆ͢Δ TFU'MPBU7BMVF @GPS,FZ 'MPBUΛ,FZʹରͯ͠ઃఆ͢Δ 3FNPUF$POpH "#5FTU %PXOMPBEͨ͠Ϧιʔε+4ͷ7FSTJPOʹ ࠷େݸͷ,FZ·Ͱͭͷ,FZ7BMVF͕,#·Ͱ ,FZ͕ͨ͘͞ΜඞཁͳΒ+40/จࣈྻʹ͢Δ͜ͱݕ౼
!ZPJDIJUHZ ΧελϜϩάͷՃ ؔ આ໌ $-4-PHW @GPSNBU BSHT Ϋϥογϡൃੜલͷϩά͕Ϋϥογϡʹඥ͚ΒΕΔ ΫϥογϡͷݪҼʹͳΔલͷಈ࡞͕Θ͔Δ
ϩά࠷େ,# ߦจࣈ͘Β͍ͳΒߦ͘Β͍ ͋;ΕͨΒݹ͍ͷ͔Βফ͞ΕΔ Ϣʔβߦಈ Πϕϯτ ͷϩά"OTXFST'JSFCBTFͳͲΛ͏
!ZPJDIJUHZ ඇΫϥογϡͷϨϙʔτΛՃ γϯάϧτϯϝιου આ໌ SFDPSE&SSPS @ ॏେͳΤϥʔͰϩάΤϯτϦʔΛ࡞Δ Ϩϙʔτ/PO'BUBMTάϧʔϓʹ·ͱΊΒΕΔ ΞϓϦ࠶ىಈ࣌ʹ$SBTIMZUJDTʹૹ৴͞ΕΔ
Ϋϥογϡ͠ͳ͍͕ॏେͳΤϥʔΛ$SBTIMZUJDTͰ֬ೝͰ͖Δ ϩάʹΔͷΞϓϦ࠶ىಈ·Ͱͷ࠷େݸͷΤϥʔ·Ͱ $16ίετ͕͔͔ΔͷͰΦϒβʔόʔޮՌʹҙ %8"3' %FCVH8JUI"UUSJCVUFE3FDPSE'PSNBU VOXJOEJOH
!ZPJDIJUHZ CrashlyticsΛ OSLogͱΈ߹Θͤͯ ࣗ࡞ͷϩΨʔΛ࡞Γ·͢
!ZPJDIJUHZ OSLog/os_log var osLog = OSLog( subsystem: “com.my-company.LoggingSample", category: “ViewModel”
) os_log(“Hello world!”, log: osLog, type: .default) ͍ํ J04͔Β͑ΔΑ͏ʹͳͬͨϩάͷΈ
!ZPJDIJUHZ OSLogType IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOPTMPHHJOH ϩάϨϕϧ อଘઌ ಛ EFCVH ͳ͠ σόοά༻
JOGP ϝϞϦʔ όοϑΝʔ͕͍ͬͺ͍ʹͳͬͨΒফ͑Δ Τϥʔ͕ى͖ͨ߹อଘ͞ΕΔ EFGBVMU ετϨʔδ ࠷ॳόοϑΝʔʹอଘ͞ΕΔ ͍ͬͺ͍ʹͳͬͨΒετϨʔδʹҠ͞ΕΔ FSSPS ετϨʔδ ϓϩηεͷΤϥʔͰ͏ GBVMU ετϨʔδ ෳϓϩηε͕ؔΘΔΤϥʔͰ͏
!ZPJDIJUHZ Console App IUUQTEFWFMPQFSBQQMFDPNWJEFPTQMBZXXED IUUQTNFEJVNDPN!BCKVSBUPVOJpFEMPHHJOHBOEBDUJWJUZUSBDJOHBB⒎FGC • "DUJWJUZ5SBDJOHͱΈ߹ ΘͤΔͱศར • ෳϓϩηε͕ؔΘΔΞ
ϓϦͷσόοάͰศར w .BD"QQ w 8BUDI"QQ • ݱঢ়4XJGU͔Β ͑ͳ͍ w ͏ʹԼͷϦϯΫࢀর
!ZPJDIJUHZ ͔͠͠ͳ͕Β ࠓճγϯϓϧͳ༻๏ʹཹΊ·͢ # $SBTIMZUJDT͚ͩͰेڧྗ
!ZPJDIJUHZ ࣗ࡞ϩΨʔͷϩάϨϕϧ ϩάϨϕϧ ༻్ ॲཧ EFCVH %FCVH࣌ʹ͚ͩ ݟ͍ͨใ $POTPMFʹͷΈग़ྗ
JOGP "1*ίʔϧ τϨʔε $POTPMFͱ$-4-PHWͷग़ྗ FSSPS ϋϯυϦϯά ՄೳͳΤϥʔ $POTPMFͱ$-4-PHWͷग़ྗ $-4-PHWͷϝοηʔδݕࡧੑΛ্͛Δ GBUBM ఆ֎ͷΤϥʔ $POTPMFʹग़ྗ SFDPSE&SSPSͰ$SBTIMZUJDTͷϨϙʔτΤϯτϦʔΛ࡞Δ BTTFSUJPO'BJMVSFೖΕͯ%FCVHϏϧυͰམͪΔΑ͏ʹ͢Δ
!ZPJDIJUHZ LogΫϥε final class Log { static func debug(message: String)
{ os_log("⚒%@", type: .debug, message) } static func info(message: String) { os_log("ℹ%@", type: .debug, message) CLSLogv("%@", getVaList([message])) } static func error(message: String) { os_log("❗%@", type: .debug, message) CLSLogv("[Error] %@", getVaList([message])) } }
!ZPJDIJUHZ LogΫϥε final class Log { static func fatal( message:
String, file: String = #file, function: String = #function, line: Int = #line) { os_log("%@", log: .default, type: .debug, message) let fileName = file.components(separatedBy: "/").last ?? "" let error = NSError( domain: "\(fileName):\(function)", code: line, userInfo: ["message": message] ) Crashlytics.sharedInstance().recordError(error) assertionFailure(message) } }
!ZPJDIJUHZ final class Log { static func error(error: Error) {
let message = String(reflecting: error) os_log("❗%@", log: .default, type: .debug, message) CLSLogv("[Error] %@", getVaList([message])) } static func fatal(error: Error) { let message = String(reflecting: error) os_log("%@", log: .default, type: .debug, message) Crashlytics.sharedInstance() .recordError(error as NSError) assertionFailure(message) } } LogΫϥε
!ZPJDIJUHZ Demo -PHTXJGUIUUQTHJTUHJUIVCDPNZPJDIJUHZBEBBEFGFBBCB "QQ%FMFHBUFTXJGUIUUQTHJTUHJUIVCDPNZPJDIJUHZFEBGBCGFCFBCDF 7JFX$POUSPMMFSTXJGUIUUQTHJTUHJUIVCDPNZPJDIJUHZFCBFGEECBBD
!ZPJDIJUHZ Demoͨ͜͠ͱ
!ZPJDIJUHZ Demoͨ͜͠ͱ
!ZPJDIJUHZ guard let something = something else { // Swallow
return } guard !array.isEmpty else { // Swallow return } guard let something = something else { Log.fatal(message: "something is nil unexpectedly.") return } guard !array.isEmpty else { Log.fatal(message: "array is empty.") return } ࠷ޙʹ ෆਖ਼ͳঢ়ଶΛҿΈࠐΜͰ͍ͨΒ࠷ѱͰϩάΛૹ͓ͬͯ͜͏ ݱࡏͷ࣮Ͱ͋Γ͑ͳͯ͘কདྷͷόάΛݕ͢ΔͨΊ
!ZPJDIJUHZ %BUF 4QFBLFS 5JUMF !UFOOUFOO (PʹΑΔJ04ΞϓϦͷ։ൃ !DIVHBO[Z ϝϧΧϦͰ࣮ࢪͨ͠աڈ࠷େنͷ"#ςετʮυϩϫʔWTԼλϒʯͷཪ
!LJUBTVLF *OUSPEVDJOHQSPUPCVGJO4XJGU !KBSJOPTVLF 64൛.FSDBSJΛ·Δ͝ͱ͔Β࡞Γͨ͠ !NPUPLJFF ݁ࠗࣜΛࢧٕ͑ͨज़'JSFCBTFΛ׆༻ͨ͠αʔόϨεJ04ΞϓϦέʔγϣϯ։ൃ !EUWE ϝϧΧϦΞοςΛࢧ͑ΔΦʔτϚτϯ !KPMMZKPFTUFS པΉ͔Βϓογϡ௨ͷ͍ํΛ͓Ζ͔ͦʹ͠ͳ͍Ͱ͘Εʂ ʙϓογϡ௨ͷදݱɺྺ࢙ɺ࠷৽ಈ·Ͱʙ Thank you .PSFGSPN BUJ04%$