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
Writing better Flutter Code with Flutter Lint /...
Search
Kenichi Kambara
April 21, 2023
Technology
0
490
Writing better Flutter Code with Flutter Lint / Part2
#flutter
#flutterjp
#flutterdev
##shibuya_apk
Kenichi Kambara
April 21, 2023
Tweet
Share
More Decks by Kenichi Kambara
See All by Kenichi Kambara
[FlutterTokyo#10]In-App Language Switching in Flutter
korodroid
0
21
[potatotips #92]Integrating Quick Settings Tiles into Your Android App
korodroid
1
130
[ABC2025Spring]Code Less, Build More: A Practical Guide to Mobile Apps with Generative AI
korodroid
0
200
[DevTalksRomania]Building Augmented Reality Experiences with Flutter and AI-Powered Development
korodroid
0
15
[FlutterNinjas]Adapting Flutter App UX for Users Across the World
korodroid
0
49
[FlutterTokyo#6]Navigating Flutter Upgrades
korodroid
0
68
[DevFestTokyo]Accelerating Flutter App Development Using Generative AI
korodroid
2
900
[DevFestMilano]Enhancing Flutter Apps UX for Global Users
korodroid
0
48
[mobile #15]UX Improvements on Flutter Apps Part 5
korodroid
0
61
Other Decks in Technology
See All in Technology
Create Ruby native extension gem with Go
sue445
0
130
「どこから読む?」コードとカルチャーに最速で馴染むための実践ガイド
zozotech
PRO
0
560
新規プロダクトでプロトタイプから正式リリースまでNext.jsで開発したリアル
kawanoriku0
1
200
DroidKaigi 2025 Androidエンジニアとしてのキャリア
mhidaka
2
380
TS-S205_昨年対比2倍以上の機能追加を実現するデータ基盤プロジェクトでのAI活用について
kaz3284
1
220
Evolución del razonamiento matemático de GPT-4.1 a GPT-5 - Data Aventura Summit 2025 & VSCode DevDays
lauchacarro
0
210
Rustから学ぶ 非同期処理の仕組み
skanehira
1
150
2025/09/16 仕様駆動開発とAI-DLCが導くAI駆動開発の新フェーズ
masahiro_okamura
0
130
エンジニアリングマネージャーの成長の道筋とキャリア / Developers Summit 2025 KANSAI
daiksy
3
1k
これでもう迷わない!Jetpack Composeの書き方実践ガイド
zozotech
PRO
0
1.1k
Platform開発が先行する Platform Engineeringの違和感
kintotechdev
4
590
普通のチームがスクラムを会得するたった一つの冴えたやり方 / the best way to scrum
okamototakuyasr2
0
110
Featured
See All Featured
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
9
810
Code Review Best Practice
trishagee
71
19k
For a Future-Friendly Web
brad_frost
180
9.9k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.4k
KATA
mclloyd
32
14k
GitHub's CSS Performance
jonrohan
1032
460k
Code Reviewing Like a Champion
maltzj
525
40k
jQuery: Nuts, Bolts and Bling
dougneiner
64
7.9k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.1k
Building Flexible Design Systems
yeseniaperezcruz
329
39k
The Power of CSS Pseudo Elements
geoffreycrofte
77
6k
Into the Great Unknown - MozCon
thekraken
40
2k
Transcript
2023.04.21 ਆݪ ݈Ұ (@korodroid) Writing better Flutter Code with
Flutter Lint / Part2 shibuya.apk #41
ࣗݾհ •ۀɿϞόΠϧΞϓϦ։ൃ/ٕज़ࢧԉ/จԽৢ׆ಈ •ߨԋɿΠϕϯτొஃ(ւ֎14ճɺࠃ100ճ+) •ࣥචɿ7 •झຯɿϥϯχϯά/ӳձ/ΞϓϦ։ൃ ਆݪ ݈Ұ (NTTςΫϊΫϩε/ΤόϯδΣϦετ) @korodroid
ॳΊͯͷshibuya.apkొஃ(8લ…)
About my Flutter product (Private works) Sekaiphone Pro(Flutter/Kotlin/Swift) MyToDo(Flutter)
Part1ͷ͓͞Β͍
Lintπʔϧ(੩తղੳ)Λ׆༻͢ΔϝϦοτྫ 1. જࡏతͳόάͷݕग़ 2. ϨϏϡʔ࡞ۀͷෛՙܰݮ 3. ΞϓϦͷύϑΥʔϚϯεվળ
Flutter͚Lintπʔϧ( fl utter_lints) https://pub.dev/packages/ fl utter_lints
Walking through “ fl utter_lints” ↑ඞཁʹԠͯ͡ɺ࠷৽൛ʹߋ৽
Walking through “ fl utter.yaml” # Recommended lints for
Flutter apps, packages, and plugins. include: package:lints/recommended.yaml linter: rules: - avoid_print - avoid_unnecessary_containers - avoid_web_libraries_in_ fl utter - no_logic_in_create_state - prefer_const_constructors - prefer_const_constructors_in_immutables - prefer_const_declarations - prefer_const_literals_to_create_immutables - sized_box_for_whitespace - sort_child_properties_last - use_build_context_synchronously - use_full_hex_values_for_ fl utter_colors - use_key_in_widget_constructors
Walking through “Linter for Dart” https://dart-lang.github.io/linter/lints/ productionίʔυʹ͓͚Δprint੍
Example: “avoid_print”
͔͜͜ΒPart2
Customizing Rules https://github.com/ fl utter/samples
Walking through “Sample Rules” include: package: fl utter_lints/ fl
utter.yaml analyzer: language: strict-casts: true strict-inference: true linter: rules: avoid_types_on_closure_parameters: true avoid_void_async: true cancel_subscriptions: true close_sinks: true directives_ordering: true package_api_docs: true package_pre fi xed_library_names: true test_types_in_equals: true throw_in_ fi nally: true unawaited_futures: true unnecessary_statements: true use_super_parameters: true include: package:analysis_defaults/ fl utter.yaml ֤sampleͷanalysis_options.yaml
include: package: fl utter_lints/ fl utter.yaml analyzer: language: strict-casts:
true strict-inference: true linter: rules: avoid_types_on_closure_parameters: true avoid_void_async: true cancel_subscriptions: true close_sinks: true directives_ordering: true package_api_docs: true package_pre fi xed_library_names: true test_types_in_equals: true throw_in_ fi nally: true unawaited_futures: true unnecessary_statements: true use_super_parameters: true include: package:analysis_defaults/ fl utter.yaml ֤sampleͷanalysis_options.yaml Walking through “Sample Rules”
Customizing static analysis https://dart.dev/guides/language/analysis-options
Customizing Rules ↑ඞཁʹԠͯ͡ɺΧελϚΠζ
Example1 analyzer: errors: avoid_print: error ྫ.avoid_printҧΛΤϥʔʹ
Example2 linter: rules: avoid_print: false ྫ.avoid_printҧΛνΣοΫର֎
Example3 analyzer: exclude: - “**/*.g.dart" - "**/*.freezed.dart" - test/*.dart
ྫ.ରύεͷϑΝΠϧΛνΣοΫର֎
·ͱΊ •ެࣜϦϑΝϨϯεͷϓϥΫςΟεΛࢀߟʹʂ •Linter for DartɺݴޠֶशͷಡΈͱ͓ͯ͢͢͠Ίʂ •ඞཁʹԠͯ͡ɺϧʔϧΛదٓΧελϚΠζ
Please let me know if you have any requests
such as technical speeches, technical writings and so on. Facebook:http://fb.com/kanbara.kenichi Twitter:@korodroid LinkedIn:http://www.linkedin.com/in/korodroid Thank you so much