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
Flutterを言い訳にしない!アプリの使い心地改善テクニック5選🔥
Search
Kuno Ayana
November 20, 2024
Programming
3
760
Flutterを言い訳にしない!アプリの使い心地改善テクニック5選🔥
FlutterKaigi 2024 の LT です!
Kuno Ayana
November 20, 2024
Tweet
Share
More Decks by Kuno Ayana
See All by Kuno Ayana
ぬるぬる動かせ! Riveでアニメーション実装🐾
kno3a87
1
1.5k
Dart 参戦!!静的型付き言語界の隠れた実力者
kno3a87
0
220
iOS 18 がやってきた!
kno3a87
1
220
おうちハッカソン #2
kno3a87
0
140
ミクアカ成果報告会
kno3a87
0
35
SXSW2021
kno3a87
0
49
ミクアカ中間発表会
kno3a87
0
24
大学院進学ガイダンス
kno3a87
0
85
画像処理論セミナー7-1-3
kno3a87
0
24
Other Decks in Programming
See All in Programming
SODA - FACT BOOK(JP)
sodainc
1
8.6k
XP, Testing and ninja testing ZOZ5
m_seki
3
790
Go言語の特性を活かした公式MCP SDKの設計
hond0413
1
420
PHPに関数型の魂を宿す〜PHP 8.5 で実現する堅牢なコードとは〜 #phpcon_hiroshima / phpcon-hiroshima-2025
shogogg
1
320
Devoxx BE - Local Development in the AI Era
kdubois
0
130
CSC305 Lecture 08
javiergs
PRO
0
270
bootcamp2025_バックエンド研修_WebAPIサーバ作成.pdf
geniee_inc
0
120
3年ぶりにコードを書いた元CTOが Claude Codeと30分でMVPを作った話
maikokojima
0
610
なぜあの開発者はDevRelに伴走し続けるのか / Why Does That Developer Keep Running Alongside DevRel?
nrslib
3
410
コード生成なしでモック処理を実現!ovechkin-dm/mockioで学ぶメタプログラミング
qualiarts
0
240
スキーマ駆動で、Zod OpenAPI Honoによる、API開発するために、Hono Takibiというライブラリを作っている
nakita628
0
290
Server Side Kotlin Meetup vol.16: 内部動作を理解して ハイパフォーマンスなサーバサイド Kotlin アプリケーションを書こう
ternbusty
3
230
Featured
See All Featured
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
46
2.5k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
162
15k
Rebuilding a faster, lazier Slack
samanthasiow
84
9.2k
A Modern Web Designer's Workflow
chriscoyier
697
190k
Building an army of robots
kneath
306
46k
[RailsConf 2023 Opening Keynote] The Magic of Rails
eileencodes
31
9.7k
Java REST API Framework Comparison - PWX 2021
mraible
34
8.9k
実際に使うSQLの書き方 徹底解説 / pgcon21j-tutorial
soudai
PRO
190
55k
Build your cross-platform service in a week with App Engine
jlugia
232
18k
Designing Experiences People Love
moore
142
24k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
21
1.2k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Transcript
ʙΞϓϦͷ͍৺վળςΫχοΫબʙ 'MVUUFSΛݴ͍༁ʹ͠ͳ͍ʂ
None
ͳΜ͔εΫϩʔϧ͢Δͱ ΧΫπΫΜ͚ͩͲʜ
ͳΜ͔εΫϩʔϧ͢Δͱ ΧΫπΫΜ͚ͩͲʜ ͔ͣͬ͠ͱݟͯΔͱ ͕͘ͳͬͯΔؾ͕͢Δʂ
None
ಈը͕දࣔ͞Ε͍ͯΔͱ͖ʹͦ͏
None
˞J1IPOF J04 Λ༻
None
Ƃō
None
5FYUVSF8JEHFU͏ͱ ݹΊͷJ1IPOFͰύϑΥʔϚϯε͕ൃੜ 1MBUGPSN7JFXΛ͓͏ʂ
None
ݱࡏͷϏσΦϑϨʔϜͷ(16্ͷϐΫηϧόοϑΝʔΛ ຖϑϨʔϜ$16ʹίϐʔ͍ͯ͠Δ ͦΕ͕ॏͦ͏ʁ
1MBUGPSN7JFX͔͓ͭ?@?
None
ݟ͚ͭͨʂʂʂ ˞࣮ࡍͷϓϩμΫτͰɼωΠςΟϒଆͰ)-4ϓϨΠϦετͷඇಉظϩʔυ͕ඞཁͩͬͨΓ )%3ରԠ͕ඞཁͩͬͨΓͨ͠ͷͰɼͪ͜ΒͷϥΠϒϥϦΛࢀߟʹϑϧεΫϥονͯ͠·͢
˞J1IPOF J04 Λ༻
None
ͳΜ͔ΞΠίϯઃఆ ө͞ΕΔ·Ͱ͘ͳ͍ʁ
None
UP#ZUF%BUBͰQOHΛ%BSU7.Ͱ Τϯίʔυ͢Δͱ͜ΖͰ͕͔͔࣌ؒͬͯΔ
ϥΠϒϥϦଆͰը૾ʹͤͣ 3(#"όΠτͷ··ฦ͢Α͏ʹϥΠϒϥϦΛվ ωΠςΟϒଆͰ3(#"ΛΫϩοϓͯ͠ը૾Խ͢ΔΑ͏ʹʂ
None
None
J1IPOF࣌ܭͷͱ͜λοϓͰϦετ͕ Ұ൪্·Ͱͬͯཉ͍͠Μ͚ͩͲʜ
None
Ұ൪্·ͰεΫϩʔϧͯ͘͠Εͳ͍ʜ
4DB ff PME -JTU7JFX
4DB ff PME -JTU7JFX 1SJNBSZ4DSPMM$POUSPMMFS
4DB ff PME -JTU7JFX 1SJNBSZ4DSPMM$POUSPMMFS 1SJNBSZ4DSPMM$POUSPMMFS
4DB ff PME -JTU7JFX 1SJNBSZ4DSPMM$POUSPMMFS 4DSPMM$POUSPMMFS ԣʹεΫϩʔϧόʔΛग़ͨ͠Γ Ϧετඌ·ͰεΫϩʔϧ͞ΕͨݕΛ͢ΔͨΊՃ
4DB ff PME -JTU7JFX 1SJNBSZ4DSPMM$POUSPMMFS 4DSPMM$POUSPMMFS εΫϩʔϧόʔΛग़ͨ͠Γ Ϧετඌ·ͰεΫϩʔϧ͞ΕͨݕΛ͢ΔͨΊՃ εςʔλεόʔλοϓͷݕ ͬͪ͜ʹ͘Δʂ
4DB ff PME -JTU7JFX 1SJNBSZ4DSPMM$POUSPMMFS 4DSPMM$POUSPMMFS εΫϩʔϧόʔΛग़ͨ͠Γ Ϧετඌ·ͰεΫϩʔϧ͞ΕͨݕΛ͢ΔͨΊՃ εςʔλεόʔλοϓͷݕ ͬͪ͜ʹ͘Δʂ
ແԠʂ
4DB ff PME -JTU7JFX 1SJNBSZ4DSPMM$POUSPMMFS 4DSPMM$POUSPMMFS εΫϩʔϧόʔΛग़ͨ͠Γ Ϧετඌ·ͰεΫϩʔϧ͞ΕͨݕΛ͢ΔͨΊՃ εςʔλεόʔλοϓͷݕ ͬͪ͜ʹ͘Δʂ
ແԠʂ 1SJNBSZ4DSPMM$PUSPMMFSͷ λοϓݕΛΩϟον͢Εྑ͍ʂ
class _FakeScrollPositionWithSingleContext extends ScrollPositionWithSingleContext { _FakeScrollPositionWithSingleContext({ required BuildContext context, required
Future<void> Function() callback, }) : _callback = callback, super( physics: const NeverScrollableScrollPhysics(), context: _FakeScrollContext(context), ); final Future<void> Function() _callback; @override Future<void> animateTo( double to, { required Duration duration, required Curve curve, }) { return _callback.call(); } }
class _FakeScrollPositionWithSingleContext extends ScrollPositionWithSingleContext { _FakeScrollPositionWithSingleContext({ required BuildContext context, required
Future<void> Function() callback, }) : _callback = callback, super( physics: const NeverScrollableScrollPhysics(), context: _FakeScrollContext(context), ); final Future<void> Function() _callback; @override Future<void> animateTo( double to, { required Duration duration, required Curve curve, }) { return _callback.call(); } } ͕ࣗͨͪͨ͠ ίʔϧόοΫ͕ݺΕΔΑ͏ʹ
class _FakeScrollPositionWithSingleContext extends ScrollPositionWithSingleContext { _FakeScrollPositionWithSingleContext({ required BuildContext context, required
Future<void> Function() callback, }) : _callback = callback, super( physics: const NeverScrollableScrollPhysics(), context: _FakeScrollContext(context), ); final Future<void> Function() _callback; @override Future<void> animateTo( double to, { required Duration duration, required Curve curve, }) { return _callback.call(); } } ͕ࣗͨͪͨ͠ ίʔϧόοΫ͕ݺΕΔΑ͏ʹ 4DSPMM1PTJUJPO8JUI4JOHMF$POUFYUΛ ܧঝِͨ͠Λ࡞Δʂ
final primaryScrollController = PrimaryScrollController.maybeOf(Navigator.of(context).context) ?? PrimaryScrollController.maybeOf(context); if (primaryScrollController == null)
return; final scrollPositionWithSingleContext = _FakeScrollPositionWithSingleContext( context: context, callback: widget.onTap, ); primaryScrollController.attach(scrollPositionWithSingleContext);
final primaryScrollController = PrimaryScrollController.maybeOf(Navigator.of(context).context) ?? PrimaryScrollController.maybeOf(context); if (primaryScrollController == null)
return; final scrollPositionWithSingleContext = _FakeScrollPositionWithSingleContext( context: context, callback: widget.onTap, ); primaryScrollController.attach(scrollPositionWithSingleContext); ͦͷِΛ 1SJNBSZ4DSPMM$POUSPMMFSʹΞλονʂ
None
None
J1IPOFඪ४ͱൺͯ ֆจࣈͷදࣔখ͘͞ͳ͍ʁ
None
None
SwiftUI Flutter
SwiftUI Flutter
SwiftUI Flutter খ͍͞Θʂʂʂ
ྗٕͰ ղܾ
import 'package:flutter/material.dart'; class EmojiUtil { static const r = r'[#*0-9]\uFE0F?\u20E3|[\xA9\xAE\u203C\u2049\u2122\u2139\u2194-
\u2199\u21A9\u21AA\u231A\u231B\u2328\u23CF\u23ED- \u23EF\u23F1\u23F2\u23F8- \u23FA\u24C2\u25AA\u25AB\u25B6\u25C0\u25FB\u25FC\u25FE\u2600- \u2604\u260E\u2611\u2614\u2615\u2618\u2620\u2622\u2623\u2626\u262A\u262E \u262F\u2638-\u263A\u2640\u2642\u2648- \u2653\u265F\u2660\u2663\u2665\u2666\u2668\u267B\u267E\u267F\u2692\u2694 - \u2697\u2699\u269B\u269C\u26A0\u26A7\u26AA\u26B0\u26B1\u26BD\u26BE\u26C4 \u26C8\u26CF\u26D1\u26E9\u26F0- \u26F5\u26F7\u26F8\u26FA\u2702\u2708\u2709\u270F\u2712\u2714\u2716\u271D \u2721\u2733\u2734\u2744\u2747\u2757\u2763\u27A1\u2934\u2935\u2B05- \u2B07\u2B1B\u2B1C\u2B55\u3030\u303D\u3297\u3299]\uFE0F?| [\u261D\u270C\u270D](?:\uFE0F|\uD83C[\uDFFB-\uDFFF])?|[\u270A\u270B](?: \uD83C[\uDFFB-\uDFFF])?|[\u23E9- \u23EC\u23F0\u23F3\u25FD\u2693\u26A1\u26AB\u26C5\u26CE\u26D4\u26EA\u26FD \u2705\u2728\u274C\u274E\u2753-\u2755\u2795-\u2797\u27B0\u27BF\u2B50]| \u26D3\uFE0F?(?:\u200D\uD83D\uDCA5)?|\u26F9(?:\uFE0F|\uD83C[\uDFFB-
text.splitMapJoin( EmojiUtil.regex, onMatch: (m) { final emojiCharacters = m.group(0)!.characters; for
(final emojiCharacter in emojiCharacters) { state._add(emojiCharacter, true); } return ''; }, onNonMatch: (s) { if (s == '\u200D') { // ZeroWidthJoinerֆจࣈͱͯ͠ొ͓ͯ͘͠ state._add(s, true); } else { state._add(s, false); } return ''; }, ); return state._build(); } }
text.splitMapJoin( EmojiUtil.regex, onMatch: (m) { final emojiCharacters = m.group(0)!.characters; for
(final emojiCharacter in emojiCharacters) { state._add(emojiCharacter, true); } return ''; }, onNonMatch: (s) { if (s == '\u200D') { // ZeroWidthJoinerֆจࣈͱͯ͠ొ͓ͯ͘͠ state._add(s, true); } else { state._add(s, false); } return ''; }, ); return state._build(); } } ड͚औͬͨςΩετΛ ֆจࣈͱจࣈʹׂ
TextStyle _emojiStyle(TextStyle textStyle, double originalFontSize) { if (Platform.isAndroid) { return
textStyle; } else { return textStyle.copyWith( fontSize: textStyle.fontSize! * 1.4, fontFamilyFallback: [], height: 1.0, ); } } ͱΓ͋͑ͣഒʹͯ͠ΈΔʂ
Before After
࣮ࡍͷϓϩμΫτͰͪ͜ΒͷJTTVFΛࢀߟʹɼϑΥϯτͷେ͖͞ʹΑͬͯֆจࣈͷഒΛม͑ͨΓ จࣈͱ֦େֆจࣈͷηϯλʔϥΠϯΛἧ͑ͨΓ͍ͯ͠·͢ʂ
None
ͳΜ͔J1IPOFͩͱ จࣈ͕ࡉͯ͘ݟʹ͍͘ؾ͕͢Δʜ
SwiftUI Flutter
None
None
ϑΥϯτϨϯμϦϯά࣌ͷ ΞϯνΤΠϦΞεͷೱ͕ωΠςΟϒͱҧ͏ʂ
ྗٕͰ ղܾ
return Scaffold( backgroundColor: Colors.white, appBar: AppBar( title: Text(widget.title), ), body:
const Center( child: Stack( children: [ Text( 'Hello, FlutterKaigi 2024 LT!', style: TextStyle(fontSize: 24), ), Text( 'Hello, FlutterKaigi 2024 LT!', style: TextStyle(fontSize: 24), ), ], ), ), );
ild: Stack( children: [ Text( 'Hello, FlutterKaigi 2024 LT!', style:
TextStyle(fontSize: 24), ), Text( 'Hello, FlutterKaigi 2024 LT!', style: TextStyle(fontSize: 24), ),
Before After
˞࣮ࡍͷϓϩμΫτͰͪ͜ΒͷJTTVFίϝϯτIUUQTHJUIVCDPN fl VUUFS fl VUUFSJTTVFTJTTVFDPNNFOUΛࢀߟʹ ͨͩ4UBDLͰॏͶΔͷͰͳ͘4USPLFΛௐͯͨ͠Γ͠·͢ʂ
Sample GitHub: https://github.com/kno3a87/flutterkaigi-2024-lt ͓ΘΓ
,VOP"ZBOB גࣜձࣾ.*9*ͨΜΆΆࣨ 'MVUUFS,BJHJӡӦελοϑ