barrel_file_for_flutter.pdf

FlutterのBarrel Fileを使って、importを分かりやすくするための解説をしました！

Transcript

1. FlutterͷBarrel Fileʹ ͍ͭͯ 2023/07/24 Daiki Asahi (ashdik) 1
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   !EBJLJ 'MVUUFSྺɿ
   ϲ݄ ϒϩάɿ
   IUUQTCMPHEBMUNF
3. ໨࣍ ɾBarrel Fileͱ͸ʁ ɾimport͸ॏཁͳͷ͔ʁ ɾexportΩʔϫʔυ ɾBarrel Fileͷ࡞Γํ 3
4. ໨࣍ ɾBarrel Fileͱ͸ʁ ɾimport͸ॏཁͳͷ͔ʁ ɾexportΩʔϫʔυ ɾBarrel Fileͷ࡞Γํ 4
5. Barrel Fileͱ͸ʁ 5 importΛ·ͱΊͨϑΝΠϧ 5
6. ໨࣍ ɾBarrel Fileͱ͸ʁ ɾimport͸ॏཁͳͷ͔ʁ ɾexportΩʔϫʔυ ɾBarrel Fileͷ࡞Γํ 6
7. 7 importจͷॏཁੑ ͲͷϑΥϧμʹґଘ͍ͯ͠Δ͔ʁ 7
8. υϝΠϯ ͲͷυϝΠϯ͕ͲͷυϝΠϯΛ஌͍ͬͯΔ͔ ϨΠϠʔ ٯࢀর͸ආ͚ͯɺґଘؔ܎ΛҰํ޲ʹ 8 importจͷॏཁੑ ͲͷϑΥϧμʹґଘ͍ͯ͠Δ͔ʁ 8
9. υϝΠϯ ͲͷυϝΠϯ͕ͲͷυϝΠϯΛ஌͍ͬͯΔ͔ ϨΠϠʔ ٯࢀর͸ආ͚ͯɺґଘؔ܎ΛҰํ޲ʹอͪ·͢ɻ 9 importจͷॏཁੑ ͲͷϑΥϧμʹґଘ͍ͯ͠Δ͔ʁ 9
10. υϝΠϯ ͲͷυϝΠϯ͕ͲͷυϝΠϯΛ஌͍ͬͯΔ͔ ϨΠϠʔ ٯࢀর͸ආ͚ͯɺґଘؔ܎ΛҰํ޲ʹอͪ·͢ɻ 10 importจͷॏཁੑ ͲͷϑΥϧμʹґଘ͍ͯ͠Δ͔ʁ 10 YOUTRUSTΞϓϦͷߏ଄ɺ๫࿐ͯ͠Έͨ more infoʁ https://speakerdeck.com/daiki1003/youtrustapurifalsegou-zao-bao-lu-sitemita
11. υϝΠϯ ͲͷυϝΠϯ͕ͲͷυϝΠϯΛ஌͍ͬͯΔ͔ ϨΠϠʔ ٯࢀর͸ආ͚ͯɺґଘؔ܎ΛҰํ޲ʹ 11 importจͷॏཁੑ ͲͷϑΥϧμʹґଘ͍ͯ͠Δ͔ʁ 11
12. υϝΠϯ ͲͷυϝΠϯ͕ͲͷυϝΠϯΛ஌͍ͬͯΔ͔ ϨΠϠʔ ٯࢀর͸ආ͚ͯɺґଘؔ܎ΛҰํ޲ʹ 12 importจͷॏཁੑ ͲͷϑΥϧμʹґଘ͍ͯ͠Δ͔ʁ 12 Flutter੡YOUTRUSTΞϓϦΛࢧ͑ΔϨΠϠʔߏ੒ more infoʁ https://tech.youtrust.co.jp/entry/app-layer-flutter
13. ໨࣍ ɾBarrel Fileͱ͸ʁ ɾimport͸ॏཁͳͷ͔ʁ ɾexportΩʔϫʔυ ɾBarrel Fileͷ࡞Γํ 13 13
14. DartϥΠϒϥϦͷҰ෦Λɺ ଞͷϥΠϒϥϦʹެ։͢ΔͨΊʹ࢖༻͢Δ 14 exportΩʔϫʔυ exportΩʔϫʔυͱ͸ʁ 14
15. ໨࣍ ɾBarrel Fileͱ͸ʁ ɾimport͸ॏཁͳͷ͔ʁ ɾexportΩʔϫʔυ ɾBarrel Fileͷ࡞Γํ 15 15
16. 16 Barrel Fileͷ࡞Γํ 16 lib/comic ᵓᴷᴷ model ɹ ᵓᴷᴷ attack_on_titan.dart ɹ ᵓᴷᴷ hunter_hunter.dart ɹ ᵓᴷᴷ kingdom.dart ɹ ᵋᴷᴷ one_piece.dart
17. 17 Barrel Fileͷ࡞Γํ 17 lib/comic ᵓᴷᴷ model ᴹ ᵓᴷᴷ attack_on_titan.dart ᴹ ᵓᴷᴷ hunter_hunter.dart ᴹ ᵓᴷᴷ kingdom.dart ᴹ ᵋᴷᴷ one_piece.dart ᵋᴷᴷ model.dart
18. 18 Barrel Fileͷ࡞Γํ 18 Before After
19. 19 Barrel Fileͷ࡞Γํ 19 શ෦ख࡞Γʁ
20. 20 Barrel Fileͷ࡞Γํ 20 શ෦ख࡞Γʁ εΫϦϓτͷར༻ Dart Barrel File Generator
21. 21 importจͷॏཁੑ ୹͍/গͳ͍͕ਖ਼ٛͰ͸ͳ͍ 21
22. lib.dartʁ 22 importจͷॏཁੑ ୹͍/গͳ͍͕ਖ਼ٛͰ͸ͳ͍ 22
23. 23 ·ͱΊ Barrel FileΛ࢖͏͜ͱͰimportΛߏ଄Խग़དྷΔ 23 importจ͸ͲͷϑΝΠϧ͕ͲͷϑΝΠϧʹґଘ͍ͯ͠Δ͔Λ஌ΔࢦඪͰ͋Δ ༻๏ɾཁྖΛकͬͯਖ਼͓͘͠࢖͍͍ͩ͘͞
24. 24 24 ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ