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
開発 4 年目のアプリへの Kotlin 導入
Search
Ryutaro Miyashita
January 26, 2018
Technology
0
410
開発 4 年目のアプリへの Kotlin 導入
DroidKaigi Prelude #dk_prelude
Ryutaro Miyashita
January 26, 2018
Tweet
Share
More Decks by Ryutaro Miyashita
See All by Ryutaro Miyashita
Java で書かれた Android アプリを Kotlin で書き直すまでの話 / Talk of rewrite Android app for Java to Kotlin
ryugoo
0
1.6k
チーム開発と Android アプリの構成
ryugoo
5
1.2k
開発 4 年目のアプリへの Kotlin 導入
ryugoo
1
2.6k
Either で想定内のエラーと想定外のエラーを別ものにしたい!
ryugoo
2
1.6k
全て S になる -RxJava と LWS を持ち込む楽しさ-
ryugoo
4
720
Transition at RxJava 1.x to 2.x
ryugoo
0
520
Kotlin さんと誕生日が近いだけの男の話
ryugoo
2
500
Android エンジニアになって 2 年の学び
ryugoo
1
2.6k
年末だしお掃除をしよう!
ryugoo
0
770
Other Decks in Technology
See All in Technology
Alignment and Autonomy in Cybozu - 300人の開発組織でアラインメントと自律性を両立させるアジャイルな組織運営 / RSGT2025
ama_ch
1
2.4k
GoogleのAIエージェント論 Authors: Julia Wiesinger, Patrick Marlow and Vladimir Vuskovic
customercloud
PRO
0
160
RubyでKubernetesプログラミング
sat
PRO
4
160
データ基盤におけるIaCの重要性とその運用
mtpooh
4
530
20250116_JAWS_Osaka
takuyay0ne
2
200
2025年の挑戦 コーポレートエンジニアの技術広報/techpr5
nishiuma
0
140
FODにおけるホーム画面編成のレコメンド
watarukudo
PRO
2
280
デジタルアイデンティティ人材育成推進ワーキンググループ 翻訳サブワーキンググループ 活動報告 / 20250114-OIDF-J-EduWG-TranslationSWG
oidfj
0
540
My small contributions - Fujiwara Tech Conference 2025
ijin
0
1.4k
デジタルアイデンティティ技術 認可・ID連携・認証 応用 / 20250114-OIDF-J-EduWG-TechSWG
oidfj
2
680
Godot Engineについて調べてみた
unsoluble_sugar
0
410
Git scrapingで始める継続的なデータ追跡 / Git Scraping
ohbarye
5
500
Featured
See All Featured
Imperfection Machines: The Place of Print at Facebook
scottboms
267
13k
Designing for humans not robots
tammielis
250
25k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
127
18k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
33
2.7k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
27
1.5k
Building a Scalable Design System with Sketch
lauravandoore
460
33k
Keith and Marios Guide to Fast Websites
keithpitt
410
22k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
10
870
The World Runs on Bad Software
bkeepers
PRO
66
11k
Facilitating Awesome Meetings
lara
51
6.2k
Faster Mobile Websites
deanohume
305
30k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
38
1.9k
Transcript
։ൃͷΞϓϦͷ,PUMJOಋೖ %SPJE,BJHJ1SFMVEF!%F/"
ٶԼཽେ $IBU8PSLגࣜձࣾ ΫϥΠΞϯτΞϓϦέʔγϣϯ։ൃ෦ !SZVHPP@
,PUMJO
։ൃͷΞϓϦͷ,PUMJOಋೖ ‣ ͷ(PPHMF*0Ͱެࣜ։ൃݴޠԽͨ͠ Ҏલ͔Βಋೖݕ౼͍ͯͨ͠ ެࣜαϙʔτ͕ಘΒΕͨ͜ͱͰ҆৺Λಘͨ ཌ͔ΒಋೖΛ։࢝ͨ͠ʜ͔͠͠ʜ ‣
طଘͷΞϓϦͷಋೖͲ͏ͨ͠Βྑ͍ͷ͔ʁ Ͳ͔͜Βʁ શͯॻ͖͑Δʁ ϋοΩϦ͍ͯ͠ͳ͍͕ɺͬͯΈΑ͏
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ ಋೖॳશͯΛ,PUMJOԽ͢Δ༧ఆແ͔ͬͨ ͡Ί৽ن%JBMPH'SBHNFOU͔Β։࢝ ࣍ʹطଘͷ"DUJWJUZΛ,PUMJOԽ ͦͷޙɺ৽نίʔυΛ,PUMJOͰՃ ‣
+BWBͱͷͭͳ͗ࠐΈ͕ωοΫʹͳ͍ͬͯ͘ !+WN'JFME!+WN4UBUJD!+WN0WFSMPBET SFUVSO6OJU*/45"/$& 1MBUGPSN5ZQFT
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ !+WN'JFME!+WN4UBUJD!+WN0WFSMPBET DPNQBOJPOPCKFDUதʹॻ͘ͱTUBUJDʹల։ class SomeFragment : Fragment() {
companion object { @JvmField val TAG: String = SomeFragment::class.java.simpleName } }
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ !+WN'JFME!+WN4UBUJD!+WN0WFSMPBET DPNQBOJPOPCKFDUதʹॻ͘ͱTUBUJDʹల։ class SomeFragment : Fragment() {
companion object { @JvmStatic fun newInstance() = SomeFragment() } }
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ !+WN'JFME!+WN4UBUJD!+WN0WFSMPBET σϑΥϧτҾ͕͋Δ͚ͩΦʔόʔϩʔυ class SomeFragment : Fragment() {
companion object { @JvmStatic @JvmOverloads fun newInstance(id: Long, name: String = "") = SomeFragment() } }
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ SFUVSO6OJU*/45"/$& ؔΛҾʹऔΔॲཧΛ+BWB͔Βݺͼग़͢ͱʁ class Model { fun async(callback:
() -> Unit) { // Some asynchronous processing callback() } }
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ SFUVSO6OJU*/45"/$& lWPJEzͳ͍ͷͰɺl6OJUzΛฦ͢ඞཁ͕͋Δ Model model = new Model();
model.async(() -> { // Some callback processing return Unit.INSTANCE; });
IUUQTEJTDVTTLPUMJOMBOHPSHUKBWBJOUFSPQVOJUDMPTVSFTSFRVJSFEUPSFUVSOLPUMJOVOJU !+WN7PJEͷఏҊ ʹಉ͡ఏى
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ 1MBUGPSN5ZQFT /PO/VMM·ͨ/VMMBCMF͔͠Εͳ͍ܕ "OESPJE4%,جຊతʹ1MBUGPSN5ZQFT !/PO/VMM!/VMMBCMF͕͍͍ͯΕϋοϐʔ val
inflater = LayoutInflater.from(this) ˡฦΓʹlz͕͍͍ͯΔ
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ "OESPJE4%,Ͱ͋ΕதΛݟΔ public static LayoutInflater from(Context context) { LayoutInflater
LayoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); if (LayoutInflater == null) { throw new AssertionError("LayoutInflater not found."); } return LayoutInflater; } val inflater: LayoutInflater = LayoutInflater.from(this) ˡͲ͏ΒOVMMʹͳΒͳ͍Β͍͠ ˣ/PO/VMMܕͱͯ͠ѻ͏Α͏ʹ͢Δ
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ "OESPJE4%,Ͱ͋ΕதΛݟΔ lTPVSDFTz͕͋ΔͳΒ"OESPJE4UVEJPͰ $ISPNFͷ"OESPJE4%,4FBSDIΦεεϝ ‣ IUUQCJUMZBOESPJETELTFBSDI
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ "OESPJE4%,Ͱ͋ΕதΛݟΔ lTPVSDFTz͕͋ΔͳΒ"OESPJE4UVEJPͰ $ISPNFͷ"OESPJE4%,4FBSDIΦεεϝ ‣ IUUQCJUMZBOESPJETELTFBSDI ˡιʔεϑΝΠϧͷϦϯΫ͕͘
݁શͯ,PUMJOԽͨ͠ํ͕ϝϦοτ͕େ͖͍ ‣ ࣗୡ͕ॻ͍ͨίʔυʁ !/PO/VMM!/VMMBCMFΛ͚͍ͯ͘ʁ ͍ͬͦͷ͜ͱ,PUMJOʹͯ͠͠·ͬͨํ͕ʁ ‣ ͭͣͭ,PUMJOԽ͍ͯ͘͠
ؔ࿈͢Δ+BWBʹΞ ϊςʔγϣϯΛ͚Δ যΒͣɺΏͬ͘ΓͱͰશͯΛ,PUMJOԽ͢Δ
ݱঢ়
+BWBͷΛ,PUMJOԽ ‣ ϲ݄Ͱؒʹॻ͍ͨ+BWBͷ͕,PUMJOԽ ‣ ϑΝΠϧ ,PUMJO +BWB
+BWBͷΛ,PUMJOԽ ‣ ϲ݄Ͱؒʹॻ͍ͨ+BWBͷ͕,PUMJOԽ ‣ νʔϜͷޮՌ /PO/VMM/VMMBCMFΛڧ͘ҙࣝ͢ΔΑ͏ʹͳͬͨ ‣ !/PO/VMM!/VMMBCMFΞ ϊςʔγϣϯͷ͚Ε͕ͳ͍
‣ ݴޠػೳʹ/VMMTBGFUZ͕͋Δํ͕Εͳ͍͠ҙࣝ͢Δ ‣ ͜Ε·Ͱ+BWBͰ0QUJPOBM"1*͍ͬͯͨ ‣ ͨͩɺ0QUJPOBMΛ͍ͬͯΔͱ,PUMJOଆͰ໘ʜʜ
+BWBͷΛ,PUMJOԽ ‣ ϲ݄Ͱؒʹॻ͍ͨ+BWBͷ͕,PUMJOԽ ‣ νʔϜͷޮՌ ൣғͷWBSΛආ͚ΔΑ͏ʹͳͬͨ ‣ ΠϯελϯεϓϩύςΟͰ͖Δ͚ͩWBM ‣
ϝιουͳͲڱ͍ൣғͰWBS͍ͬͯΔ ‣ -JTU.VUBCMF-JTUͳͲҙࣝతʹ͍͚Λ͍ͯ͠Δ
͓͠·͍ %SPJE,BJHJ1SFMVEF!%F/"