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
「iOSエンジニアだし、Androidアプリも作れるでしょ?」
Search
akatsuki174
September 20, 2020
Programming
9
3.5k
「iOSエンジニアだし、Androidアプリも作れるでしょ?」
2020/09/20 iOSDC Japan 2020 day 1
akatsuki174
September 20, 2020
Tweet
Share
More Decks by akatsuki174
See All by akatsuki174
私が変えてきたこと、変えなかったこと
akatsuki174
2
420
最近読んでいる本-読書シェア会vol.1
akatsuki174
2
190
SwiftUI、UIKitでキャプチャを撮ろう!
akatsuki174
1
86
Appleにおけるプライバシーの全容を把握する
akatsuki174
0
5.7k
近年のAppleにおける位置情報とプライバシー
akatsuki174
3
450
オフライン勉強会ぼっち対策
akatsuki174
1
640
Xcode 15の新機能
akatsuki174
0
2.8k
AndroidにもSelect Photosがやってきた
akatsuki174
0
1.4k
Famm Android改善記
akatsuki174
0
390
Other Decks in Programming
See All in Programming
VS Code Update for GitHub Copilot
74th
2
630
Rubyでやりたい駆動開発 / Ruby driven development
chobishiba
1
660
今ならAmazon ECSのサービス間通信をどう選ぶか / Selection of ECS Interservice Communication 2025
tkikuc
21
3.9k
プロダクト志向ってなんなんだろうね
righttouch
PRO
0
180
明示と暗黙 ー PHPとGoの インターフェイスの違いを知る
shimabox
2
480
ruby.wasmで多人数リアルタイム通信ゲームを作ろう
lnit
3
450
Node-RED を(HTTP で)つなげる MCP サーバーを作ってみた
highu
0
120
設計やレビューに悩んでいるPHPerに贈る、クリーンなオブジェクト設計の指針たち
panda_program
6
2k
LINEヤフー データグループ紹介
lycorp_recruit_jp
1
2.4k
Hypervel - A Coroutine Framework for Laravel Artisans
albertcht
1
110
ISUCON研修おかわり会 講義スライド
arfes0e2b3c
1
430
iOS 26にアップデートすると実機でのHot Reloadができない?
umigishiaoi
0
130
Featured
See All Featured
Optimizing for Happiness
mojombo
379
70k
Designing Experiences People Love
moore
142
24k
YesSQL, Process and Tooling at Scale
rocio
173
14k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
161
15k
Bash Introduction
62gerente
614
210k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
3.9k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.8k
Mobile First: as difficult as doing things right
swwweet
223
9.7k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
281
13k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
229
22k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.7k
Build your cross-platform service in a week with App Engine
jlugia
231
18k
Transcript
ʮiOSΤϯδχΞͩ͠ɺ AndroidΞϓϦ ࡞ΕΔͰ͠ΐʁʯ iOSDC Japan 2020 @akatsuki174
ࣗݾհ
• ਢ౻ຘʢ@akatsuki174ʣ • iOS→AndroidΤϯδχΞ • גࣜձࣾTimersॴଐ • ࠷ۙiOSࣄͰͬͯΔ • Αͬͯ͘ΔɺiPhone
Xͱ Pixel 3 • iOSDC Japan 2020 core staff
ࠓͷ
࣍ • iOS/AndroidͷUIͰҧ͏ͱ͜Ζ • Swiftͱൺֱͭͭ͠KotlinΛֶ΅͏ • ActivityɺFragmentΛཧղ͠Α͏ • Α͘͏ListViewͱRecyclerViewΛΖ͏ •
؆୯ͳUI͕ΊΔΑ͏ʹͳΖ͏ • ࠷ݶͷσόοά͕Ͱ͖ΔΑ͏ʹͳΖ͏
ͳΜͱͳ͘Ͱ͖ΔΑ͏ʹͳΔ͜ͱ • iOS/Androidͷҧ͍͕Θ͔Δ • Kotlinίʔυ͕ಡΊΔΑ͏ʹͳΔ • AndroidΞϓϦͷ࡞Γํ͕Θ͔Δ • ෆ۩߹ͷಛఆ͕Ͱ͖ΔΑ͏ʹͳΔ
ࠓͷࢿྉ
ࠓͷࢿྉ • SpeakerDeckʹ্͛ͯ·͢ • TwitterͰྲྀͯ͠·͢
iOS/AndroidͷUIͰ ҧ͏ͱ͜Ζ
ࣅͯΔ͚Ͳɺҧ͏ • iOS/AndroidͰࣅͯΔͷʹ͍ͭͯઆ໌ • ࣅͯͯࡉ෦͕ҟͳ͍ͬͯͨΓ͢ΔͷͰ҆қ ʹஔ͖͑ΒΕͳ͍͜ͱ
ը໘ભҠ • iOS • ϓογϡભҠ͕ج࣠ɻ֊Λ۷ΔΠϝʔδɻ • ঢ়گʹΑͬͯɺϞʔμϧભҠ • Android •
ϖʔδΛੵΈॏͶΔΠϝʔδɻ
ΔϘλϯͷ༗ແ • iOS • ΄΅ඞ͍͍ͣͭͯΔ • Android • ͍ͭͯͳ͍͜ͱ͋Δ •
ʹΔϘλϯ͕͋Δ
J04 "OESPJE
ը໘λΠτϧͷҐஔ • iOS • தԝ • ϥʔδλΠτϧͩͱࠨ • Android •
ࠨ
J04 "OESPJE
ཁૉબ • iOS • ϦετɺυϥϜϩʔϧɺΞΫγϣϯγʔτ • Android • νΣοΫϘοΫεɺϥδΦϘλϯɺυϩοϓ μϯϦετɺϘτϜγʔτ
J04 "OESPJE
Ϧετͷҹ • iOS • Disclosure IndicatorΛ͚ͨΓ͢Δ • Android • ͚ͳ͍ํ͕Ұൠతʁ
J04 "OESPJE
બ • iOS • υϥϜϩʔϧ • iOS 14͔ΒΧϨϯμʔܕ • Android
• ΧϨϯμʔܕ
"OESPJE J04
ϑϩʔςΟϯάΞΫγϣϯϘλϯ • ͦͷը໘ͷओΞΫγϣϯϘλϯ • iOSͰ͍ͬͯΔྫͪΒ΄Β
None
γϟυ • ϚςϦΞϧσβΠϯʹӨͷষ͕͋Δ • Z࣠ɺಈ͖ͷํΛ֮ͤ͞Δ • Өͷೱ͞ߴ͞ɺଞͱͷؔʹΑܾͬͯ·Δ
https://material.io/design/environment/light-shadows.html#shadows ᶃ ᶄ ᶅ
φϏήʔγϣϯυϩϫʔ • iOS • كʹͦΕͬΆ͍ͷ͕͋Δ • Android • ը໘ࠨ͔ΒεϥΠυͯ͠දࣔͰ͖Δϝχϡʔ
None
ࢀߟʹͳΔαΠτ • consim • iOS/Androidͷը໘ΛൺֱͰ͖ΔαΠτ • https://consim.design/ • ʮAndroidiOSͱಉ͡σβΠϯͰʂʯͱݴΘΕͨͱ͖ͷ ରԠҊ
• https://qiita.com/ogapants/items/ 8a551ed3b16bcf0cc3ed
Swiftͱൺֱͭͭ͠ KotlinΛֶ΅͏
Kotlinͱ • JetBrains͕։ൃͨ͠ΦϒδΣΫτࢦɹɹɹ ϓϩάϥϛϯάݴޠ • Google I/O 2017ͰAndroidνʔϜ͕KotlinΛ ެࣜʹαϙʔτ͢Δ͜ͱΛൃද •
Javaͷࢿ࢈ͷଟ͘Λྲྀ༻Ͱ͖Δ • 1ͭͷϓϩδΣΫτʹJavaͱKotlinͷࠞࡏՄ
KotlinͱSwift • ΘΓͱॻ͖ํ͕ࣅͯΔ • جຊจ๏Ͱࣅ͍ͯΔͷΛհ
ϓϩύςΟએݴ
Φϓγϣφϧ
Ξϯϥοϓ
ؔ
ྻૢ࡞
Ϋϥε֦ு
ΠϯλʔϑΣʔεɺϓϩτίϧ
ͦͷଞ
ActivityɺFragmentΛ ཧղ͠Α͏
ActivityͱFragment • MVCͰݴ͏ͱ͜ΖͷControllerΈ͍ͨͳͷ • ϥΠϑαΠΫϧΛ͍࣋ͬͯΔ
Activityͱ • ௨ৗɺ1ͭͷActivityͰ1ͭͷը໘Λ࣮͢Δ • ≒ UIViewController
https://developer.android.com/guide/components/ activities/activity-lifecycle?hl=ja
"DUJWJUZ ੜ࣌ "DUJWJUZ͔ΒΕΑ ͏ͱ͍ͯ͠ΔɻӬଓԽॲཧ ͜͜Ͱɻ Ϣʔβ͕ΠϯλϥΫ γϣϯΛ࣮ࢪͰ͖Δঢ়ଶ "DUJWJUZ͕ ݟ͑ͳ͘ͳͬͨͱ͖ https://developer.android.com/guide/components/
activities/activity-lifecycle?hl=ja
ActivityͷϨΠΞτ • Activity#onCreate(Bundle)ͷதͰ Activity#setContentView(int)Λݺͼग़͢ • intϨΠΞτϑΝΠϧͷid
Fragmentͱ • ActivityʹΈࠐΜͰ͏ • 1ͭͷActivityʹෳͷFragmentΛΈ߹Θͤɹ ΒΕΔ • ଟղ૾ରԠ࣌ʹศར • ෳͷActivityͰFragmentΛ࠶ར༻Ͱ͖Δ
https://developer.android.com/guide/ components/fragments?hl=ja#Creating
https://developer.android.com/guide/ components/fragments?hl=ja#Creating 'SBHNFOU͕ "DUJWJUZʹ Έࠐ·Εͨঢ়ଶ 'SBHNFOU ͕࣋ͭ 7JFXΛߏங 'SBHNFOU ͕"DUJWJUZ͔Β
Γ͞ΕΔ
https://developer.android.com/guide/components/fragments?hl=ja#Design
Α͘͏ListViewͱ RecyclerViewΛΖ͏
ListViewͱ • Androidͷॳظ͔Β༻ҙ͞Ε͍ͯΔΫϥε • γϯϓϧͳҰཡදࣔ
ొਓͷΠϝʔδ %BUB4PVSDF "EBQUFS -JTU7JFX $VSTPS "SSBZ-JTU FUD
ListViewʢ࣮ʣ
ListViewʢϨΠΞτʣ
RecyclerViewͱ • ListViewΛ֦ுͯ͠ॊೈੑΛͨͤͨվྑ൛ • εϫΠϓɺD&DͳͲΛ͢ΔͳΒͬͪ͜ • ϔομʔɺϑολʔͷΈଘࡏ͠ͳ͍ • ۠ΓઢࣗͰ࣮͢Δඞཁ͕͋Δ
ొਓͷΠϝʔδ %BUB4PVSDF "EBQUFS 7JFX)PMEFS 3FDZDMFS7JFX -BZPVU.BOBHFS
RecyclerViewʢຊମʣ
RecyclerViewʢAdapterʣ
RecyclerViewʢViewHolderʣ
RecyclerViewʢϨΠΞτʣ
RecyclerViewʢϨΠΞτʣ
؆୯ͳUI͕ ΊΔΑ͏ʹͳΖ͏
AndroidͷϨΠΞτͷ࡞Γํ • xmlͰهड़ɺ͘͠GUIͰ࡞ ʢStoryboard, xibΈ͍ͨͳ͔Μ͡ʣ • ͍ͣΕʹͯ͠xml͕ੜ͞ΕΔ
None
None
None
LayoutsͱWidgets • LayoutͰΛࢦఆ͠ɺ෦ͱͳΔWidgetΛɹ ฒ͍ͯ͘ • WidgetʹButton, ImageView, TextView, ListViewͳͲ͕͋Δ
-BZPVU 8JEHFU -BZPVU
͞·͟·ͳϓϩύςΟ • LayoutɺWidgetiOSͱಉ͡Α͏ʹɺ༷ʑͳɹ ઃఆΛՃ͑Δ͜ͱ͕Ͱ͖Δ • ͪΖΜLayout/WidgetʹΑͬͯઃఆͰ͖Δɹ ϓϩύςΟҟͳΔ • ͜͜ͰදతͳͷΛհ
id • ݴ༿௨Γɺࣝผࢠ • ಉҰϑΝΠϧͰҰҙͳ໊લʹͳ͍ͬͯΕɹ ྑ͍ • xmlͰৼͬͨidΛݩʹKotlinϑΝΠϧ͔Βݺͼɹ ग़͕͠Ͱ͖Δ
None
None
width/height • ݴ༿௨Γɺ෯ͱߴ͞ • `match_parent`ͩͱͷViewʹର͍ͯͬ͠ͺ͍ ʹ͕Δ • `wrap_content`༰ʹ߹Θͤͯௐઅ͞ΕΔ • ͪΖΜઈରࢦఆՄ
None
ओͳLayoutͷछྨ • LinearLayout • ॎorԣ1ྻʹཁૉΛฒΔ • UIStackViewͬΆ͍͔Μ͡ • ConstraintLayout •
ཁૉʹ੍Λ͚ɺҐஔΛ૬ରతʹܾΊΔ
None
None
None
None
None
͓·͚ɿϓϨϏϡʔTips
༨ஊɿJetpack Compose • Google I/O 2019Ͱൃද͞ΕͨɺUIπʔϧΩοτ • SwiftUIͷΑ͏ʹɺએݴతʹUIΛߏஙͰ͖Δ
https://developer.android.com/jetpack/compose?hl=ja
࠷ݶͷσόοά͕ Ͱ͖ΔΑ͏ʹͳΖ͏
2௨Γհ • ϒϨʔΫϙΠϯτΛுΔํ๏ • Ϗϡʔ֊ΛѲ͢Δํ๏
ϒϨʔΫϙΠϯτͷுΓํ
None
None
None
͜Μͳέʔε͋Γ·ͤΜ͔ʁ • RecyclerViewͷpositionͳͲɺมΘΓΏ͘Λ Ѳ͍ͨ͠ • ͍͍ͪͪϒϨʔΫϙΠϯτͰࢭ·ͬͯ΄͘͠ɹ ͳ͍ • ίʔυʹLog.dॻ͍ͯ࠶Ϗϧυ͢Δͷ໘
ղܾͰ͖·͢ • Evaluate and logΛ׆༻͢Ε࠶Ϗϧυͤͣɹ ϩάΛग़ྗͰ͖Δ • ίʔυ͍͡Δඞཁ͕ͳ͍
None
None
None
Ϗϡʔ֊ͷݟํ • Layout InspectorΛ͏
None
·ͱΊ
·ͱΊ • iOSͷੈքΛ͍ͬͯΕAndroidͦ͜·Ͱɹ ͘͠ͳ͍ʂʂʂ
એ
• αʔόʔαΠυΤϯδχΞ (PHP, Golang, AWS) • AndroidΤϯδχΞ (Kotlin) • iOSΤϯδχΞ
(Swift) TimersͰݱࡏΤϯδχΞશ৬छ࠾༻தʂ ৄ͘͠”Timers”Ͱݕࡧ
͝ਗ਼ௌ ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ