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
How to keep data between orientation changes
Search
Masaki Ogata
April 20, 2017
Programming
7
2.5k
How to keep data between orientation changes
AbemaTVで実装している画面回転を支えるデータ保持についての話
Masaki Ogata
April 20, 2017
Tweet
Share
More Decks by Masaki Ogata
See All by Masaki Ogata
Jetpack Composeで始めるServer Cache State
ogaclejapan
2
230
AbemaTVを支えるアプリの優しさ / abematv_devcon_2017
ogaclejapan
3
6.6k
Architecture Components - Lifecycle library
ogaclejapan
3
2.6k
Your app name
ogaclejapan
1
2.9k
Flux de Relax :)
ogaclejapan
13
61k
Dagger2 has been released!
ogaclejapan
3
3.2k
Other Decks in Programming
See All in Programming
初学者でも今すぐできる、Claude Codeの生産性を10倍上げるTips
s4yuba
16
13k
新メンバーも今日から大活躍!SREが支えるスケールし続ける組織のオンボーディング
honmarkhunt
5
9k
フロントエンドのパフォーマンスチューニング
koukimiura
6
2.2k
Claude Code で Astro blog を Pages から Workers へ移行してみた
codehex
0
130
CIを整備してメンテナンスを生成AIに任せる
hazumirr
0
100
バイブコーディング超えてバイブデプロイ〜CloudflareMCPで実現する、未来のアプリケーションデリバリー〜
azukiazusa1
2
640
Android 16KBページサイズ対応をはじめからていねいに
mine2424
0
520
チームで開発し事業を加速するための"良い"設計の考え方 @ サポーターズCoLab 2025-07-08
agatan
1
480
Goで作る、開発・CI環境
sin392
0
270
状態遷移図を書こう / Sequence Chart vs State Diagram
orgachem
PRO
2
230
코딩 에이전트 체크리스트: Claude Code ver.
nacyot
0
970
Startups on Rails in Past, Present and Future–Irina Nazarova, RailsConf 2025
irinanazarova
0
270
Featured
See All Featured
Building Flexible Design Systems
yeseniaperezcruz
328
39k
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
234
17k
RailsConf 2023
tenderlove
30
1.2k
Building Better People: How to give real-time feedback that sticks.
wjessup
367
19k
Embracing the Ebb and Flow
colly
86
4.8k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
15
1.6k
Intergalactic Javascript Robots from Outer Space
tanoku
271
27k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
7
750
Rebuilding a faster, lazier Slack
samanthasiow
83
9.1k
Agile that works and the tools we love
rasmusluckow
329
21k
Building Adaptive Systems
keathley
43
2.7k
Rails Girls Zürich Keynote
gr2m
95
14k
Transcript
CA.apk #2 @CyberAgent Masaki Ogata ը໘ճసΛࢧ͑Δσʔλอ࣋ :)
ࣗݾհ Masaki Ogata CyberAgent, Inc. / AbemaTV, Inc. ogaclejapan @ogaclejapan
New
20174݄11ൃച ࢁށໜथɼࡔాߊҰɼࠇ༸ɼ౻ా ୖຏɼࢁాߤɼాࡔெɼ۽୩ࢠɼ ຊརതɼࡔຊେɼখܗণथɼླ େوɼࢤำါلɹஶ B5ʗ192ϖʔδ ఆՁʢຊମ1,980ԁʴ੫ʣ ISBN 978-4-7741-8863-8 https://goo.gl/Jcy3lJ
New
ը໘ճసΛࢧ͑Δσʔλอ࣋ :) by AbemaTV
2017/4 ॎରԠϦϦʔε͠·ͨ͠
Կ͕มΘͬͨͷ͔ʁ
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="tv.abema" > ... <activity android:name=".components.activity.MainActivity" android:configChanges="orientation|keyboardHidden| screenSize" android:screenOrientation="sensorLandscape"
android:theme="..." /> ... </manifest> AndroidManifest.xml
AndroidManifest.xml <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="tv.abema" > ... <activity android:name=".components.activity.MainActivity" android:configChanges="orientation|keyboardHidden| screenSize"
android:screenOrientation="sensorLandscape" android:theme="..." /> ... </manifest>
AndroidManifest.xml <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="tv.abema" > ... <activity android:name=".components.activity.MainActivity" android:screenOrientation="behind" android:theme="..."
/> ... </manifest>
Activity࠶ੜͱ ৽͍͠ੜ׆࢝Ί·ͨ͠$
ཧ༝̍ɿॎʗԣͰ࠷దͳUIΛ࣮ݱ͍ͨ͠
ཧ༝̎ɿMultiWindowʹରԠ͍ͨ͠
Activity࠶ੜԿ͕ͳͷ͔ʁ
Activity࠶ੜͷɿ • ϨΠΞτঢ়ଶͷ෮ݩ ʢChannelɺFullscreenɺ…ʣ • αʔόʔ͔Βऔಘͨ͠σʔλͷ࠶ར༻ • ॎʗԣͷը໘Γସ͑ͷγʔϜϨε͞
ҰൠతͳΞϓϩʔν
onSaveInstanceState(..)ͰBundleอଘ public class MainActivity extends AppCompatActivity { @Override protected void
onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putParcelable("foo", foo); ... } @Override protected void onCreate(Bundle savedInstanceState) { ... if (savedInstanceState != null) { Foo foo = savedInstanceState.getParcelable("foo"); }
(‘A`)ΫιΊΜͲͤ͐͘ʔʂ
AbemaTVͷΞϓϩʔν
onRetainCustomNonConfigurationInstance()ͰObjectฦ͢ public class MainActivity extends AppCompatActivity { @Override public Object
onRetainCustomNonConfigurationInstance() { return foo; } @Override protected void onCreate(Bundle savedInstanceState) { ... Object obj = getLastCustomNonConfigurationInstance(); if (obj instanceof Foo) { Foo foo = (Foo) obj; }
͜Εͩ! ! ‷( ŋŷŋ)و ̑̑ ŞƄŕ !
ͪΐͬ͜ͱιʔείʔυΛͬͯΈͨ
FragmentActivity.java public Object onRetainCustomNonConfigurationInstance() { return null; } @Override public
final Object onRetainNonConfigurationInstance() { ... Object custom = onRetainCustomNonConfigurationInstance(); ... NonConfigurationInstances nci = new NonConfigurationInstances(); nci.custom = custom; nci.fragments = fragments; nci.loaders = loaders; return nci; }
Activity.java public Object onRetainNonConfigurationInstance() { return null; } NonConfigurationInstances retainNonConfigurationInstances()
{ Object activity = onRetainNonConfigurationInstance(); ... NonConfigurationInstances nci = new NonConfigurationInstances(); nci.activity = activity; nci.children = children; nci.fragments = fragments; nci.loaders = loaders; ... return nci; }
ActivityThread.java public final ActivityClientRecord performDestroyActivity(IBinder token, boolean finishing) { return
performDestroyActivity(token, finishing, 0, false); } private ActivityClientRecord performDestroyActivity(IBinder token, boolean finishing, int configChanges, boolean getNonConfigInstance) { ActivityClientRecord r = mActivities.get(token); ... if (getNonConfigInstance) { try { r.lastNonConfigurationInstances = r.activity.retainNonConfigurationInstances(); ...
ActivityThread.java private void handleRelaunchActivity(ActivityClientRecord tmp) { ... handleDestroyActivity(r.token, false, configChanges,
true); ... ... handleLaunchActivity(r, currentIntent, ".."); ... } private Activity performLaunchActivity(...) { activity.attach(appContext, ..., r.lastNonConfigurationInstances, ...); ... r.lastNonConfigurationInstances = null;
Configuration ChangeʹΑΔ Activity࠶ੜ࣌ͷΈ෮ݩՄೳ
AbemaTVͰ Ͳ͏࣮͍ͯ͠Δͷ͔ʁ
AbemaTVͷΞʔΩςΫνϟɿ https://speakerdeck.com/ogaclejapan/flux-de-relax
AbemaTVͷFluxΞʔΩςΫνϟɿ
ը໘ճసͰഁغͤ͞ͳ͍DaggerͷComponentΛؚΊΔ @Override public ScreenComponent getScreenComponent() { if (screenComponent == null)
{ ScreenInstance retainedInstance = (ScreenInstance) getLastCustomNonConfigurationInstance(); if (retainedInstance == null) { ... screenComponent = Components.forApp(this).plus(...); } else { screenComponent = retainedInstance.component; } } return screenComponent; } @Override public Object onRetainCustomNonConfigurationInstance() { return new ScreenInstance(screenComponent, ...); }
AbemaTVͷDIίϯϙʔωϯτߏɿ AppComponent: ʢશମʣ ScreenComponent: ʢը໘୯Ґʣ ActivityComponent: ʢը໘୯Ґʣ ը໘ճసΛӽ͑ͯσʔλΛอ࣋͢ΔͨΊʹ ScreenίϯϙʔωϯτΛՃɻ
Activity࠶ੜͷɿ •ϨΠΞτঢ়ଶͷ෮ݩ ʢChannelɺFullscreenɺ…ʣ • αʔόʔ͔Βऔಘͨ͠σʔλͷ࠶ར༻ • ॎʗԣͷը໘Γସ͑ͷγʔϜϨε͞
͓ΘΓʹ /** * Return the value previously returned from *
{@link #onRetainCustomNonConfigurationInstance()}. */ @SuppressWarnings("deprecation") public Object getLastCustomNonConfigurationInstance() { NonConfigurationInstances nc = (NonConfigurationInstances) getLastNonConfigurationInstance(); return nc != null ? nc.custom : null; } d..deprecation!??
͞ͱϦεΫࢴҰॏ