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Google I/O 2018 ʹݟΔ
͜Ε͔Βͷ
Android ΞϓϦ։ൃํ๏
͋Μ͍͟Ώ͖
@yanzm
Google I/O Extended Okinawa 2018
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• blog : Y.A.M ͷࡶهா
• y-anz-m.blogspot.com
• twitter : @yanzm ʢΜ͟Ήʣ
• uPhyca Inc. (גࣜձࣾϑΟΧ)
• Google Developer Expert for Android
͋Μ͍͟Ώ͖
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10 years
• ͍ΖΜͳ UI ͷྲྀߦΓ → OS ͷσβΠϯมભ → Material Design →
Material Theming
• ৽͍͠ػೳͷόοΫϙʔτ͕ཉ͍͠ → Support Library
• Ϣʔεέʔεʹର༷͠ʑͳ࣮ݱํ๏ → ϕετϓϥΫςΟε → Jetpack
• ͍ΖΜͳΞϓϦ͕ిΛফඅ → OS Ͱ੍ݶ → Doze, App Standby
• ΞϓϦͷαΠζ͕ͲΜͲΜͰ͔͘ͳͬͯେม → Android App Bundle
• ΞϓϦ͕ͲΜͲΜෳࡶʹͳͬͯେม → Android Architecture
Components
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Google Play upload ཁ݅
• targetSdkVersion Λ࠷৽ͷ stableʢࠓͩͱ 26ʣʹ͠ͳ͍
ͱ Google Play ʹ apk Λ upload Ͱ͖ͳ͘ͳΔ
• 20188݄ ʙ : ৽نͷΞϓϦ
• 201811݄ʙ : طଘͷΞϓϦ
• https://android-developers.googleblog.com/2017/12/
improving-app-security-and-performance.html
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Google Play upload ཁ݅
• native libraries 64-bit version Λఏڙ͠ͳ͍ͱ Google
Play ʹ apk Λ upload Ͱ͖ͳ͘ͳΔ
• 20198݄ ʙ
• https://android-developers.googleblog.com/2017/12/
improving-app-security-and-performance.html
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IDE : Android Studio
• https://developer.android.com/studio/
• IntelliJ IDEA ϕʔε
• ࠷৽ͷ stable : Android Studio 3.1
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IDE : Android Studio Preview
• https://developer.android.com/studio/preview/
• Canary Channel : Ұ൪࠷৽ͷ։ൃόʔδϣϯ
• Dev Channel : Canary ͷ࣍
• Beta Channel : Dev ͷ࣍
• Stable Channel : ҆ఆ൛
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Channel Setting
• [Android Studio] - [Preferences…] - [Appearance &
Behavior] - [System Settings] - [Updates]
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Emulator
• ࠓͷΤϛϡϨʔλΊͪΌ͍ʢੲ͔ͬͨʣ
• Play Store ೖΓ࡞ΕΔ
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ݴޠ
• Java
• Kotlin
• https://developer.android.com/kotlin/
• https://codelabs.developers.google.com/codelabs/build-
your-
fi
rst-android-app-kotlin/
• https://codelabs.developers.google.com/codelabs/taking-
advantage-of-kotlin/
• C++
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σβΠϯ
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Material Design
• https://material.io/
• Material Design is a visual language that synthesizes the
classic principles of good design with the innovation of
technology and science.
• Google I/O 2014 Ͱൃද
• Google ͕ਓͱ͓ۚͱ࣌ؒΛ͔͚ͯϦαʔν
• Develop : https://material.io/develop/
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Material Theming
• ϓϩμΫτͷϒϥϯυΛΑΓΑ͘өͤ͞ΔͨΊʹɺମܥ
తʹ Mateiral Design ΛΧελϚΠζ͢Δػೳ
• https://material.io/design/material-theming/#material-
theming
• Tools
• Material Theme Editor
• Gallery
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Material Theme Editor
• Sketch Plugin
• Sketch https://www.sketchapp.com/
• https://material.io/tools/theme-editor/
• ίʔυϥϘ
• https://codelabs.developers.google.com/codelabs/
theme-editor-designlab/
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Gallery
• https://gallery.io/login
• σβΠϯͨ͠ը໘ͷετοΫˍڞ༗
• Google Account ͰϩάΠϯ
• όʔδϣϯཧ
• ίϝϯτ
• Inspect, Material Components ͷϦϯΫ
• Material Theme Editor ࿈ܞ
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Upload from Sketch to Gallery
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Material Gallery App (Android, iOS)
• https://gallery.io/apps
• Gallery Project ͷ֤ image Λ
σόΠεͰදࣔ
• ίϝϯτೖྗ
https://www.youtube.com/watch?v=TIB3q68ZHYw
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ϨΠΞτ
• ConstraintLayout
• ੍ʢConstraintʣΛࢦఆͯ͠ View Λஔ
• ϨΠΞτΤσΟλରԠ
• https://developer.android.com/training/constraint-layout/
• CoordinatorLayout
• Behavior Λࢦఆͯ͠ View ͷಈ͖Λ੍ޚ
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ϨΠΞτΤσΟλ
• GUI ͰϨΠΞτΛฤू
• Android Ͱ XML ͰϨ
ΠΞτΛఆٛ
• GUI Ͱͷมߋ XML ʹ
ద༻͞ΕΔ
• https://
developer.android.com/
studio/write/layout-editor
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Support Library
To
AndroidX
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AndroidX
• ࠓ·Ͱͷ Support Library ͷ package ͱ artifact ͕มΘΔ
• android.support.* → androidx.* ͳͲ
• https://developer.android.com/topic/libraries/support-
library/refactor
• https://android-developers.googleblog.com/2018/05/hello-
world-androidx.html
• ͍··Ͱͷ package Ͱͷ Support Library 28.0.0 ͕࠷ޙͷ
ϦϦʔεʹͳΔ
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AndroidX
• ࣗͷΞϓϦͷιʔείʔυ͚ͩͰͳ͘ɺར༻͍ͯ͠Δϥ
ΠϒϥϦมߋ͕ඞཁ
• [Refactor] - [Refactor to AndroidX…]
• Android Studio 3.2 Canary
• compileSdkVersion 28 Ҏ্
• 28·ͩͳ͍ͷͰ “android-P”
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Android Jetpack
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What is Android Jetpack?
• Android Jetpack ͙͢Εͨ Android ΞϓϦΛ࡞ΔͨΊͷ
ίϯϙʔωϯτɾπʔϧɾΨΠμϯεͷηοτ
• https://android-developers.googleblog.com/2018/05/
use-android-jetpack-to-accelerate-your.html
• ͏Θͳ͍ࣗ༝
• ͍͍ͨͷ͚ͩ͑Α͍
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Jetpack : Foundation
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Foundation
• AppCompat : ඞਢ
• Android KTX : Kotlin Ͱ։ൃ͢ΔͳΒೖΕΔͱศར
• Multidex : ඞཁʹͳΕඞਢ
• Test : ඞਢ
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Jetpack : UI
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Animation & Transition
• ΄΅ඞਢ
• ObjectAnimator
• Transition Support Library
• DynamicAnimation
implementation 'com.android.support:transition:28.0.0-alpha1'
implementation 'androidx.transition:transition:1.0.0-alpha1'
implementation 'com.android.support:support-dynamic-animation:28.0.0-alpha1'
implementation 'androidx.dynamicanimation:dynamicanimation:1.0.0-alpha1'
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Emoji
• ΞϓϦͱͯ͠ඞཁͳΒ
implementation 'com.android.support:support-emoji-appcompat:28.0.0-alpha1'
implementation 'com.android.support:support-emoji-bundled:28.0.0-alpha1'
implementation 'com.android.support:support-emoji:28.0.0-alpha1'
implementation 'androidx.emoji:emoji-appcompat:1.0.0-alpha1'
implementation 'androidx.emoji:emoji-bundled:1.0.0-alpha1'
implementation 'androidx.emoji:emoji:1.0.0-alpha1'
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Fragment
• ΄΅ඞਢ
• Framework ͷ Fragment Deprecated
• Support Library ͷ Fragment Λ͏
implementation 'com.android.support:support-fragment:28.0.0-alpha1'
implementation 'androidx.fragment:fragment:1.0.0-alpha1'
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Layout
• AppCompat : ඞਢ
• ConstraintLayout : ඞਢ
• CoordinatorLayout : ΄΅ඞਢ
implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
implementation 'com.android.support.constraint:constraint-layout:28.0.0-alpha1'
implementation 'com.android.support:coordinatorlayout:28.0.0-alpha1'
implementation 'androidx.appcompat:appcompat:1.0.0-alpha1'
implementation 'androidx.constraintlayout:constraintlayout:1.1.0'
implementation 'androidx.coordinatorlayout:coordinatorlayout:1.0.0-alpha1'
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Design Support Library
• ඞਢ
• Material Design ʹରԠͨ͠ Components ू
implementation 'com.android.support:design:28.0.0-alpha1'
implementation 'com.google.android.material:material:1.0.0-alpha1'
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Palette
• ΞϓϦͷػೳͱͯ͠ඞཁͳΒ
• ը૾͔Β৭ΛϐοΫ͢ΔϥΠϒϥϦ
implementation 'com.android.support:palette-v7:28.0.0-alpha1'
implementation 'androidx.palette:palette:1.0.0-alpha1'
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Jetpack : Behavior
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Behavior
• Download Manager : μϯϩʔυػೳ͕ඞཁͳΒ
• Media & Playback : Իָಈը࠶ੜػೳ͕ඞཁͳΒ
• Permissions : ϥϯλΠϜύʔϛογϣϯରԠඞਢ
• Noti
fi
cations : Channel ରԠඞਢ
• Sharing : ڞ༗ػೳϢʔβϏϦςΟతʹ΄΅ඞਢ
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Slices
• New
• https://developer.android.com/guide/slices/
• ࣗͷΞϓϦͷใΛଞͷΞϓϦʹදࣔ͢ΔΈ
• Google Search ͕ 2018 summer ରԠ༧ఆ
implementation 'androidx.slice:slice-core:1.0.0-alpha2'
implementation 'androidx.slice:slice-builders:1.0.0-alpha2'
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Jetpack : Architecture
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Architecture
• Data Binding : ͍͚ͨΕ
• Lifecycles : LiveData Λ͏ͳΒ
• LiveData : ศར
• ViewModel : ͍͢͝ศར
• Room : ͍͚ͨΕ
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Navigation
• New
• ભҠؔΛ XML Ͱએ
ݴతʹ͔͚Δ
• ࣮ࡍͷભҠ࣌ʹ݁ہ
ίʔυ͕ඞཁ
• ศར·ͩΑ͘Θ͔
Βͳ͍
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Navigation
• https://developer.android.com/topic/libraries/architecture/
navigation/
• ίʔυϥϘ
• https://codelabs.developers.google.com/codelabs/
android-navigation/
implementation 'android.arch.navigation:navigation-fragment:1.0.0-alpha01'
implementation 'android.arch.navigation:navigation-ui:1.0.0-alpha01'
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WorkManager
• New
• API Level 14 Ҏ߱ʹରԠ
• ෦Ͱ JobScheduler ʢ͋Εʣ
FirebaseJobDispatcher AlarmManager Λར༻
• Background Service ͕γεςϜʹΑͬͯऴྃͤ͞ΒΕΔ
Α͏ʹͳͬͨͷͰɺWorkManager ʹΓସ͑Δ
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WorkManager
• ҰΓͷඇಉظॲཧɺఆظతͳλεΫɺ྆ํαϙʔτ
• ࣮ߦΛอূ
• ੍ʢωοτϫʔΫʹଓͨ࣌͠ɺిݯʹͭͳ͕ͬͨ࣌
ͳͲʣΛαϙʔτ
• WorkʢॲཧʣͷΈ߹ΘͤʢฒྻɺྻʣΛαϙʔτ
• Google Play Services ͕͑ͳ͍σόΠεOK
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WorkManager
• https://developer.android.com/topic/libraries/architecture/
workmanager
• ίʔυϥϘ
• https://codelabs.developers.google.com/codelabs/
android-workmanager/
implementation 'android.arch.work:work-runtime:1.0.0-alpha02'
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ϦϦʔε
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APK
• Android ΞϓϦͷܗ
ࣜ
• [Build] - [Build
Bundle(s) / APK(s)] -
[Build APK(s)]
• [Build] - [Generate
Signed Bundle / APK] -
[APK]
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APK analyzer
• [Build] - [Analyze APK…]
• APK ͷαΠζɺϦιʔεɺ
Manifest ͳͲ͕ݟΕΔ
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Android App Bundle
• ղ૾CPUͳͲσόΠ
εͷεϖοΫʹඞཁͳϦ
ιʔε͚ͩΠϯετʔϧ
͢ΔΈ
• [Build] - [Build Bundle(s) /
APK(s)] - [Build Bundle(s)]
• [Build] - [Generate Signed
Bundle / APK] - [Bundle]
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Android App Bundle
• https://developer.android.com/guide/app-bundle/
• https://developer.android.com/platform/technology/app-
bundle/
• ίʔυϥϘ
• https://codelabs.developers.google.com/codelabs/
your-
fi
rst-dynamic-app/
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·ͱΊ
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·ͱΊ
• ࠓޙ targetSdkVersion ࠷৽ͷ stable ʹ
• Material Theme EditorɺGallery ΛͬͯΈΑ͏
• Kotlin Ͱॻ͍ͯΈΑ͏
• Jetpack ͷػೳΛѲ͓ͯ͜͠͏
• ΞϓϦͷαΠζ͕େ͖͍ͳΒ Android App Bundle ͷར༻
Λݕ౼͠Α͏