Google I/O 2018 に見る これからの Android アプリ開発方法

Google I/O Extended Okinawa 2018
https://okipug.connpass.com/event/86509/

1. Google I/O 2018 ʹݟΔ ͜Ε͔Βͷ Android ΞϓϦ։ൃํ๏ ͋Μ͍͟Ώ͖ @yanzm Google I/O Extended Okinawa 2018
2. • blog : Y.A.M ͷࡶهா • y-anz-m.blogspot.com • twitter : @yanzm ʢ΍Μ͟Ήʣ • uPhyca Inc. (גࣜձࣾ΢ϑΟΧ) • Google Developer Expert for Android ͋Μ͍͟Ώ͖
4. 10 years • ͍ΖΜͳ UI ͷྲྀߦΓ → OS ͷσβΠϯมભ → Material Design → Material Theming • ৽͍͠ػೳͷόοΫϙʔτ͕ཉ͍͠ → Support Library • Ϣʔεέʔεʹର༷͠ʑͳ࣮ݱํ๏ → ϕετϓϥΫςΟε → Jetpack • ͍ΖΜͳΞϓϦ͕ి஑Λফඅ → OS Ͱ੍ݶ → Doze, App Standby • ΞϓϦͷαΠζ͕ͲΜͲΜͰ͔͘ͳͬͯେม → Android App Bundle • ΞϓϦ͕ͲΜͲΜෳࡶʹͳͬͯେม → Android Architecture Components
5. Google Play upload ཁ݅ • targetSdkVersion Λ࠷৽ͷ stableʢࠓͩͱ 26ʣʹ͠ͳ͍ ͱ Google Play ʹ apk Λ upload Ͱ͖ͳ͘ͳΔ • 2018೥8݄ ʙ : ৽نͷΞϓϦ • 2018೥11݄ʙ : طଘͷΞϓϦ • https://android-developers.googleblog.com/2017/12/ improving-app-security-and-performance.html
6. Google Play upload ཁ݅ • native libraries ͸ 64-bit version Λఏڙ͠ͳ͍ͱ Google Play ʹ apk Λ upload Ͱ͖ͳ͘ͳΔ • 2019೥8݄ ʙ • https://android-developers.googleblog.com/2017/12/ improving-app-security-and-performance.html
7. IDE : Android Studio • https://developer.android.com/studio/ • IntelliJ IDEA ϕʔε • ࠷৽ͷ stable : Android Studio 3.1
8. 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
9. Channel Setting • [Android Studio] - [Preferences…] - [Appearance & Behavior] - [System Settings] - [Updates]
10. Emulator • ࠓͷΤϛϡϨʔλ͸ΊͪΌ଎͍ʢੲ͸஗͔ͬͨʣ • Play Store ೖΓ΋࡞ΕΔ
11. 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++
12. σβΠϯ
13. 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/
14. Material Theming • ϓϩμΫτͷϒϥϯυΛΑΓΑ͘൓өͤ͞ΔͨΊʹɺମܥ తʹ Mateiral Design ΛΧελϚΠζ͢Δػೳ • https://material.io/design/material-theming/#material- theming • Tools • Material Theme Editor • Gallery
15. 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/
19. Gallery • https://gallery.io/login • σβΠϯͨ͠ը໘ͷετοΫˍڞ༗ • Google Account ͰϩάΠϯ • όʔδϣϯ؅ཧ • ίϝϯτ • Inspect, Material Components ΁ͷϦϯΫ • Material Theme Editor ࿈ܞ
28. Upload from Sketch to Gallery
29. Material Gallery App (Android, iOS) • https://gallery.io/apps • Gallery Project ͷ֤ image Λ σόΠεͰදࣔ • ίϝϯτೖྗ https://www.youtube.com/watch?v=TIB3q68ZHYw
30. ϨΠΞ΢τ • ConstraintLayout • ੍໿ʢConstraintʣΛࢦఆͯ͠ View Λ഑ஔ • ϨΠΞ΢τΤσΟλରԠ • https://developer.android.com/training/constraint-layout/ • CoordinatorLayout • Behavior Λࢦఆͯ͠ View ͷಈ͖Λ੍ޚ
31. ϨΠΞ΢τΤσΟλ • GUI ͰϨΠΞ΢τΛฤू • Android Ͱ͸ XML ͰϨ ΠΞ΢τΛఆٛ • GUI Ͱͷมߋ͸ XML ʹ ద༻͞ΕΔ • https:// developer.android.com/ studio/write/layout-editor
32. Support Library To AndroidX
33. 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
34. AndroidX • ࣗ෼ͷΞϓϦͷιʔείʔυ͚ͩͰͳ͘ɺར༻͍ͯ͠Δϥ ΠϒϥϦ಺΋มߋ͕ඞཁ • [Refactor] - [Refactor to AndroidX…] • Android Studio 3.2 Canary • compileSdkVersion 28 Ҏ্ • 28͸·ͩͳ͍ͷͰ “android-P”
35. Android Jetpack
36. 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 • ࢖͏࢖Θͳ͍͸ࣗ༝ • ࢖͍͍ͨ΋ͷ͚ͩ࢖͑͹Α͍
38. Jetpack : Foundation
39. Foundation • AppCompat : ඞਢ • Android KTX : Kotlin Ͱ։ൃ͢ΔͳΒೖΕΔͱศར • Multidex : ඞཁʹͳΕ͹ඞਢ • Test : ඞਢ
40. Jetpack : UI
41. 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'
42. 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'
43. Fragment • ΄΅ඞਢ • Framework ͷ Fragment ͸ Deprecated • Support Library ͷ Fragment Λ࢖͏ implementation 'com.android.support:support-fragment:28.0.0-alpha1' implementation 'androidx.fragment:fragment:1.0.0-alpha1'
44. 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'
45. 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'
46. Palette • ΞϓϦͷػೳͱͯ͠ඞཁͳΒ • ը૾͔Β৭ΛϐοΫ͢ΔϥΠϒϥϦ implementation 'com.android.support:palette-v7:28.0.0-alpha1' implementation 'androidx.palette:palette:1.0.0-alpha1'
47. Jetpack : Behavior
48. Behavior • Download Manager : μ΢ϯϩʔυػೳ͕ඞཁͳΒ • Media & Playback : Իָ΍ಈը࠶ੜػೳ͕ඞཁͳΒ • Permissions : ϥϯλΠϜύʔϛογϣϯରԠ͸ඞਢ • Noti fi cations : Channel ରԠ͸ඞਢ • Sharing : ڞ༗ػೳ͸ϢʔβϏϦςΟతʹ΄΅ඞਢ
49. Slices • New • https://developer.android.com/guide/slices/ • ࣗ෼ͷΞϓϦͷ৘ใΛଞͷΞϓϦʹදࣔ͢Δ࢓૊Έ • Google Search ͕ 2018 summer ରԠ༧ఆ implementation 'androidx.slice:slice-core:1.0.0-alpha2' implementation 'androidx.slice:slice-builders:1.0.0-alpha2'
50. Jetpack : Architecture
51. Architecture • Data Binding : ࢖͍͚ͨΕ͹ • Lifecycles : LiveData Λ࢖͏ͳΒ • LiveData : ศར • ViewModel : ͍͢͝ศར • Room : ࢖͍͚ͨΕ͹
52. Navigation • New • ભҠؔ܎Λ XML Ͱએ ݴతʹ͔͚Δ • ࣮ࡍͷભҠ࣌ʹ͸݁ہ ίʔυ͕ඞཁ • ศར౓͸·ͩΑ͘Θ͔ Βͳ͍
53. 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'
54. WorkManager • New • API Level 14 Ҏ߱ʹରԠ • ಺෦Ͱ JobScheduler ΍ ʢ͋Ε͹ʣ FirebaseJobDispatcher ΍ AlarmManager Λར༻ • Background Service ͕γεςϜʹΑͬͯऴྃͤ͞ΒΕΔ Α͏ʹͳͬͨͷͰɺWorkManager ʹ੾Γସ͑Δ
55. WorkManager • Ұ౓੾ΓͷඇಉظॲཧɺఆظతͳλεΫɺ྆ํαϙʔτ • ࣮ߦΛอূ • ੍໿ʢωοτϫʔΫʹ઀ଓͨ࣌͠ɺిݯʹͭͳ͕ͬͨ࣌ ͳͲʣΛαϙʔτ • Workʢॲཧʣͷ૊Έ߹Θͤʢฒྻɺ௚ྻʣΛαϙʔτ • Google Play Services ͕࢖͑ͳ͍σόΠε΋OK
56. 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'
57. ϦϦʔε
58. APK • Android ΞϓϦͷ഑෍ܗ ࣜ • [Build] - [Build Bundle(s) / APK(s)] - [Build APK(s)] • [Build] - [Generate Signed Bundle / APK] - [APK]
59. APK analyzer • [Build] - [Analyze APK…] • APK ͷαΠζɺϦιʔεɺ Manifest ͳͲ͕ݟΕΔ
60. Android App Bundle • ղ૾౓΍CPUͳͲσόΠ εͷεϖοΫʹඞཁͳϦ ιʔε͚ͩΠϯετʔϧ ͢Δ࢓૊Έ • [Build] - [Build Bundle(s) / APK(s)] - [Build Bundle(s)] • [Build] - [Generate Signed Bundle / APK] - [Bundle]
62. 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/
63. ·ͱΊ
64. ·ͱΊ • ࠓޙ targetSdkVersion ͸࠷৽ͷ stable ʹ • Material Theme EditorɺGallery Λ࢖ͬͯΈΑ͏ • Kotlin Ͱॻ͍ͯΈΑ͏ • Jetpack ͷػೳΛ೺Ѳ͓ͯ͜͠͏ • ΞϓϦͷαΠζ͕େ͖͍ͳΒ Android App Bundle ͷར༻ Λݕ౼͠Α͏