Android 11 Meetups - What’s new in Android Studio

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GDG Incheon What’s new in Android Studio in 4.0, 4.1, 4.2 HyeonSeok Noh Google Developer Experts for Android

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GDG Incheon Roadmap 2019 2020 v3.5 Project Marble v3.6 v4.0 View Binding Emulator - Google Maps UI Leak Detection Design Tool Updates Motion Editor “Live” Layout Inspector Build Analyzer CPU Profiler update v4.1 v4.2

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GDG Incheon New Logo?!

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4.2 Support for Compose Improved instrumentation testing 4.1 Material Design Project IDE configuration Dagger navigation Emulator directly Database Inspector Custom View Preview 4.0 Java8 library desugaring Build Analyzer CPU Profiler upgrades New Motion Editor Live Layout Inspector Kotlin Android live templates Updated proguard rules android studio

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GDG Incheon Stable Android Studio 4.0 • Java8 library desugaring • Build Analyzer • CPU Profiler upgrades • New Motion Editor • Live Layout Inspector • Kotlin Android live templates • Updated proguard rules

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GDG Incheon Lambda Expressions Default interface method try with resource … Android Studioীࢲ Java8੉ۆ? 2013 2014 2015 2016 2017 2018 2019 2020 Google I/O 2013 Android Studio ߊ಴ 3.0 ߊ಴ Java 8 ૑ਗ द੘ (D8)

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GDG Incheon Android Gradle Plugin 3.0.0+ https://developer.android.com/studio/write/java8-support

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GDG Incheon Android Gradle Plugin 3.0.0+ https://developer.android.com/studio/write/java8-support

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GDG Incheon Sample, Required APIs Using time/stream

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Default

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java.time.LocalDate ࢎਊ઺ Default

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java.time.LocalDate ࢎਊ઺ Default java.util.stream.Stream ࢎਊ઺

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GDG Incheon Lambda Expressions Default interface method try with resource … Android Studio 4.0+ 2013 2014 2015 2016 2017 2018 2019 2020 3.0 ߊ಴ Java 8 ૑ਗ द੘ (D8) 4.0 ߊ಴ Support Java API Desugar (D8) min APIী ৔ೱਸ ߉૑ঋҊ Java ঱য੄ APIܳ ࢎਊоמ Google I/O 2013 Android Studio ߊ಴

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GDG Incheon coreLibraryDesugaringEnabled android { compileOptions { // ࢜۽਍ ঱য APIܳ ૑ਗೞӝ ਤೠ Flag coreLibraryDesugaringEnabled true // Java compatibility ࢸ੿ী Java 8 ੸ਊ sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } } dependencies { coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.0.9' } android { defaultConﬁg { // minSdkVersion 20 ੉ೞੋ ҃਋ ೙ࣻ multiDexEnabled true } }

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GDG Incheon coreLibraryDesugaringEnabled ੸ਊ റ Clear Required API

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Java 8 API ࢎਊਸ ਤೠ ഐജࢿ ӝ߈੄ ੿ࠁо ୶оؽ ੸ਊ ੹ࠁ׮ ਊ۝ ૐо Desugar

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Desugar j$.time.LocalDate ࢎਊ઺ LocalDate.now()

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Desugar j$.time.LocalDate ࢎਊ઺ j$.util.stream.Stream ࢎਊ઺ LocalDate.now() stream()

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GDG Incheon Supported APIs Android Gradle plugin 4.0.0 or higher ● java.util.stream ● java.time ● java.util.function ● java.util.{Map,Collection,Comparator} ● java.util.Optional, java.util.OptionalInt, java.util.OptionalDouble ● java.util.concurrent.atomic (new methods on AtomicInteger, AtomicLong, AtomicReference) ● ConcurrentHashMap (with bug fixes for Android 5.0) https://developer.android.com/studio/write/java8-support#library-desugaring

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GDG Incheon Summary .java .javac .class 3rd party libs D8/R8 App .dex(s) j$ .dex Library desugaring j$.util.stream j$.time … {

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// build.gradle (Default) android { buildFeatures { buildConﬁg = true viewBinding = false dataBinding = false aidl = true renderScript = true resValues = true shaders = true } } New options to enable or disable build features GDG Incheon ● ਗೞח ӝמ ױਤ ഝࢿച оמ ● Module ױਤ build Configuration ࢸ੿ Deprecated android { dataBinding.enabled = false viewBinding.enabled = false }

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Project-wide default settings GDG Incheon // project gradle.properties android.defaults.buildfeatures.viewbinding=true android.defaults.buildfeatures.databinding=true android.defaults.buildfeatures.aidl=true android.defaults.buildfeatures.buildconﬁg=true android.defaults.buildfeatures.renderscript=true android.defaults.buildfeatures.resvalues=true android.defaults.buildfeatures.shaders=true ● Project ੹୓ ӝࠄ ࢸ੿ ୊ܻ

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GDG Incheon on AGP 4.0+ on Android Studio 4.0+ Analyze the project's build performance Build… ing… ing…

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GDG Incheon Build Analyzer • ࠽٘ दрਸ Ѿ੿ೞח ೦ݾٜਸ ࠙ࢳ • Task ѐࢶਵ۽ ੹୓ ࠽٘ दрਸ ઴ੌ ࣻ ੓ח ನੋ౟ https://developer.android.com/studio/build/build-analyzer

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GDG Incheon Build Analyzer ~ Example

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GDG Incheon Build Analyzer Pluginsਵ۽ ߊࢤೞח दр ഛੋ OSS ۄ੉ࣃझ јन਷ ݒ ࠽٘दী јनೡ ೙ਃח হ׮ (੹୓ ઺ 313s / 68.2%)

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GDG Incheon Build Analyzer ~ Tasks • Critical Path Task੄ दрਸ ഛੋ • ࠽٘ दрਸ Ѿ੿ೞח ઱ਃ Taskܳ ഛੋ

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GDG Incheon Build Analyzer ~ Tasks Critical Path Task

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GDG Incheon Build Analyzer ~ Tasks Critical Path Task

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GDG Incheon Build Analyzer ~ Warnings ೦࢚ ز੘ೞח Taskо ੓ח ҃਋, 1. Task ࣻ੿ 2. Library Issue ١۾

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GDG Incheon Advanced Tips ~ Build Scan ./gradlew assembleDebug --scan https://guides.gradle.org/creating-build-scans/

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GDG Incheon Upgrade CPU Profiler Inspect system traces : https://developer.android.com/studio/profile/cpu-profiler#inspect-traces • CPU Profiler UI ѐࢶ • ೠ ߣী ݽٚ झۨ٘ܳ ഛੋ (Redner, App-Main, Others Thread) • ؊਌ ૒ҙ੸ਵ۽ ఐ࢝ • ࠙ࢳ ಁօ ѐࢶ

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GDG Incheon CPU Profiler GDG Incheon

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GDG Incheon CPU Profiler GDG Incheon Timeline Analysis

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GDG Incheon CPU Profiler GDG Incheon

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GDG Incheon Inspect system traces ● ఋ੐ ۄੋীࢲ੄ п झۨ٘ীࢲ ߊࢤೞח ੉߮౟ ● ݽٚ CPU ௏যীࢲ झۨ٘ ഝز ● UI झۨ٘ ߂ ೐ۨ੐ ࣘب ੷ೞܳ ਬߊೞח ߽ݾ അ࢚ ഛੋ GDG Incheon

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GDG Incheon Design tools

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GDG Incheon Design Tools Timeline 2.2 3.0 3.3 3.4 3.5 3.6 4.0 Layout Editor Alpha Layout Editor Navigation Editor Resource Manager Project Marble Constraint Layout Motion Layout Motion Editor

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GDG Incheon Split View update UX • Code/Split/Design View ੹ജ ѐࢶ • ఫझ౟ о੉٘ ୶о

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GDG Incheon Material Icons Filled Outlined Rounded Sharp Two Tone ● 1,000+ icons ● 5 ઙܨ੄ ప݃ File > New > Image Assert / Vector Assert

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GDG Incheon Motion Editor • Required ConstraintLayout 2.0.0-beta3

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Demo

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GDG Incheon Live Layout Inspector • 3D View (Rotate View) • Live Updates • Modify Layer Spacing • Required API Level 29+ on Devices

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Layout Inspector Example

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Issues https://issuetracker.google.com/issues/157714512 GDG Incheon

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GDG Incheon Property value resolution stack • ܻࣗझ ч੉ द੘غח ਤ஖ܳ ઑࢎ • Override غח ܻࣗझ ഛੋ https://developer.android.com/studio/releases#4-0-0-live-layout-inspector

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Property value resolution stack

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GDG Incheon Layout Validation ۨ੉ইਓ੄ ਬബࢿ Ѩࢎ (Multi Devices, Color, Font Size)

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Layout Validation

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Color Blind

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Font Sizes

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Custom Validation ୶о ജ҃ ࢸ੿ਵ۽ Preview ഛੋ

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GDG Incheon Kotlin Android live templates Preferences | Editor | Live Templates

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GDG Incheon Smart editor for code shrinker rules • R8 ௏٘ ୷ࣗ ӏ஗ ౵ੌ(proguard-rules.pro)ਸ ৌ ٸ झ݃౟ ಞ૘ӝ ӝמ • Class, Method, Field ী ؀ೠ ࡅܲ ఐ࢝җ Rename ૑ਗ

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GDG Incheon Smart editor for code shrinker rules

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GDG Incheon Beta 5 Android Studio 4.1 • Material Design Project • IDE configuration • Dagger navigation • Emulator directly • Database Inspector • Custom View Preview

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Material Design Components : Updated themes and styles Android Studio 4.1 ࠗఠ ݠ౭ܻ঴ ٣੗ੋ੉ ӝࠄ ੸ਊ

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Material Design Components

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Material Design Components ~4.0 : colorPrimary 4.1+ : purple_500 ex)

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Material Design Components

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Material Design Components Support Dark Theme

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GDG Incheon Configuration directory changes Window macOS Linux Syntax: %APPDATA%\Google\ Example: C:\Users\YourUserName\AppData\Roaming\Google\AndroidStudioPreview4.1 Syntax: ~/Library/Application Support/Google/ Example: ~/Library/Application Support/Google/AndroidStudioPreview4.1 Syntax: ~/.conﬁg/Google/ Example: ~/.conﬁg/Google/AndroidStudioPreview4.1 IntelliJ IDEA 2020.1 | Default IDE directories

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GDG Location Dagger navigation support GDG Incheon New gutter actions Dagger ҙ۲ ௏٘ܳ औѱ ఐ࢝ ੄ઓࢿ ҕә੗(Provider) ఐ࢝ ੄ઓࢿ ࢎਊ੗(Related) ఐ࢝

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Dagger navigation Example GDG Incheon

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Emulator directly ীޯۨ੉ఠܳ built-in प೯ GDG Incheon

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GDG Incheon Emulator directly

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GDG Incheon Emulator directly ୶о ஶ౟܀ ӝמ • Show Zoom Controls

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GDG Incheon Emulator directly ୶о ஶ౟܀ ӝמ • Show Zoom Controls • Crop Device Frame

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Launch in a tools window AS 4.1 or Higher Preferences | Tools | Emulator Emulator੄ प೯ ਤ஖ܳ ߸҃ ● On : IDEী ࠽౟ੋػ ഋక ● Off : ӝઓ ߑध

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GDG Incheon Database Inspector A live database tool (AS 4.1 Canary 6+) • Query database • Table ؘ੉ఠ ୓௼ ߂ ࣻ੿ • Room/Sqlite ૑ਗ image caption : https://medium.com/androiddevelopers/database-inspector-9e91aa265316 • Live Updates • Run Query Action

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GDG Incheon Navigate Menu ● View - Tools Windows - Database Inspector ● ೞױ Tool ݫ׏ - Database Inspector GDG Incheon

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Database Inspector Required min API Level 26 (Oreo) GDG Incheon

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Database Inspector Inspection App ࢶఖ GDG Incheon

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Database Inspector DB / Table ഛੋ @Query ۽ ੿੄ػ Action प೯ (Database Inspectionदী݅ ഝࢿച) GDG Incheon

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GDG Incheon GDG Location Sqlite statement Example

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GDG Incheon Update table Example GDG Incheon

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GDG Incheon Live updates Example GDG Incheon

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GDG Incheon Custom View Preview

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GDG Incheon android studio 4.0

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GDG Incheon android studio 4.0

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Custom View (code) GDG Incheon android studio 4.1

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GDG Incheon Updated CPU Profiler https://developer.android.com/studio/preview/features#4.1-ui-upgrades • Box selection • Summary tab • Add SurfaceFlinger and VSYNC on Display Data

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CPU Profiler on AS 4.1 GDG Incheon

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GDG Incheon Recurring trace event • ӝࠄ trace (Count, Average, Max, Min …) • о੢ ӟ प೯ ୊ܻ ഛੋ

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GDG Incheon Canary 5 Android Studio 4.2 • Support for Jetpack Compose • Improved instrumentation testing

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GDG Incheon Jetpack Compose

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GDG Incheon Jetpack Compose Android ୭न UI toolkit ● ࢶ঱੸ੋ UI Patterns ● ੸਷ ࣻ੄ ௏٘ ● ૒ҙ੸ ● ࡅܲ ѐߊ җ੿ ● ъ۱ೠ ࢿמ ● Unbundled UI ஹನք౟ ● Kotlin API ࢎਊ ● അ੤ח Developer Preview Jetpack Compose : https://developer.android.com/jetpack/compose GDG Incheon

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GDG Incheon 2020.07 0.1.0-dev15 2019.10 0.1.0-dev01 2010.01 0.1.0-dev04 2019.05

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GDG Incheon New Jetpack Composetooling ● Compose preview ● Interactive preview ● Deploy to device GDG Incheon

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GDG Incheon Compose preview GDG Incheon

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GDG Incheon PreviewParameter

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GDG Incheon ● Tools Attribute੄ Sample Data৬ ਬࢎ ● ױੌ ۨ੉ইਓਸ ࠂࣻ ؘ੉ఠ۽ ഛੋೞҊ र ਷ ҃਋ী ਬਊೣ ● PreviewParameterProvider ● Data ઁҕਸ ҳഅೞח ੋఠಕ੉झ ● PreviewParameter ● Data ࣻन੗ܳ ૑੿ೞח Annotation PreviewParameter GDG Incheon

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GDG Incheon Interactive preview ● Composable ױਤ۽ Preview प೯ ● पઁ৬ زੌೞѱ ز੘

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GDG Incheon Interactive preview

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Deploy Preview

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Deploy Preview

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GDG Incheon Improved instrumentation testing

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GDG Incheon Improved instrumentation testing

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GDG Incheon Improved instrumentation testing

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GDG Incheon Emulators

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Foldables ● Foldable ױ݈੄ Hinge ૑ਗ ● Emulator Extended controls > Virtual sensors ীࢲ ߸҃ ● അ੤ח ࣻزਵ۽ config.ini ী Hinge ੑ۱ਵ۽ ഝࢿച https://androidstudio.googleblog.com/2020/06/emulator-30017-canary.html

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GDG Incheon Hinge angle sensor hw.sensor.hinge = yes hw.sensor.hinge.count = 2 hw.sensor.hinge.ranges = 0-360,0-360 hw.sensor.hinge.defaults = 180,180 hw.sensor.hinge.areas = 0-987-1440-0, 0-1974-1440-0 hw.sensor.posture_list = 1, 2, 3, 4 hw.sensor.hinge_angles_posture_deﬁnitions = 0-30 & 0-30, 30-150 & 30-150, 150-210 & 150-210, 210-360 & 210-360 https://cs.android.com/android/platform/superproject/+/master:prebuilts/ android-emulator/linux-x86_64/lib/hardware-properties.ini;l=535 Add lines to ~/.android/avd/avdName.avd/conﬁg.ini

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GDG Incheon Create AVD ● Open AVD (on 4.1 or Higher) ● Category > Tablet ● Create 13.5” Freeform

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GDG Incheon

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v4.0 Motion Editor “Live” Layout Inspector Layout Validation Custom View Preview CPU Profiler Update R8 Rules Editing Build Analyzer Dynamic Feature Dependency Intellij 2019.3 android studio Database Inspector Dependency Injection tools Faster Apply Changes Gradle Config Caching Android Emulator in IDE Instrumentation Testing Profiler UI Updates Native Memory Profiling New Gradle API MLKit & TFLite Model Import Intellij 2020.1 Wireless ADB Debugging Compose Interactive Preview Compose Animation Visualization ConstraintLayout Visualization Compose Theme Preview Compose Deploy to Device Sample Data API for Compose Compose Editing Support Test Failure Retention Intellij 2020.2 v4.1 v4.2

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GDG Incheon Reference Android Studio Release ● https://developer.android.com/studio/releases#4-0-0 ● https://developer.android.com/studio/preview/features#4.1 ● https://developer.android.com/studio/preview/features#4.2 ● https://android-developers.googleblog.com/2020/05/android-studio-4.html Medium ● https://medium.com/androiddevelopers/layout-inspector-1f8d446d048 ● https://medium.com/androiddevelopers/database-inspector-9e91aa265316 ● https://medium.com/androiddevelopers/whats-new-in-android-studio-system-trace-5841465c5935 ● https://medium.com/androiddevelopers/support-for-newer-java-language-apis-bca79fc8ef65 ● https://medium.com/androiddevelopers/dagger-navigation-support-in-android-studio-49aa5d149ec9 ● https://medium.com/androiddevelopers/android-at-large-how-to-bring-optimized-experiences-to-the-big-screen- a50a6784e59d

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GDG Incheon Thanks!! http://pluu.github.io @pluulove