New in Android Studio

Android Dev Summit 2019 extended Seoul에서 발표한 자료입니다.

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1. Android Dev Summit 2019 extended Seoul New in Android Studio GDE for Android GDG Korea Android Organizer HyeonSeok.Noh
2. উ֞ೞࣁਃ pluuੑפ׮ Android App Developer Google Developers Expert GDG Korea Android Organizer
3. Android Auto Emulator Emulator Multi-Display support Google Maps Emulator Integration Design Tools : Split View & Zoom Control View Binding Support Profilers: Leak detection Filtering JNI support for Kotlin APK Reloader Intellij 2019.2 v3.6 Jetpack Compose Support Motion Editor Build Attribution Desugaring in D8 & R8 Design Tools : Multi-Preview Updated Layout Inspector Kotlin DSL script (KTS) Proguard Editing Kotlin Live Templates Intellij 2019.3 v4.0+
4. Android Dev Summit 2019 extended Seoul Project Structure v3.6 / v4.0
5. build.gradle (~v3.6) New Versions
6. build.gradle (~v3.6) New Versions (Not Visible)
7. build.gradle (v4.0) Solved problem new version
8. build.gradle Variable / Dependency
9. Android Dev Summit 2019 extended Seoul Build Speed v4.0 Canary 3+
11. Build Speed • Build ࠙ࢳद Build Task੄ Critical Pathܳ ӝળਵ۽ ഛੋ • Critical Path : Gradle੉ োࣘ੸ਵ۽ प೯ • ઱ਃ ҃۽о Build दрਸ Ѿ੿ • 4.0.0-alpha03 ੉࢚ ೙ਃ
12. Build Speed Click
13. Build Speed 40.7%
14. Build Speed
15. Build Speed
16. Build Speed
17. Build Speed
18. Build Speed
19. Build Speed
20. Build Speed
21. Build Speed
22. Incremental Build Speed First Build (Total 127.233 s) Second Build (Total 7.129 s) 48.394 s 5.598 s
23. Android Dev Summit 2019 extended Seoul Multi Preview v3.6 / v4.0
24. Multi Preview • ׮নೠ ٣߄੉झ ߂ Configuration җ ҙ۲ػ ۨ੉ইਓਸ زदী ޷ܻ ࠅ ࣻ ੓ח ٣੗ੋ بҳ • Pixel Devices • Locale • Color Blind Mode • IDE ହ੄ য়ܲଃ ࢚ױী੓ח Multi Preview చਸ ௿ܼೞৈ ഝࢿച
25. Split View Code / Split / Design
26. Multi Preview Click
27. Pixel Devices Click
28. Project Locales Click
29. Color Blind Mode Click
30. Android Dev Summit 2019 extended Seoul Desugaring v4.0
31. Android ѐߊद੄ Ҋ޹ • Java? Kotlin? • ੉ ӝמ਷ ࢎਊೡ ࣻ ੓חо? • ݽٚ ೐۽Ӓې߁ীࢲ minSdkVersionী ৊੉ח ޙઁٜ • Shadow / ShadowColor / Java 8 Retrolambda, jack, desugar, Kotlin
32. ~ Android Studio 3.x • Android Studio 3.0 ੉࢚੄ DEX Compiler D8ীࢲ desugaring ೐۽ࣁझܳ ా೧ Java 8 ঱য ӝמ ૑ਗ • lambda expressions • default interface methods • try with resources • Java 8ਸ ॶ ࣻ ੓૑݅, ৈ੹൤ ୭੷ ߡ੹੄ ઁড਷ ઓ੤ Desugaring https://developer.android.com/studio/write/java8-support
33. ~ Android Studio 3.x Desugaring
34. Desugaring Need High API Level
35. Android Studio 4.0+ • ୭ࣗ API Levelਸ ਃҳೞ૑ ঋҊ Java 8 API ࢎਊ оמ • D8਷ ־ۅػ API੄ ҳഅਸ ߹ب Library DEX ౵ੌ۽ ஹ౵ੌ • Library ղࠗী ־ۅػ API ҳഅ੉ ನೣ • Desugaring ೐۽ࣁझח Runtimeद Libraryܳ ࢎਊೞب۾ ௏٘ ੤੘ࢿ Desugaring https://developer.android.com/studio/preview/features#j8-desugar
36. Desugaring // build.gradle android { compileOptions { // ࢜۽਍ Language APIܳ ૑ਗೞӝ ਤೠ Flag coreLibraryDesugaringEnabled true // Java compatibility ࢸ੿ী Java 8 ੸ਊ sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } }
37. Desugaring coreLibraryDesugaringEnabled
38. Default
39. Default
40. Desugaring ਊ۝ૐо
41. Desugaring
42. Supported API • 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) Desugaring https://developer.android.com/studio/preview/features#j8-desugar
43. Android Dev Summit 2019 extended Seoul View Binding v3.6 / v4.0
44. View Binding • View৬ ࢚ഐ੘ਊೞח ௏٘ܳ औѱ ੘ࢿ • ViewBinding ഝࢿചद XML Layout੄ Binding ௿ېझ ࢤࢿ • ؀ࠗ࠙੄ ҃਋, findViewByIdܳ ؀୓ • Android Studio 3.6 Canary 11+ ࠗఠ ഝࢿച <!-- ignore --> <LinearLayout ... tools:viewBindingIgnore="true" > ... </LinearLayout>
45. View Binding // build.gradle android { viewBinding { isEnabled = true } }
46. Example // result_profile.xml <LinearLayout ... > <TextView android:id="@+id/name" /> <ImageView android:cropToPadding="true" /> <Button android:id="@+id/button" android:background="@drawable/rounded_button" /> </LinearLayout>
47. Example // result_profile.xml <LinearLayout ... > <TextView android:id="@+id/name" /> <ImageView android:cropToPadding="true" /> <Button android:id="@+id/button" android:background="@drawable/rounded_button" /> </LinearLayout> public final class ResultProfileBinding implements ViewBinding { @NonNull private final LinearLayout rootView; @NonNull public final Button button; @NonNull public final TextView name; private ResultProfileBinding( @NonNull LinearLayout rootView, @NonNull Button button, @NonNull TextView name) { this.rootView = rootView; this.button = button; this.name = name; } @Override @NonNull public LinearLayout getRoot() { return rootView; } @NonNull public static ResultProfileBinding inflate(...) { ... }
48. View Binding • Binding ௿ېझ੄ ੋझఢझী Viewী ؀ೠ ଵઑо ನೣ • Root • IDо ੓ח View public final class ResultProfileBinding implements ViewBinding { @NonNull private final LinearLayout rootView; @NonNull public final Button button; @NonNull public final TextView name; private ResultProfileBinding( @NonNull LinearLayout rootView, @NonNull Button button, @NonNull TextView name) { this.rootView = rootView; this.button = button; this.name = name; } @Override @NonNull public LinearLayout getRoot() { return rootView; } @NonNull public static ResultProfileBinding inflate(...) { ... }
49. View Binding private lateinit var binding: ResultProfileBinding @Override fun onCreate(savedInstanceState: Bundle) { super.onCreate(savedInstanceState) binding = ResultProfileBinding.inflate(layoutInflater) setContentView(binding.root) } DataBindingҗ زੌೠ ࢎਊߨ
50. findViewById৬੄ ର੉੼ • Null safety : Viewী ؀ೠ ૒੽ ଵઑܳ ࢤࢿ • ੜޅػ View ID۽ ੋೠ NPE ߊࢤ ਋۰ח হ׮ • ੌࠗ࠙ী݅ ੓ח ҃਋ @Nullable • Type safety : XMLীࢲ੄ View Typeҗ ੌ஖ • Layoutҗ ௏٘੄ ࠺ഐജࢿਵ۽ ੋ೧ Compileदী ࠽٘о पಁ
51. • Data Binding਷ <layout> కӒܳ ࢎਊೠ ۨ੉ইਓ݅ ୊ܻ • View Binding਷ ۨ੉ইਓ ߸ࣻ/಴അध ޷૑ਗ • XML੄ ؘ੉ఠ৬ ۨ੉ইਓ ߄ੋ٬ ࠛоמ • ࢎਊ੉ ؊ औҊ ࠽٘ ࣘبী ؏ ৔ೱਸ ષ Data Bindingҗ੄ ର੉੼
52. Android Dev Summit 2019 extended Seoul Jetpack Compose v4.0
53. Before & after Simple app that filters contacts and display name + photo
55. @Composable fun FilteredList(contacts: List<Contact>, filterText: String = "") { val state = +state { filterText } VerticalScroller { Column { TextField(filterText, onValueChange = { state.value = it }) contacts.filter { it.contains(state.value) }.forEach { Row { Image(it.photo) Text(it.name) } } } } } Compose Version
59. Jetpack Compose • pre alpha version • API Not Fixed
60. Android Dev Summit 2019 extended Seoul Embed Emulator on Android Studio NOT RELEASE
61. Embed Emulator
62. Android Dev Summit 2019 extended Seoul Editor v4.0
63. NOT RELEASE
64. Android Dev Summit 2019 extended Seoul Editor ~ Debugging v3.6 / v4.0
65. Debugging ~ Problem • ٣ߡӦ ઺ Break Point ۄੋਸ ૑աஜ • ٣ߡӦ ઺ ୶о௏٘ܳ ؊ ֍Ҋ रয૗ ೧Ѿߨ 1. ನӝೠ׮ 2. ׮द द੘ೠ׮ 3. Apply Changesܳ दبೠ׮
66. Apply Changes & Frame Drop Apply Changes & Frame Drop
67. Android Dev Summit 2019 extended Seoul Layout Inspector v4.0
68. • I/O 19ীࢲ ࣗѐػ ୊਺ ঱ә • ࢜۽਍ Layout Inspector • AS 4.0 Canary 4ীࢲ ز੘ • AS 4.0 Canary 5ীࢲ ޷ز੘ • AS 4.0 Canary 6ীࢲ ز੘ Layout Inspector
69. • Preference - Experimental - Layout Inspector - Enable Live Layout Inspector • Install Plugin • Skia Layout Inspector Enable
70. • Skia Parser Server Requirement
80. • 3D View ഋక۽ ۨ੉ইਓ Ө੉ܳ द п੸ਵ۽ ഛੋ оמ • അ੤ Live updates਷ Slooooow Reviews
81. Motion Editor v4.0
89. Custom
90. Kotlin Live Template v4.0
91. Live Template
92. Emulator
93. Displays Apply Changes Add Display
94. Multiple Display
95. New Old Emulator 29.2.2 Canary
96. Location
97. Location
98. Location
99. Location
100. Location
101. Location
102. Android Dev Summit 2019 extended Seoul Android Gradle plugin 4.0.0 v4.0
103. Feature // build.gradle android { buildFeatures { // Jetpack Compose compose = false buildConfig = true // View Binding / viewBinding.enabled is deprecated viewBinding = false // Data Binding / dataBinding.enabled property is deprecated dataBinding = false aidl = true renderScript = true resValues = true shaders = true } }
104. Android Dev Summit 2019 extended Seoul