What’s new in aNdroid [Google I/O Extended Bangkok 2016]
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The document discusses several new features in Android N including multi-window support that allows split screen and picture-in-picture modes, improved notifications, direct reply functionality, custom quick settings tiles, scoped storage access, and runtime improvements for faster performance and Java 8 language features. It also mentions new developer previews of Instant Apps and the upcoming release date of Android N.
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What’s new in aNdroid [Google I/O Extended Bangkok 2016]
- 1. What’s new in aNdroid
- 3. The Droid has no name
- 4. #GeekAlert
- 5. #teamAndroid
- 9. Multi-Window Lifecycle Only focused Activity is active. The rest are in “Paused” state. [Live Demo]
- 10. Multi-Window Lifecycle Default behavior: Recreate the Activity upon resizing Or handle it yourself: <activity android:configChanges= “screenSize|smallestScreenSize|screenLayout|orientation" ...
- 11. Multi-Window: Split Screen android:resizeableActivity=["true" | "false"] <activity android:name=".MyActivity"> <layout android:defaultHeight="500dp" android:defaultWidth="600dp“ android:minHeight="200dp" android:minWidth="200dp" android:gravity="top|end"/> </activity> Activity.isInMultiWindowMode() Activity.onMultiWindowModeChanged()
- 17. Notifications • New templates • Bundled notifications
- 18. Notifications • New templates • Bundled notifications • Direct Reply [Live Demo]
- 19. Notifications • New templates • Bundled notifications • Direct Reply [Live Demo] • Custom View [Live Demo]
- 20. Notifications • New templates • Bundled notifications • Direct Reply [Live Demo] • Custom View [Live Demo] • Message Style
- 21. Quick Settings • Users: Choose your favorite tiles! • Reorder them, too • Top 5 become your even-quicker-quick-settings • [Live Demo]
- 22. Quick Settings • Developers: Create your own tiles! • Key classes: android.service.quicksettings.TileService onTileAdded(), onTileRemoved() onStartListening(), onStopListening() onClick() getQsTile() -> android.service.quicksettings.Tile setState(), setLabel(), setIcon() then, updateTile()
- 23. Quick Settings <service android:name=".MyTileService" android:label="@string/starting_label" android:icon="@drawable/starting_icon" android:permission="android.permission.BIND_QUICK_SETTINGS_TILE"> <intent-filter> <action android:name="android.service.quicksettings.action.QS_TILE" /> </intent-filter> </service>
- 24. Display Size • User-determined display size • All UI, not just text • .85x – 1.45x • Avoid px • Ensure your app works well on sw320dp
- 26. Multi-Locale • User can select multiple languages • And order them • Also added new languages, variants • [Live Demo]
- 27. Doze Marshmallow
- 28. The ~Extended~ Doze mode N
- 29. Doze in N
- 30. Doze • Marshmallow • Screen off, on battery, stationary • Restricts network, services, defers jobs, syncs, alarms • N • All of the above, plus • Screen off, on battery, not stationary • Restricts network, defers jobs, syncs
- 32. Data Saver
- 35. Data Saver
- 36. Direct Boot
- 37. Direct Boot: App Storage Areas
- 38. Direct Boot: App Storage Areas
- 39. Direct Boot: App Storage Areas
- 40. Direct Boot <receiver android:directBootAware="true" > ... <intent-filter> <action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" /> <action android:name="android.intent.action.BOOT_COMPLETED" /> </intent-filter> </receiver>
- 41. Scoped Directory Access StorageManager sm = (StorageManager)getSystemService(Context.STORAGE_SERVICE); StorageVolume volume = sm.getPrimaryVolume(); Intent intent = volume.createAccessIntent(Environment.DIRECTORY_PICTURES); startActivityForResult(intent, request_code);
- 42. Android for Work
- 43. Runtime • Faster interpreter • JIT • Faster install times • Less space consumed on device • Faster reboots • Apps use partial AOT • Only for hotspots
- 44. New Runtime Libraries • ICU4J • Unicode and globalization support • Subset exposed in android.icu • Avoids conflicts with com.ibm.icu • Deprecated and unstable APIs omitted • Functional Interface • java.util.function • java.util.stream
- 45. Java 8 Language Features • Require the Jack toolchain android { ... defaultConfig { ... jackOptions { enabled true } } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } }
- 46. Lambdas • Implemented using anonymous class • Backward compatible with Gingerbread Vertex[] v = new Vertex[100]; // ... Arrays.sort(v, (Vertex v1, Vertex v2) -> { return v1.length() - v2.length(); }); Arrays.sort(v, (v1, v2) -> v1.length() - v2.length()); Arrays.sort(v, VertexFactory::compareVertices);
- 47. Default & Static Interface Methods • Not backward compatible public interface Renderable { void draw(Canvas c); default bool isHardwardAccelerated() { return false; } static int getMaxTextureSize() { return 2048; } } public interface FrameListener { default void onFrameStarted() { } default void onFrameEnded() { } }
- 48. Stream APIs • Not backward compatible List<String> dictionary = ... dictionary.stream() .filter(s -> s.contains("droid")) .sorted() .limit(10) .forEach(s -> Log.d(TAG, "I love the word " + s));
- 49. Repeating Annotations • Not backward compatible @Schedule(metered=false, frequencyInHours=24) @Schedule(metered=true, frequencyInHours=1) public void fullSync() { ... }
- 50. Java Audio Latency • Previous releases reduced native latency • Lower latency AudioTrack (40-70ms reduction) AudioAttributes attributes = new AudioAttributes.Builder() .setFlags(AudioAttributes.FLAG_LOW_LATENCY) .setContentType(AudioAttributes.CONTENT_TYPE_MUSIC) .build(); • Dynamic resize of AudioTrack buffers • Underruns query
- 51. Renderscript • Single source • Many kernels in a single file • Launch kernels from kernels • Reduction kernels • Access multiple image buffers from video streams • Allocation.getByteBuffer() to reduce copies • Enhanced fp16 support
- 52. OpenGL ES 3.2 • GLES 3.1 + Android extension pack • Except EXT_texture_sRGB_decode • Advanced blending equations • Tesselation shaders • Geometry shaders • ASTC (LDR) • Image atomics • Floating point framebuffers
- 53. Vulkan • Low-level, low-overhead, cross-platform 3D API • Asynchronous/multithreaded command generation • Intermediate shader binary format (SPIR-V) • Offline shaders compilation • Object-based API, no global state • Explicit memory management and synchronization • No error checking
- 54. adb shell • Returns remote process exit status • Pass-through stdin $ cat README | adb shell wc -l • Handles window size and terminal type • Improved command line tools (ls, etc.) • Improved performance (push, pull)
- 55. NDK • Clang 3.8 • GCC 4.9 • Switch to clang, GCC is deprecated! • ARM toolchains default to arm7 arch
- 57. Support Library Future is here
- 58. Support Library • Night Mode • Bottom Sheets • VectorDrawable / AnimatedVectorDrawable • RecyclerView • Design Support Library • Chrome Custom Tabs • etc.
- 59. Other UI Goodies • VectorDrawable performance improvements • Loading, rendering improved 20-90% in N • FloatProperty / IntProperty
- 63. Android Instant Apps • Sneak preview now • Rolling out to developers over the next year • Build inside Android Studio • Just a different build artifact • Demos in the Play Sandbox
- 64. Android N Release Date
- 65. Go Get It!
- 66. Go Get It! Learn: d.android.com/preview Get: d.android.com/preview/setup-sdk.html Report: d.android.com/preview/bug
- 67. Thank you