GoogleIo 19 - What's new in Android.md

What's new in Android

BubbleApi (0:04)

• api 29
• What's New in the Android Os User Interface thu @ 9: 30

Dark theme (1:35)

• in Q()
• MODE_NIGHT_AUTO_TIME deprecated
• OptionA - use Theme
  • Theme.AppCompat.DayNight
  • Theme.DeviceDefault.DayNight
  • ThemeOverlay.DeviceDefault.Accent.DayNight
• OptionB - other
  • android:forceDarkAllowed="true" // in AndroidManifest.xml
  • view.setForceDarkAllowed(false) // exclude things that shouldn't be forced
• OptionC - DIY
• Dark Theme and Gestures in Android Q Thu@9:30

Sharing (3:50)

• Support image& text
• Doesn't need to start your app
• copy to clipboard up top
• fast

Interruptions (5:00)

• separate - gentle | priority

Notification actions(7:45)

• automatically generated reply
• text based on message content

Gesture navigation(8:14)

• Notice a UI paradigm in the wild
• Make it safer, more reusable
• Add it to the framework
• edget to dege, gesture areas, exclusion Rects
• Dark Theme and Gestures in Android Q Thu@9:30

Webview(11:20)

• Detect hung renderer

Accessibility(11:36)

• Demystifying Android Accessibility Development Wed@9:30

Text(12:00)

• hyphenation

Magnifier(13:35)

• Configurable with Magnifier.Builder

Private Api(13:55)

Android Runtime(15:36)

• App Profiles in the Cloud ~15% faster startup
• Startup improvements
• Generational Garbage Collector
• Understanding Android Runtime (ART) for Faster Apps Wed@11:30

Kotlin(17:10)

• New Apis in Q have nullability annotations
• Nullability enforced as errors instead of warnings with Q.
• Incremental annotation processing with kapt in 1.3.30
• What's New in Kotlin on Android, 2 Years In Wed@12:30

Security(18:20)

• TLS 1.3, enabled by default
• Biometric dialog improvements

New Hotness(18:55)

• PowerManager

Neural Network Api(19:19)

• Machine Learning
• What's New Android Machine Learning

Preferences(19:35)

• android.preference deprecated
• androidx.preference
• YouTube (ADS'18): Preferential Practices for Preferences

Architecture Components(20:16)

• WorkManager 1.0.1 & 2.0.1(AndroidX)
  • Youtube (ADS'18) Easier Background Processing with WorkManager
• Navigation 1.0 & 2.0 (AndroidX)
  • Jetpack Navigation Wed@1:30
• SavedState for ViewModel 1.0
• Benchmarking
  • Improving App Performance with Benchmarking Thu@1:30
• Lifecycles, Livedata, Room: Now with coroutines!
  • What's New in Architecture Components Wed@10:30

CameraX(21:06)

• Easy to use camera API
• Backwards compatible to Android L
• Consistent behavior across Android devices
• Extensions add-on for device-specific features
• Understand the CameraX Camera-supprot Library Wed@5:30

Jetpack Compose(21:55)

• Next-generation UI toolkit
  • Unbundled
  • Reactive
  • Kotlin
• check out : d.android.com/jetpackcompose
• Declarative UI Patterns Wed@3:30

ViewPager2 (26:40)

• Like ViewPAger, but better
  • Easy migration from ViewPager
  • Based on RecyclerView
  • RTL support
  • Allows vertical paging
  • Improved dataset change notifications

ViewBindings(27:32)

• No more findViewById()
  • Bindings generated form XML layout files
  • Null-safe, type0safe fields
• what's New in Architecture Components Wed@1:30

Blend Modes(28:50)

• android.graphics.BlendMode
• HARD_LIGHT
• SOFT_LIGHT
• etc..

RenderNode(29:18)

• Efficient rendering
• Can be hierarchical
• Cast shadows without a View

HardwareRenderer(30:30)

• Used by the UI toolkit internally
• Renders a scene of RenderNodes to a Surface.
• Lets you control the light source for Material shadows.
• Bitmap can now wrap a HardwareBuffer
• Frequent bitmap updates without texture uploads.
• Use a Surface as a Bitmap in your UI

SurfaceControl(33:05)

• Android Graphics Office Hours Wed@4:45

Vulkan(33:11)

• Vulkan 1.1 is now required for all new 64bit devices.
• Android Graphics Office Hours Wed@4:45

ANGLE(33:24)

• OpenGL ES over Vulkan
• Increase consistency across devices.
• Regular updates through the ANGLE APK.
• Opt-in in Developers Options.
• Android Graphics Office Hours Wed@4:45

Wide Color Gamut(33:41)

• Introduced in O, using 16bit color depth
• Now uses 8 bit color depth instead
  • Higher performance
  • Decreased memory usage
• New @ColorLong APIs.

Audio Playback Capture(34:17)

• Capture audio from other apps
• Use AudioPlaybackCaptureConfiguration.

External Storage(34:54)

• Restricting Access to Other Apps' Stuff
• targetSdk = P : No change
• targetSdk = Q
  • SandBoxed by default
  • Media files: Storage permission + MediaStore
  • Photo metadata: Storage + MediaLocation permissions
  • All files: Manifest flag
• Understanding Shared-Storage Permission Changes

Location(35:38)

• Location request prompts user
  • forground or always
• New permission for background location access
• NewPrivacy Features Related to Location Wed@9:30

Background Activity starts(35:57)

• To start activity, must
  • Be in foreground, or handle a...
    • Pending intent form foreground app
    • pending intent from system (e.g ., tapped notification)
    • Broadcast from system
  • Consider using notifications instead
• Overview of Privacy Changes in Android Q Wed@8:30

Camera(36:30)

• requires Camera permission for device-specific data
  • ANDROID_LENS_DISTORTION
  • ANDROID_LENS_INFO_MINIMUM_FOCUS_DISTANCE
• Overview of Privacy Changes in Android Q Wed@8:30

Connectivity(36:47)

• Apps cannot enable/disable Wifi
• Wifi network configuration APIs noop
• ACCESS_FINE_LOCATION needed for various network APIs
• Overview of Privacy Changes in Android Q Wed@8:30

Settings Panel(37:04)

• Settings UI directly wihin app