What´s new in Android 11

Talk in the GDG Managua talking about the news in Android 11 in terms of UI, SDK and Android Jetpack. Video available at https://www.youtube.com/watch?v=Qc7DcS9suyE

Transcript

1. GDG Managua Facundo Rodríguez Arceri @facundomr
2. GDG Managua So… what is new? What’s new about What’s New in Android? Android 11 Tools Libraries
3. GDG Managua UI
4. GDG Managua Window Insets • More information about the multiple types of content being displayed APP Status Navigation IME
5. GDG Managua WindowInsets // get WindowInsets object from listener view.setOnApplyWindowInsetsListener { view, insets -> }
6. GDG Managua WindowInsets // get WindowInsets object from listener view.setOnApplyWindowInsetsListener { view, insets -> // See if the IME is visible val imeVisible = insets.isVisible((WindowInsets.Type.ime())) }
7. GDG Managua WindowInsets // get WindowInsets object from listener view.setOnApplyWindowInsetsListener { view, insets -> // See if the IME is visible val imeVisible = insets.isVisible((WindowInsets.Type.ime())) if (imeVisible) { val imeInsets = insets.getInsets(WindowInsets.Type.ime()) // ... } }
8. GDG Managua WindowInsets.Type
9. GDG Managua IME Animations • Synchronize keyboard animations with app content changes ◦ Listen for changes ▪ AND/OR ◦ Drive keyboard animation directly
10. GDG Managua IME Animations
11. GDG Managua editText.setWindowInsetsAnimationCallback(animCallback) val animCallback = object : WindowInsetsAnimation.Callback(DISPATCH_MODE_STOP) { override fun onProgress(p0: WindowInsets, p1: MutableList<WindowInsetsAnimation> ): WindowInsets { ... } // Optional overrides override fun onPrepare(animation: WindowInsetsAnimation) { ... } override fun onEnd(animation: WindowInsetsAnimation) { ... } override fun onStart(animation: WindowInsetsAnimation, bounds: WindowInsetsAnimation.Bounds ): WindowInsetsAnimation.Bounds { ... } } IME Animations Listening for keyboard changes
12. GDG Managua IME Animations editText.windowInsetsController?. controlWindowInsetsAnimation( WindowInsets.Type.ime(), /* animate the keyboard */ -1, /* infinite duration */ linearInterpolator, /* linear motion */ cancellationSignal, /* allows cancellation */ animationControlListener /* ready/cancelled/finished */ ) Animating the keyboard directly
13. GDG Managua Conversations
14. GDG Managua Conversations // Create and post shortcut val person = Person.Builder().build()
15. GDG Managua Conversations // Create and post shortcut val person = Person.Builder().build() val shortcutInfo = ShortcutInfoCompat.Builder(this, "sampleShortcut"). setPerson(person). setLongLived(true). // ... build()
16. GDG Managua Conversations // Create and post shortcut val person = Person.Builder().build() val shortcutInfo = ShortcutInfoCompat.Builder(this, "sampleShortcut"). setPerson(person). setLongLived(true). // ... build() ShortcutManagerCompat.pushDynamicShortcut(shortcutInfo)
17. GDG Managua Conversations // Create and post shortcut val person = Person.Builder().build() val shortcutInfo = ShortcutInfoCompat.Builder(this, "sampleShortcut"). setPerson(person). setLongLived(true). // ... build() ShortcutManagerCompat.pushDynamicShortcut(shortcutInfo) // Create notification with shortcut val style = NotificationCompat.MessagingStyle(person). addMessage(...). // ...
18. GDG Managua Conversations // Create and post shortcut val person = Person.Builder().build() val shortcutInfo = ShortcutInfoCompat.Builder(this, "sampleShortcut"). setPerson(person). setLongLived(true). // ... build() ShortcutManagerCompat.pushDynamicShortcut(shortcutInfo) // Create notification with shortcut val style = NotificationCompat.MessagingStyle(person). addMessage(...). // ... NotificationCompat.Builder(this, "foo"). setShortcutId(shortcutInfo.id). // ... build()
19. GDG Managua Bubbles
20. GDG Managua Bubbles • Notifications that can also show as bubbles • Android 10: Developer option ◦ Android 11: They’re here! • Better than System Alert Window! • Created with Notification API ◦ with more metadata ◦ and dedicated activity
21. GDG Managua Bubbles: Manifest Manifest: <activity android:name=".bubbles.BubbleActivity" android:theme="@style/AppTheme.NoActionBar" android:label="@string/title_activity_bubble" android:resizeableActivity="true" />
22. GDG Managua Bubbles: Code // Create Intent to launch val intent = Intent(context, BubbleActivity::class.java) val bubbleIntent = PendingIntent.getActivity(context, 0, intent,...)
23. GDG Managua Bubbles: Code // Create Intent to launch val intent = Intent(context, BubbleActivity::class.java) val bubbleIntent = PendingIntent.getActivity(context, 0, intent,...) // Create metadata val shortcutInfo = ... /* probably already using for notifications */ val bubbleMetadata = Notification.BubbleMetadata.Builder(shortcutInfo.id)
24. GDG Managua Bubbles: Code // Create Intent to launch val intent = Intent(context, BubbleActivity::class.java) val bubbleIntent = PendingIntent.getActivity(context, 0, intent,...) // Create metadata val shortcutInfo = ... /* probably already using for notifications */ val bubbleMetadata = Notification.BubbleMetadata.Builder(shortcutInfo.id) // Create Notification with metadata val builder: Notification.Builder = Notification.Builder(context, CHANNEL_ID) // ... .setBubbleMetadata(bubbleMetadata) .setCategory(...) .setShortcutId(...)
25. GDG Managua Privacy Android 11 enables state of the art privacy and security features, protecting users and their data from access by malicious apps, while simultaneously making access of that data more transparent to the user.
26. GDG Managua Data Access Auditing • Listen for when user-permission-required data is accessed • Great for large apps or use of external libraries
27. GDG Managua • Callbacks invoked when user-permission-required data is accessed Data Access Auditing
28. GDG Managua Data Access Auditing val appOpsCallback = object : AppOpsManager.OnOpNotedCallback() { override fun onNoted(syncNotedAppOp: SyncNotedAppOp) { ... } override fun onSelfNoted(syncNotedAppOp: SyncNotedAppOp) { ... } override fun onAsyncNoted(asyncNotedAppOp: AsyncNotedAppOp) { ... } }
29. GDG Managua Data Access Auditing val appOpsCallback = object : AppOpsManager.OnOpNotedCallback() { override fun onNoted(syncNotedAppOp: SyncNotedAppOp) { ... } override fun onSelfNoted(syncNotedAppOp: SyncNotedAppOp) { ... } override fun onAsyncNoted(asyncNotedAppOp: AsyncNotedAppOp) { ... } } val appOpsManager = getSystemService(AppOpsManager::class.java) as AppOpsManager appOpsManager.setOnOpNotedCallback(mainExecutor, appOpsCallback)
30. GDG Managua One-Time Permissions
31. GDG Managua • More restrictive in Android 11 • First, request foreground permission • Then request background permission ◦ Takes user to Settings Background Location
32. GDG Managua Background Location
33. GDG Managua • Android 10 required manifest attribute for Location • Android 11 adds ◦ Camera ◦ Microphone Foreground Services
34. GDG Managua Foreground Service Type <manifest> ... <service ... android:foregroundServiceType="camera|microphone" /> ... </manifest>
35. GDG Managua But Wait, There’s More! • Package visibility restrictions • Scoped storage • Device controls • Auto-reset permissions
36. GDG Managua Developer Goodies
37. GDG Managua Wi-Fi Debugging Because there are never enough USB ports
38. GDG Managua Wi-Fi Debugging Because there are never enough USB ports
39. GDG Managua Nullability Annotations • @RecentlyNullable, @RecentlyNonNull ◦ Warnings • @Nullable, @NonNull ◦ Errors
40. GDG Managua Crash Reasons Reporting • API to query why your app crashed ◦ Upload reports
41. GDG Managua Crash Reasons Querying // Returns List of ApplicationExitInfo val reasonsList = activityManager.getHistoricalProcessExitReasons( packageName, pid /* 0 for all matches */, max /* 0 for all */)
42. GDG Managua Crash Reasons Querying // Returns List of ApplicationExitInfo val reasonsList = activityManager.getHistoricalProcessExitReasons( packageName, pid /* 0 for all matches */, max /* 0 for all */) for (info in reasonsList) { // Log/store/upload info.reason // REASON_LOW_MEMORY, REASON_CRASH, REASON_ANR, etc. }
43. GDG Managua ADB Incremental • Faster installs via command-line • For huge APKs (think: games) • Up to 10x faster
44. GDG Managua ADB Incremental • Faster installs via command-line • For huge APKs (think: games) • Up to 10x faster adb adb incremental playable Avg time (in seconds) 68.8 s 0.29 s Unity Megacity demo 3.5 GB, Pixel 4, USB 3.0 adb incremental fully installed 7.6 s Source: Google data
45. GDG Managua ADB Incremental // First: sign APK, create APK Signature Scheme v4 file // Then, run ADB incremental $ adb install --incremental
46. GDG Managua Behavior Changes • Most changes limited to targetSdk R • Test changes with behavior toggles ◦ Command-line ◦ New Developer Options panel
47. GDG Managua Toggling Behavior Changes // adb shell am compat (enable|disable) (CHANGE_ID|CHANGE_NAME) \ PACKAGE_NAME $ adb shell am compat disable DEFAULT_SCOPED_STORAGE \ com.android.samples.android11playground
48. GDG Managua Graphics & Media
49. GDG Managua NDK Image Decoders • All decoders available from native code ◦ JPEG, GIF, PNG, WebP, … • No more ◦ JNI up-calling ◦ Bundling decoder libraries ◦ Bulking APK size
50. GDG Managua Animated HEIF • Load animated images from HEIF files • Loaded as AnimatedImageDrawable ◦ Like animated GIFs ◦ But smaller!
51. GDG Managua Animated HEIFs val file = File("someHeifFile") val source = ImageDecoder.createSource(file)
52. GDG Managua Animated HEIFs val file = File(“someHeifFile”) val source = ImageDecoder.createSource(file) // Perform off main thread val drawable = ImageDecoder.decodeDrawable(source); if (drawable is AnimatedImageDrawable) { drawable.start() }
53. GDG Managua NDK: OpenSL ES @Deprecated • Oboe for the win! • Unbundled C++ library ◦ High-performance audio ◦ Works back to API 16 ◦ Open source github.com/google/oboe
54. GDG Managua Variable refresh rate • For apps with their own rendering loop ◦ e.g., games • 60 frames per second used to be a given ◦ Now some devices support 90, 120 Hz ◦ Enables more flexible backoff rates • Surface.setFrameRate() 120 fps 60
55. GDG Managua But Wait, There’s More!
56. GDG Managua 5G • APIs to optimize 5G experience ◦ Metered network state ◦ Bandwidth estimates
57. GDG Managua 5G val manager = getSystemService(ConnectivityManager::class.java) manager.registerDefaultNetworkCallback(object: ConnectivityManager.NetworkCallback() { override fun onCapabilitiesChanged(network: Network, capabilities: NetworkCapabilities) { if (capabilities.hasCapability( NetworkCapabilities.NET_CAPABILITY_NOT_METERED)) {...} ... if (capabilities.linkDownstreamBandwidthKbps > FAST_NETWORK) {...} } })
58. GDG Managua Biometric authenticator strength
59. GDG Managua Biometric authenticator strength val manager: BiometricManager? = getSystemService(BiometricManager::class.java) val strength = BiometricManager.Authenticators.BIOMETRIC_STRONG if (manager?.canAuthenticate(strength) != BiometricManager.BIOMETRIC_SUCCESS) { // Takes user to enroll biometrics security. val intent = Intent(Settings.ACTION_BIOMETRIC_ENROLL) intent.putExtra(Settings.EXTRA_BIOMETRIC_AUTHENTICATORS_ALLOWED, strength) startActivity(intent) } else { // Authenticate user! }
60. GDG Managua BiometricManager.Authenticators
61. GDG Managua Autofill/Keyboard Integration • Autofill content in keyboards, not just drop-down ◦ Keyboards ◦ Password apps • Secure - keyboards get UI to present data, not data itself
62. GDG Managua Autofill
63. GDG Managua Non-Platform
64. GDG Managua Jetpack • 70+ libraries, releases every two weeks • New/Recent ◦ Hilt: Dependency injection, built on Dagger ◦ Paging 3.0: All-Kotlin, with coroutines ◦ CameraX Beta ◦ … and more!
65. GDG Managua Jetpack Compose • New UI Toolkit for Android • Reactive, Kotlin-based • Pre-alpha, developed in the open
66. GDG Managua Jetpack Compose
67. GDG Managua Android Studio • 4.0: Stable ◦ Motion Editor ◦ LayoutInspector • 4.1: Beta ◦ Database Inspector (Room, SQLite) • 4.2: Canary ◦ Wireless debugging with Android 11 ◦ Jetpack Compose development
68. GDG Managua Google Play • New Play console: complete redesign ◦ clearer, easier to use ◦ policy status section ◦ acquisition reports ◦ team management • Now in Beta ◦ play.google.com/console
69. GDG Managua For More Information Launch videos goo.gle/android11
70. GDG Managua For More Information Launch videos 11 Weeks of Android goo.gle/android11 d.android.com/11weeksofandroid
71. GDG Managua For More Information Launch videos 11 Weeks of Android Android 11 Meetups goo.gle/android11 d.android.com/11weeksofandroid d.android.com/android11/meetups
72. GDG Managua For More Information Launch videos 11 Weeks of Android Android 11 Meetups Now in Android goo.gle/android11 d.android.com/11weeksofandroid d.android.com/android11/meetups articles: medium.com/androiddevelopers/tagged/now-in-android videos: youtube.com/androiddevelopers podcast: nowinandroid.googledevelopers.libsynpro.com
73. Thank you!