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GDG Managua Facundo Rodríguez Arceri @facundomr

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GDG Managua So… what is new? What’s new about What’s New in Android? Android 11 Tools Libraries

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GDG Managua UI

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GDG Managua Window Insets ● More information about the multiple types of content being displayed APP Status Navigation IME

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GDG Managua WindowInsets // get WindowInsets object from listener view.setOnApplyWindowInsetsListener { view, insets -> }

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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())) }

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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()) // ... } }

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GDG Managua WindowInsets.Type

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GDG Managua IME Animations ● Synchronize keyboard animations with app content changes ○ Listen for changes ■ AND/OR ○ Drive keyboard animation directly

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GDG Managua IME Animations

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GDG Managua editText.setWindowInsetsAnimationCallback(animCallback) val animCallback = object : WindowInsetsAnimation.Callback(DISPATCH_MODE_STOP) { override fun onProgress(p0: WindowInsets, p1: MutableList ): 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

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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

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GDG Managua Conversations

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GDG Managua Conversations // Create and post shortcut val person = Person.Builder().build()

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GDG Managua Conversations // Create and post shortcut val person = Person.Builder().build() val shortcutInfo = ShortcutInfoCompat.Builder(this, "sampleShortcut"). setPerson(person). setLongLived(true). // ... build()

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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)

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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(...). // ...

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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()

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GDG Managua Bubbles

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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

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GDG Managua Bubbles: Manifest Manifest:

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GDG Managua Bubbles: Code // Create Intent to launch val intent = Intent(context, BubbleActivity::class.java) val bubbleIntent = PendingIntent.getActivity(context, 0, intent,...)

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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)

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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(...)

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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.

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GDG Managua Data Access Auditing • Listen for when user-permission-required data is accessed • Great for large apps or use of external libraries

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GDG Managua ● Callbacks invoked when user-permission-required data is accessed Data Access Auditing

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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) { ... } }

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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)

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GDG Managua One-Time Permissions

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GDG Managua ● More restrictive in Android 11 ● First, request foreground permission ● Then request background permission ○ Takes user to Settings Background Location

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GDG Managua Background Location

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GDG Managua • Android 10 required manifest attribute for Location • Android 11 adds ○ Camera ○ Microphone Foreground Services

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GDG Managua Foreground Service Type ... ...

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GDG Managua But Wait, There’s More! ● Package visibility restrictions ● Scoped storage ● Device controls ● Auto-reset permissions

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GDG Managua Developer Goodies

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GDG Managua Wi-Fi Debugging Because there are never enough USB ports

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GDG Managua Wi-Fi Debugging Because there are never enough USB ports

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GDG Managua Nullability Annotations ● @RecentlyNullable, @RecentlyNonNull ○ Warnings ● @Nullable, @NonNull ○ Errors

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GDG Managua Crash Reasons Reporting ● API to query why your app crashed ○ Upload reports

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GDG Managua Crash Reasons Querying // Returns List of ApplicationExitInfo val reasonsList = activityManager.getHistoricalProcessExitReasons( packageName, pid /* 0 for all matches */, max /* 0 for all */)

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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. }

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GDG Managua ADB Incremental ● Faster installs via command-line ● For huge APKs (think: games) ● Up to 10x faster

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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

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GDG Managua ADB Incremental // First: sign APK, create APK Signature Scheme v4 file // Then, run ADB incremental $ adb install --incremental

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GDG Managua Behavior Changes ● Most changes limited to targetSdk R ● Test changes with behavior toggles ○ Command-line ○ New Developer Options panel

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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

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GDG Managua Graphics & Media

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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

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GDG Managua Animated HEIF ● Load animated images from HEIF files ● Loaded as AnimatedImageDrawable ○ Like animated GIFs ○ But smaller!

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GDG Managua Animated HEIFs val file = File("someHeifFile") val source = ImageDecoder.createSource(file)

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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() }

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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

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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

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GDG Managua But Wait, There’s More!

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GDG Managua 5G ● APIs to optimize 5G experience ○ Metered network state ○ Bandwidth estimates

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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) {...} } })

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GDG Managua Biometric authenticator strength

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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! }

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GDG Managua BiometricManager.Authenticators

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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

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GDG Managua Autofill

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GDG Managua Non-Platform

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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!

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GDG Managua Jetpack Compose ● New UI Toolkit for Android ● Reactive, Kotlin-based ● Pre-alpha, developed in the open

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GDG Managua Jetpack Compose

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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

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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

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GDG Managua For More Information Launch videos goo.gle/android11

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GDG Managua For More Information Launch videos 11 Weeks of Android goo.gle/android11 d.android.com/11weeksofandroid

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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

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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

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Thank you!