What's New in Android 11 - GDG Lahore

🔊 Wajahat Karim talks about the new features and APIs in Android 11 at Android 11 Meetups organized by GDG Lahore.

👉 Full video: https://youtu.be/mE-B2h5l2ac

Transcript

1. GDG Lahore
   What’s new in Android
   Wajahat Karim
   Google Developer Expert in Android
   wajahatkarim.com
   

   View Slide

2. GDG Lahore
   This is Wajahat Karim!
   - Google Developer Expert in Android
   - Over 8 years experience in Android
   - Open Source Contributor
   - Technical Blogs & Books Writer
   - Love to share my knowledge with others
   Follow me on Twitter @WajahatKarim
   Visit my website: wajahatkarim.com
   

   View Slide

3. GDG Lahore
   

   View Slide

4. GDG Lahore
   So… what is new?
   What’s new about What’s New in Android?
   People
   Controls
   Privacy
   

   View Slide

5. GDG Lahore
   People
   

   View Slide

6. GDG Lahore
   Credits: OneSignal
   Conversations
   ● Dedicated section at top of the notifications
   ○ Only for chat / messaging apps
   

   View Slide

7. GDG Lahore
   Credits: InfoTechNews
   Chat Bubbles
   ● Help users to keep conversations in view and
   accessible while multitasking
   ○ Only for chat / messaging apps
   ○ Created with Notifications API
   ○ Better than SYSTEM_ALERT_WINDOW
   permission
   https://wajahatkarim.com/2020/04/what-happened-to-chat-bubbles/
   

   View Slide

8. GDG Lahore
   Credits: Android Central
   Autofill Keyboard
   ● Lets Autofill apps and Input Method Editors
   (IMEs) like Keyboards securely offer
   context-specific entities and strings directly
   in an IME’s suggestion strip.
   

   View Slide

9. GDG Lahore
   Controls
   

   View Slide

10. GDG Lahore
    Credits: CNET
    Quick Controls
    ● Triggers on long press Power button
    ○ Power off options
    ○ Google Play cards
    ○ Smart Home device controls
    

    View Slide

11. GDG Lahore
    Credits: 9to5google
    Media Resumptions
    ● Control panel-esque setup embedded directly
    at the top of your screen
    ○ Used to be clustered between notifications
    ○ Only accessible through Developer
    Options for now
    

    View Slide

12. GDG Lahore
    Credits: MashTips
    Share Menu
    ● Pin Apps in Share Menu
    ○ Allows faster sharing
    

    View Slide

13. GDG Lahore
    ● Scheduling dark mode
    ○ All time dark or light
    ○ Switch between dark / light at specific
    times
    Credits: MashTips
    Improved Dark Mode
    

    View Slide

14. GDG Lahore
    ● Picture-in-Picture displays can be resized
    ○ Such as Google Maps navigation
    ○ YouTube videos
    ○ Video Calls
    Credits: 9to5google
    Resizable
    Picture-in-Picture
    

    View Slide

15. GDG Lahore
    Credits: 9to5google
    Screen Recorder
    ● Native screen recording
    ○ Quick settings tile
    ○ No more third parties
    

    View Slide

16. GDG Lahore
    Privacy
    

    View Slide

17. GDG Lahore
    Credits: VentureBeat
    Permissions
    ● One-time permissions
    ○ lets users give an app access to the device
    microphone, camera, or location, just that
    one time
    ● Permissions auto-reset
    ○ Android 11 will “auto-reset” all of the
    runtime permissions of the app if its not
    used for a while (e.g. 3 months)
    ● Background location
    ○ Developers will need to get approval to
    access background location in their app to
    prevent misuse
    

    View Slide

18. GDG Lahore
    Developers
    

    View Slide

19. GDG Lahore
    Window Insets
    ● More information about the
    multiple types of content being
    displayed
    ○ Status, navigation, IME, ...
    

    View Slide

20. GDG Lahore
    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())
    // ...
    }
    }
    

    View Slide

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

    View Slide

22. GDG Lahore
    IME Animations
    

    View Slide

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

    View Slide

24. GDG Lahore
    ● Callbacks invoked when
    user-permission-required data is
    accessed
    Data Access Auditing
    

    View Slide

25. GDG Lahore
    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)
    

    View Slide

26. GDG Lahore
    One-Time Permissions
    

    View Slide

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

    View Slide

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

    View Slide

29. GDG Lahore
    Foreground Service Type
    
    ...
    
    ...
    
    

    View Slide

30. GDG Lahore
    Developer Goodies
    

    View Slide

31. GDG Lahore
    Wi-Fi Debugging
    Because there are never enough USB ports
    

    View Slide

32. GDG Lahore
    Wi-Fi Debugging
    Because there are never enough USB ports
    

    View Slide

33. GDG Lahore
    Crash Reasons
    Reporting
    ● API to query why your app crashed
    ○ Upload reports
    

    View Slide

34. GDG Lahore
    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.
    }
    

    View Slide

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

    View Slide

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

    View Slide

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

    View Slide

38. GDG Lahore
    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
    

    View Slide

39. GDG Lahore
    But Wait, There’s More!
    https://android-developers.googleblog.com/2020/06/unwrapping-android-11-beta-plus-more.html
    #11WeeksOfAndroid
    

    View Slide

40. Thank you!
    @WajahatKarim
    wajahatkarim.com youtube.com/c/wajahatkarim3
    

    View Slide