นักพัฒนาแอนดรอยด์จะต้องเตรียมตัวอย่างไรบ้าง เมื่อ Google Play บังคับให้นักพัฒนาอัปเดต Target SDK Version ของแอปตัวเองให้เป็นเวอร์ชัน 29 หรือสูงกว่า

1. Get Ready for Target SDK Version
29 & 30

2. Somkiat
Khitwongwattana
Android GDE
Software Engineer, LINE MAN Wongnai

3. Google Play's Target API Level Requirement

4. Target SDK Version
29

5. Full-screen Intent Notification
Must request the USE_FULL_SCREEN_INTENT
permission in app's manifest file.
<manifest>
...
<uses-permission android:name=
"android.permission.USE_FULL_SCREEN_INTENT" />
...
</manifest>
Note: Normal Permission, API 29

6. Background Location Access
Must request the ACCESS_BACKGROUND_LOCATION
permission at runtime and in app's manifest file.
// Android Manifest
"android.permission.ACCESS_BACKGROUND_LOCATION"
// Runtime
Manifest.permission.ACCESS_BACKGROUND_LOCATION
Note: Dangerous Permission, API 29

7. https://youtu.be/xTVeFJZQ28c

8. Camera's Characteristics in Camera v2 API
Must request the CAMERA permission at
runtime and in app's manifest file.
CameraManager.getCameraCharacteristics(...)
Note: Dangerous Permission

9. • LENS_POSE_ROTATION
• LENS_POSE_TRANSLATION
• LENS_INTRINSIC_CALIBRATION
• LENS_RADIAL_DISTORTION
• LENS_POSE_REFERENCE
• LENS_DISTORTION
• LENS_INFO_HYPERFOCAL_DISTANCE
• LENS_INFO_MINIMUM_FOCUS_DISTANCE

10. • SENSOR_REFERENCE_ILLUMINANT1
• SENSOR_REFERENCE_ILLUMINANT2
• SENSOR_CALIBRATION_TRANSFORM1
• SENSOR_CALIBRATION_TRANSFORM2
• SENSOR_COLOR_TRANSFORM1
• SENSOR_COLOR_TRANSFORM2
• SENSOR_FORWARD_MATRIX1
• SENSOR_FORWARD_MATRIX2

11. Physical Activity Recognition
Must request the ACTIVITY_RECOGNITION
permission at runtime and in app's manifest file.
// Android Manifest
"android.permission.ACTIVITY_RECOGNITION"
// Runtime
Manifest.permission.ACTIVITY_RECOGNITION
Note: Dangerous Permission, API 29

12. Physical Activity Recognition
• Sensor API
• Step Counter
• Step Detector
• Activity Recognition API
• Google Fit API

13. Telephony, Bluetooth and Wi-Fi APIs
Location access related methods must request the
ACCESS_FINE_LOCATION permission at runtime
and in app's manifest file.
// Android Manifest
"android.permission.ACCESS_FINE_LOCATION"
// Runtime
Manifest.permission.ACCESS_FINE_LOCATION
Note: Dangerous Permission

14. Telephony API
TelephonyManager
• getCellLocation()
• getAllCellInfo()
• requestNetworkScan()
• requestCellInfoUpdate()
• getAvailableNetworks()
• getServiceState()

15. Telephony API
TelephonyScanManager
• requestNetworkScan()
TelephonyScanManager.NetworkScanCallback
• onResults()

16. Telephony API
PhoneStateListener
• onCellLocationChanged()
• onCellInfoChanged()
• onServiceStateChanged()

17. Bluetooth API
BluetoothAdapter
• startDiscovery()
• startLeScan()
BluetoothAdapter.LeScanCallback
BluetoothLeScanner
• startScan()

18. Wi-Fi API
WifiManager
• startScan()
• getScanResults()
• getConnectionInfo()
• getConfiguredNetworks()

19. Wi-Fi API
WifiAwareManager
WifiP2pManager
WifiRttManager

20. Screen Content Access
Using MediaProjection API instead of
READ_FRAME_BUFFER,
CAPTURE_VIDEO_OUTPUT or
CAPTURE_SECURE_VIDEO_OUTPUT
permission required methods
Note: Media Projection API
https://developer.android.com/reference/android/media/projection/MediaProjection

21. Non-resettable Identifiers
No more IMEI and serial number
Build.getSerial()
TelephonyManager.getImei()
TelephonyManager.getDeviceId()
TelephonyManager.getMeid()
TelephonyManager.getSimSerialNumber()
TelephonyManager.getSubscriberId()

22. Non-resettable Identifiers
Unique ID for ad-tracking or user analytics,
using Android Advertising ID
Otherwise, follow the Best practices for unique
identifiers guideline in Android Developers
Note: Best practices for unique identifiers
https://developer.android.com/training/articles/user-data-ids

23. MAC Address
The system transmits
randomized MAC addresses
by default

24. MAC Address
Enterprise use case
DevicePolicyManager.getWifiMacAddress()
DevicePolicyManager.getRandomizedMacAddress()

25. USB Device Serial Number
App cannot read the serial number until
the user has granted your app permission
to access the USB device or accessory

26. Clipboard Data
App cannot access clipboard
data until the app has focus

27. Wi-Fi Settings
No longer directly enable or
disable Wi-Fi
Solution: Use Settings Panels API
Note: Settings Panels API
https://developer.android.com/about/versions/10/features#settings-panels

28. Wi-Fi Settings
Restrictions on direct access to
configured Wi-Fi networks
Solution: Use WifiNetworkSpecifier API
and WifiNetworkSuggestion API
Note 1: WifiNetworkSpecifier API
https://developer.android.com/reference/android/net/wifi/WifiNetworkSpecifier
Note 2: WifiNetworkSpecifier API
https://developer.android.com/reference/android/net/wifi/WifiNetworkSuggestion

29. Contacts Provider
The platform doesn't keep track of
contacts affinity information

30. ContactOptionsColumns.LAST_TIME_CONTACTED
ContactOptionsColumns.TIMES_CONTACTED
DataUsageStatColumns.LAST_TIME_USED
DataUsageStatColumns.TIMES_USED
Contacts.markAsContacted()
DataUsageFeedback
Contacts.CONTENT_FREQUENT_URI
Contacts.CONTENT_STREQUENT_URI
Contacts.CONTENT_STREQUENT_FILTER_URI
Contacts.CONTENT_FILTER_URI
Contacts.ENTERPRISE_CONTENT_FILTER_URI

31. Starting Activities
The system places restrictions on
starting activities from the background
Note: Restrictions on starting activities from the background
https://developer.android.com/guide/components/activities/background-starts

32. Starting Activities
• The app has a visible window
• The app has an activity in the back stack of the
foreground task
• The app has an activity that was started very recently
• More!
Note: Restrictions on starting activities from the background
https://developer.android.com/guide/components/activities/background-starts

33. Target SDK Version
30

34. Phone Numbers
Must request the READ_PHONE_NUMBERS permission,
instead of the READ_PHONE_STATE permission to access
the phone number
TelephonyManager.getline1number()
TelecomManager.getline1number()

35. Phone Numbers
// Android Manifest
"android.permission.READ_PHONE_NUMBERS"
// Runtime
Manifest.permission.READ_PHONE_NUMBERS
Note: Dangerous Permission, API 29

36. Phone Numbers
<manifest>
...
<uses-permission
android:name="android.permission.READ_PHONE_STATE"
android:name="29" />
<uses-permission
android:name="android.permission.READ_PHONE_NUMBERS" />
...
</manifest>

37. Toast
Custom toasts from the background are
blocked, text toasts are still allowed
Some of custom toast's methods are
deprecated, use SnackBar

38. Camera
Only pre-installed system camera apps can respond to
Specific package name for the intent to use a specific
3rd-party camera app to capture images or videos
android.media.action.VIDEO_CAPTURE
android.media.action.IMAGE_CAPTURE
android.media.action.IMAGE_CAPTURE_SECURE

39. Firebase
Firebase JobDispatcher and GcmNetworkManager
calls are disabled on devices running Android 6.0
(API 23) or higher
Solution: Use WorkManager

40. Package Visibility
Apps can define the set of other
packages that they can access
The system makes some apps
visible to your app automatically,
but it hides other apps by default

41. Package Visibility
Using the <queries> element, apps can define
the set of other packages that they can access
<manifest>
<queries>
...
</queries>
</manifest>

42. Package Visibility
• By package name
• By intent signature
• By provider authority

43. Package Visibility
By package name
<queries>
<package android:name="com.example.store" />
<package android:name="com.example.services" />
</queries>

44. Package Visibility
By intent signature
<queries>
<intent>
<action android:name="android.intent.action.SEND" />
<data android:name="image/*" />
</intent>
</queries>

45. Package Visibility
By provider authority
<queries>
<provider
android:authorities="com.example.settings.files" />
</queries>

46. Package Visibility
<intent>
<action android:name="android.intent.action.TTS_SERVICE" />
</intent>
<intent>
<action android:name="android.speech.RecognitionService" />
</intent>

47. Package Visibility
To allow your app to see all other installed apps
• Launcher apps
• Browsers
• Security apps
Note: Normal Permission, API 30
"android.permission.QUERY_ALL_PACKAGES"

48. Scoped Storage
Giving better protection
to app and user data on
external storage
android:requestLegacyExternalStorage="true"

49. Scoped Storage
• App-specific files
• Shareable media (Image, Audio or Video)
• Documents and other files
• Access location information in images
Note: Android storage use cases and best practices
https://developer.android.com/training/data-storage/use-cases

50. Scoped Storage
App-specific files
Do nothing
getFilesDir()
getCacheDir()
getExternalFilesDir()
getExternalCacheDir()
Note: Android storage use cases and best practices
https://developer.android.com/training/data-storage/use-cases

51. Scoped Storage
Shareable media (Image, Audio or Video)
Use MediaStore API
Note: Android storage use cases and best practices
https://developer.android.com/training/data-storage/use-cases

52. Scoped Storage
Documents and other files
Use Storage Access Framework (SAF)
Note: Android storage use cases and best practices
https://developer.android.com/training/data-storage/use-cases

53. Scoped Storage
Access location information in images
Request ACCESS_MEDIA_LOCATION permission then use
MediaStore API to read unredacted location information in
images
Note: Android storage use cases and best practices
https://developer.android.com/training/data-storage/use-cases

54. Non-SDK Interface

55. Non-SDK Interface
Restricted non-SDK interfaces based on collaboration with
Android developers and the latest internal testing
You can request a new public API by creating a feature
request in issue tracker
Note: Request a new public API
https://developer.android.com/distribute/best-practices/develop/restrictions-non-sdk-interfaces#feature-request

56. Release > Testing > Pre-launch report > Overview

57. Thanks