Extending the Android SDK - SDKExtensions
summary
Explains how SDK Extensions use Modular System Components and APEX modules delivered via Google Play to backport Android 13’s Photo Picker to devices as old as Android 11; requires compileSdk 33 plus an extensions level (R2+), runtime checks via SDKExtensions.getExtensionVersion or the provided ActivityResultContract PickVisualMedia, and an adb command to show installed extension versions. Demo app launches the backported picker on an Android 11 device and successfully returns a URI.
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chapters (10)
- 0:00Introduction to SDK extensions
- 1:21Project Treble overview
- 3:45Modularizing system components
- 6:40Project Mainline architecture
- 8:36Apex and SDK extensions
- 10:18Versioning and implementation
- 13:51Configuring for backporting
- 16:46Using Activity result contracts
- 19:36Code demonstration
- 27:43Configuration and conclusion
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