Black screenshots in Flutter • Blank bug reports • Double-tap recording fix

Update the SDK: Ensure you are using shake_flutter v17.2.2 or higher. This version is specifically optimized to handle the new rendering and security hooks required by Android 15 and 16.

Initialization: In your main.dart, ensure Shake.start() is called after WidgetsFlutterBinding.ensureInitialized(). If it is called too early, the screenshot engine cannot properly bind to the Flutter surface.

Check FLAG_SECURE: If your screenshots are black, check your MainActivity.kt. If WindowManager.LayoutParams.FLAG_SECURE is set, Android force-blacks all screenshots for security.

The "Double-Tap" Flow: On Android 16, the first tap triggers a system-level security prompt ("Start recording or casting?"). The second tap starts the Shake recording. This is a system security requirement for user privacy on newer OS versions.

Repaint Boundary: If screens are still black, wrap your root widget (usually MaterialApp) in a RepaintBoundary. This ensures the Flutter engine provides a valid pixel buffer to the Shake SDK.