Banner-tap entry point that shows the system mic prompt when the OS
will still surface one, and deep-links to Settings only on permanent
denial. Fixes the fresh-install trap where the mic entry isn't in the
Privacy pane until requestAccess has fired at least once.
Android tracks the first-asked state in SharedPreferences because
shouldShowRequestPermissionRationale returns false in two
observationally identical states (never asked vs permanently denied).
The existing initialize() request path writes the flag too, so a
banner tap after a record-then-deny correctly routes to Settings.
Refactored Android pendingPermission into PendingPermission(primary,
kind, cb) so audio-only requests check RECORD_AUDIO results instead
of always checking CAMERA.
New controller test exercises the Android path where create returns
with the iOS-style synchronous previewSize and the event then
revises it once CameraX's SurfaceRequest fires with the negotiated
resolution. Asserts that previewRotationQuarterTurns stays untouched
(events don't carry rotation; rotation is fixed per camera).
33/33 tests in test/camera/ now green.
Phase 1c+1d of the ux.camera plan (see ~/banlu/plans/ux_camera.md).
lib/src/camera/camera.dart — UxCameraController (ValueNotifier),
UxCameraValue, UxCameraDescription,
enums, UxCameraException,
uxAvailableCameras().
lib/src/camera/camera_backend.dart — abstract UxCameraBackend +
UxCameraCreateResult + sealed
UxCameraEvent variants.
lib/src/camera/camera_channel.dart — MethodChannelUxCameraBackend over
ux/camera + ux/camera/events. Per-
handle event demux. Maps
PlatformException → UxCameraException.
lib/src/camera/camera_preview.dart — UxCameraPreview: Texture-backed,
Hero-flightable preview widget.
lib/src/testing/fake_camera.dart — FakeUxCameraBackend with per-method
call lists + emitXxx event injection.
Exported from package:ux/testing.dart.
test/camera/camera_controller_test — 16 tests covering init/dispose,
orientation events, takePicture
(explicit + UxSensor fallback),
startVideoRecording / stop,
flip, flash, lock/unlock,
multi-instance, error propagation.
test/camera/camera_channel_test — 10 tests pinning the wire format
for every method + PlatformException
mapping.
Orientation snapshot for capture is computed Dart-side and passed in as an
explicit arg to takePicture / startVideoRecording (default falls back to
UxSensor.orientation at call time). Native never queries UIDevice itself
for the snapshot — Dart-side fakes drive orientation deterministically.
Native plugin code lands in Phase 2+; today every channel call throws
MissingPluginException at runtime, which is fine — the controller is only
mounted from the camera page once Phase 5 cuts over. The test backend
already exercises the full controller surface.
