sensors_plus_watchos
The watchOS implementation of sensors_plus.
Motion samples come from CoreMotion (CMMotionManager) over dart:ffi.
Native updates cache the latest value and the Dart side polls it on a timer at
the requested sampling period.
Scaffolded by
flutter-watchos plugin portfromsensors_plus, then implemented and verified by hand.
Usage
This is a federated plugin implementation. Apps that already depend on
sensors_plus and target watchOS only need to add this package alongside it:
dependencies:
sensors_plus: ^<latest>
sensors_plus_watchos: ^0.0.1
The plugin registers automatically via Flutter's federated registry — no explicit imports required from app code.
Behaviour on watchOS
| Stream | watchOS |
|---|---|
accelerometerEventStream |
supported (raw acceleration, m/s²) |
userAccelerometerEventStream |
supported (gravity removed, via device motion) |
gyroscopeEventStream |
supported (rad/s) |
magnetometerEventStream |
supported (µT) |
barometerEventStream |
not implemented (separate altimeter API) |
Units and axis signs match the sensors_plus iOS implementation.
Simulator note: the watchOS Simulator has no motion hardware, so the streams emit nothing there. On a physical Apple Watch they stream normally.
Status
| Platform | Implemented |
|---|---|
Apple Watch (watchos) |
yes (accelerometer, gyroscope, magnetometer, user-accel) |
Watch simulator (watchsimulator) |
builds/links; no samples (no hardware) |
License
The FlutterWatch Authors under a BSD-3-Clause license. See LICENSE for the full text.