AccelerometerFeaturesProbe

Collects user accelerometer data over a sampling period and calculates a set of features from it, as an AccelerationFeatures data point.

Configured with a PeriodicSamplingConfiguration configuration.

Inheritance

• Object
• AbstractExecutor<Measure>
• Probe
• StreamProbe
• PeriodicStreamProbe
• BufferingPeriodicStreamProbe
• AccelerometerFeaturesProbe

Constructors

AccelerometerFeaturesProbe

AccelerometerFeaturesProbe()

Properties

bufferingStream

1. @override

Stream get bufferingStream

override

The stream of events to buffer. Implemented by subclasses.

sensorEndTime

int? sensorEndTime

getter/setter pair

End of the last sampling period, in microseconds since epoch.

sensorStartTime

int sensorStartTime

getter/setter pair

Start of the current sampling period, in microseconds since epoch.

userAccelerometerEventList

List<UserAccelerometerEvent> userAccelerometerEventList

getter/setter pair

The events buffered in the current sampling period.

Methods

getMeasurement

1. @override

Future<Measurement?> getMeasurement()

override

Returns the Measurement for the last sampling window.

Implemented by subclasses.

Can return null if no data is available. Can return an Error if an error occurs.

onSamplingData

1. @override

void onSamplingData(

1. dynamic event

)

override

Called for each event on bufferingStream; buffers it.

onSamplingEnd

1. @override

void onSamplingEnd()

override

Called when a sampling window ends, before getMeasurement.

onSamplingStart

1. @override

void onSamplingStart()

override

Called when a sampling window starts, before listening.