StreamProbe

A probe that forwards every Measurement from a stream while resumed.

Subclasses implement stream. Resuming fails if stream is null, e.g. when its device is not connected. See ScreenProbe for an example.

Inheritance

• Object
• AbstractExecutor<Measure>
• Probe
• StreamProbe

Implementers

• AppLifecycleProbe
• BufferingIntervalStreamProbe
• PedometerProbe
• PeriodicStreamProbe
• ScreenProbe
• SensorProbe
• StepCountProbe

Constructors

StreamProbe

StreamProbe()

Properties

stream

Stream<Measurement>? get stream

The stream of Measurements to forward. Implemented by subclasses.

Read on the first resume after creation or a pause.

Methods

onPause

1. @override

Future<bool> onPause()

override

Called by pause. Returns true if successfully paused.

If false, the state is not changed.

onResume

1. @override

Future<bool> onResume()

override

Called by resume. Returns true if successfully resumed.

If false, the executor moves to ExecutorState.PausedButShouldBeResumed.