Android Question Reduced Power Consumption with Sensor Co-Processor

Sub Service_Create
   
    sensor.Initialize2(sensor.TYPE_ACCELEROMETER,0)

Sub Sensor_SensorChanged (Values() As Float)
    DAS.DataArray(1,ArrayPoint)=Values(0)
    DAS.DataArray(2,ArrayPoint)=Values(1)
    DAS.DataArray(3,ArrayPoint)=Values(2)
    ArrayPoint=ArrayPoint+1
    If ArrayPoint>(DAS.ArraySize-1) Then ArrayPoint=0
End Sub

1. Create a sensor manager instance.
2. Register a listener for the STEP_COUNTER sensor type.
3. Implement a SensorEvent callback function, onSensorChanged(), which serves the STEP_COUNTER sensor events.
4. Make sure to handle the initial step-count value accordingly. As per definition the STEP_COUNTER will reset its value at system restart and increment it as long as there is a client application for it. This means that any application using it needs to track the start-offset itself, see variables mStepsSInceBoot and mLastReport in the java file for an example.
5. Discard any OnPause() or other power management handling, this is not needed when having a built-in step counter. The sensor co-processor will be notified when the system goes up or down, and only send events when the system is up.
6. During system down, the sensor co-processor will keep tracking steps and send an event as soon as the system is up. No action is needed in your app.

To support devices without the sensor co-processor, however, you will need to maintain a fallback solution of streaming raw accelerometer data instead of using the built-in step counter sensor type.

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Implement a SensorEvent callback function, onSensorChanged()

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PhilipK said:

In the low power mode, type 19, how do I access the acceleration data?

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