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Article | REF: H1595 V2

Programming of sensors on mobile devices -Google Android

Author: Frédéric LEMOINE

Publication date: December 10, 2021 | Lire en français

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    4. Interaction with sensors

    The listener object (observer) must implement the SensorEventListener interface, which has two functions.

    • The abstract void onAccuracyChanged(Sensor sensor, int accuracy) function is called when sensor accuracy has changed. This function provides an estimate of the measurement accuracy. Possible values are given in table 8 .

      A measurement with SensorManager.SENSOR_STATUS_UNRELIABLE status must not be used. This value is unreliable.

      Recalibrating the sensor can often improve measurement quality.

    • The abstract void onSensorChanged(SensorEvent event) function is called when the quantity measured by the sensor has changed. This function is the most useful. The object passed as a parameter (SensorEvent...

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