Blue flash light (Arc) on Google Maps

问题

Is there any way to have access to the blue flash light appears on google map? I have read in different forums that this blue arc is representative of the reliability of the magnet sensor, is there any way to have access to it in android?

回答1:

I went through Android SDK for magnet outputs. I have found one method that measure the accuracy of magnet based direction of movement. Have you seen following method?

@Override
public void onAccuracyChanged(Sensor sensor, int i) {
    if(sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD){

    }
}

This outputs the accuracy in 4 levels for magnet based heading estimation.

来源：https://stackoverflow.com/questions/53984194/blue-flash-light-arc-on-google-maps