Using SensorManager to calculate acceleration and check if it is still : SensorManager « Hardware « Android

1. Android
2. Hardware
3. SensorManager

Using SensorManager to calculate acceleration and check if it is still

 
//package com.hairy.nipples.util;

import android.hardware.SensorManager;

class AccelerationUtil {
  public static double calculateAcceleration(float[] values) {
    double acceleration = Math.sqrt(Math.pow(values[0], 2)
        + Math.pow(values[1], 2) + Math.pow(values[2], 2));
    return acceleration;
  }
  
  public static boolean isStandingStill(float[] accelerationValues) {
    double acceleration = calculateAcceleration(accelerationValues);

    // If acceleration doesn't differ from earth's gravity more than 10%, then
    // it's safe to assume that phone is standing still
    if (acceleration > SensorManager.GRAVITY_EARTH * 0.9
        && acceleration < SensorManager.GRAVITY_EARTH * 1.1) {
      return true;
    }
    return false;
  }
}

   
  

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