iewnait

@Override
public void onSensorChanged(SensorEvent event) {		
	if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
		float[] values = event.values;
		// Movement
		float xAxisValue = values[0];			
		float yAxisValue = values[1];
		float zAxisValue = values[2];			
		
		float resultant = (float) Math.sqrt(Math.pow(xAxisValue, 2)+

iewnait

mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

//Power on Accelerometer Sensor 
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER)
mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_UI);

//Power on mMagnetometer Sensor 
mMagnetometer = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
mSensorManager.registerListener(this, mMagnetometer, SensorManager.SENSOR_DELAY_UI);

iewnait

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 WIMM Labs Incorporated -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:wimm="http://schemas.wimm.com/android"    
    package="com.wimm.demo.accelerometerdemo"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="7" />
    

iewnait

/* 
 * Copyright (C) 2012 WIMM Labs Incorporated
 */

package com.wimm.demo.accelerometerdemo;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;

iewnait

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 WIMM Labs Incorporated -->
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/textView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:textColor="#000"
    android:gravity="center"
    android:text="@string/prompt"/>

iewnait

@Override
public void onSensorChanged(SensorEvent event) {
	if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
		if (isShakeDetected(event)) {
			// If we detected a shake, update to the next background color.
			mBackgroundColorIndex = (mBackgroundColorIndex + 1) % mBackgroundColorArray.length;
			mTargetView.setBackgroundColor(mBackgroundColorArray[mBackgroundColorIndex]);
		}
	}
}

iewnait

@Override
protected void onResume() {
	super.onResume();
	setAccelerometerUpdatesEnabled(true);
}

@Override
protected void onPause() {
	super.onPause();
	setAccelerometerUpdatesEnabled(false);

iewnait

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 WIMM Labs Incorporated -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:wimm="http://schemas.wimm.com/android"        
    package="com.wimm.demo.magnetometerdemo"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="7" />
	<uses-permission android:name="android.permission.WAKE_LOCK" />

iewnait

public class MagnetometerDemoActivity extends LauncherActivity implements SensorEventListener {
    public static final String TAG = MagnetometerDemoActivity.class.getSimpleName();

    /**
     * We could use Math.toDegrees(), but we can take away division from 
     * calculations by just multiplying by this static value instead.
     */
    public static float TO_DEGREES = (1 / (float) Math.PI) * 180;    

    /* 

iewnait

@Override
public void onSensorChanged(SensorEvent event) {
	switch (event.sensor.getType()) {
	case Sensor.TYPE_ACCELEROMETER:
		// We need both the acceleration and magnetometer data to determine
		// compass rotation. Save these values.
		mAccelerationVals = event.values.clone();
		break;
	case Sensor.TYPE_MAGNETIC_FIELD:
		// We need both the acceleration and magnetometer data to determine