Penggunaan GPS dan Accelerometer Berbasis Android

File Main Activity.java

package com.example.coba;

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.Menu;
import android.widget.TextView;
import android.widget.Toast;
import android.app.Activity;
import android.content.Context;

public class MainActivity extends Activity implements SensorEventListener
{
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
magnetX = (TextView) findViewById(R.id.textView5);
magnetY = (TextView) findViewById(R.id.textView1);
magnetZ = (TextView) findViewById(R.id.textView3);

/* Use the LocationManager class to obtain GPS locations */
LocationManager locManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
LocationListener locListener = new MyLocationListener();
locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locListener);


mSensorManager = (SensorManager) this.getSystemService(SENSOR_SERVICE);
mSensorManager.registerListener(this, mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
mAccel = 0.00f;
mAccelCurrent = SensorManager.GRAVITY_EARTH;
mAccelLast = SensorManager.GRAVITY_EARTH;
}

SensorManager mSensorManager;
private float mAccel; // acceleration apart from gravity
private float mAccelCurrent; // current acceleration including gravity
private float mAccelLast; // last acceleration including gravity

TextView longitu;
TextView latitu;
TextView magnetX;
TextView magnetY;
TextView magnetZ;

/* Class My Location Listener */
public class MyLocationListener implements LocationListener
{
@Override
public void onLocationChanged(Location loc)
{
double latitude = loc.getLatitude();
double longitude = loc.getLongitude();
longitu.setText(Double.toString(longitude));
latitu.setText(Double.toString(latitude));
Toast toast = Toast.makeText(getApplicationContext(),"Device has shaken.", Toast.LENGTH_SHORT);
toast.show();
}

@Override
public void onProviderDisabled(String provider)
{
Toast.makeText(getApplicationContext(), "GPS Disabled", Toast.LENGTH_SHORT).show();
}

@Override
public void onProviderEnabled(String provider)
{
Toast
.makeText(getApplicationContext(), "GPS Enabled", Toast.LENGTH_SHORT)
.show();
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras)
{
}
}



public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

public void onAccuracyChanged(Sensor sensor, int accuracy)
{
// Ignoring this for now
}

public void onSensorChanged(SensorEvent se)
{
float x = se.values[0];
float y = se.values[1];
float z = se.values[2];
mAccelLast = mAccelCurrent;
mAccelCurrent = (float) Math.sqrt((double) (x * x + y * y + z * z));
float delta = mAccelCurrent - mAccelLast;
mAccel = mAccel * 0.9f + delta; // perform low-cut filter
magnetX.setText(Float.toString(x));
magnetY.setText(Float.toString(y));
magnetZ.setText(Float.toString(z));
if (mAccel > 12)
{
Toast toast = Toast.makeText(getApplicationContext(),"Device has shaken.", Toast.LENGTH_SHORT);
toast.show();
}

}

protected void onPause()
{
// Unregister the listener
mSensorManager.unregisterListener(this);
super.onPause();
}

protected void onStop()
{
// Unregister the listener
mSensorManager.unregisterListener(this);
super.onStop();
}

protected void onResume()
{
super.onResume();
// Register magnetic sensor
mSensorManager.registerListener(this,mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
}

}




File activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/mag_x"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/textView2"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="188dp"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/textZ"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView2"
        android:layout_below="@+id/textY"
        android:layout_marginLeft="49dp"
        android:layout_marginTop="29dp"
        android:text="Z"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textY"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/textZ"
        android:layout_below="@+id/textView2"
        android:layout_marginTop="28dp"
        android:text="Y"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textY"
        android:layout_alignRight="@+id/textView2"
        android:layout_marginRight="52dp"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textZ"
        android:layout_alignBottom="@+id/textZ"
        android:layout_alignLeft="@+id/textView1"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textY"
        android:layout_alignLeft="@+id/textZ"
        android:text="X"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView2"
        android:layout_alignBottom="@+id/textView2"
        android:layout_alignRight="@+id/textView1"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textView5"
        android:layout_marginBottom="18dp"
        android:layout_toLeftOf="@+id/textView5"
        android:text="Acceleration"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView7"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView6"
        android:layout_alignParentTop="true"
        android:layout_marginTop="20dp"
        android:text="Longitude :"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView8"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView7"
        android:layout_below="@+id/textView7"
        android:layout_marginTop="28dp"
        android:text="Latitude :"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView9"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textView8"
        android:layout_marginLeft="23dp"
        android:layout_toRightOf="@+id/textView7"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView10"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView8"
        android:layout_alignBottom="@+id/textView8"
        android:layout_alignLeft="@+id/textView9"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>



File AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.coba"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.coba.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

</manifest>