Google I/O 2013 で発表された Fused Location Provider を使ってみる ref: http://qiita.com/amay077/items/b1849c6377f70d2060e0

AndroidManifest.xml

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

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.fusedlocationprovidersample.MainActivity"
            android:screenOrientation="portrait"
            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>

</manifest>

MainActivity.java

package com.example.fusedlocationprovidersample;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks;
import com.google.android.gms.common.GooglePlayServicesClient.OnConnectionFailedListener;
import com.google.android.gms.location.LocationClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import android.location.Location;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.app.Activity;

public class MainActivity extends Activity {

    // FusedLocationProvider 用の Client
    private LocationClient _locationClient;
    private TextView _textResult;

    // 以前とは package が違う LocationListener
    private final LocationListener _locationListener = new LocationListener() {

        @Override
        public void onLocationChanged(final Location location) {
            MainActivity.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    String text = _textResult.getText().toString();
                    text = DateFormat.format("hh:mm:ss.sss", location.getTime()) + " - " 
                            + location.getLatitude() + "/" +
                            + location.getLongitude() + "/" +
                            + location.getAccuracy() + 
                            "\n" + text;

                    _textResult.setText(text);
                }
            });
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        _textResult = (TextView)findViewById(R.id.text_result);

        final Button buttonLocate = (Button)findViewById(R.id.button_locate);
        buttonLocate.setOnClickListener(new OnClickListener() {
            private boolean _isStarted = false;

            @Override
            public void onClick(View v) {
                if (!_isStarted) {
                    startLocate();
                    buttonLocate.setText("Stop");
                } else {
                    stopLocate();
                    buttonLocate.setText("Start");
                }

                _isStarted = !_isStarted;
            }
        });
    }

    @Override
    protected void onDestroy() {
        stopLocate();
        super.onDestroy();
    }

    private void startLocate() {
        _locationClient = new LocationClient(this, new ConnectionCallbacks() {

            @Override
            public void onConnected(Bundle bundle) {
                // 2. 位置の取得開始！
                LocationRequest request = LocationRequest.create()
                .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
                .setInterval(5000); // 5秒おき
                _locationClient.requestLocationUpdates(request, _locationListener);
            }

            @Override
            public void onDisconnected() {
                _locationClient = null;
            }

        }, new OnConnectionFailedListener() {
            @Override
            public void onConnectionFailed(ConnectionResult result) {
            }
        });

        // 1. 位置取得サービスに接続！
        _locationClient.connect();
    }

    private void stopLocate() {
        if (_locationClient == null || !_locationClient.isConnected()) {
            return;
        }

        _locationClient.removeLocationUpdates(_locationListener);
        _locationClient.disconnect();
        // ConnectionCallbacks.onDisconnected が呼ばれるまで待った方がいい気がする
    }
}