Android Google Map 取得當前位置

國中時期的好朋友正在寫他的畢業專題，他希望當移動時地圖會立即更新當前位置

Activity程式碼如下： 

package com.example.aa;

import java.util.List;

import android.location.LocationManager;
import android.os.Bundle;

import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.MyLocationOverlay;
import com.google.android.maps.Overlay;


public class MainActivity extends MapActivity {
    private MapView mapView;
    private MapController controller;
    private MyLocationOverlay locationOverlay;
    private LocationManager locationManager;

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

    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }

    private void init() {
        mapView = (MapView) findViewById(R.id.MAP);
        locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
    
        mapView.setTraffic(true);
        mapView.setBuiltInZoomControls(true);
        controller = mapView.getController();
        controller.setZoom(14);

        List<Overlay> overlays = mapView.getOverlays();
        locationOverlay = new MyLocationOverlay(this, mapView);
        overlays.add(locationOverlay);
        locationOverlay.enableCompass();
        locationOverlay.enableMyLocation();
        locationOverlay.runOnFirstFix(new Runnable() {
            public void run() {
                controller.animateTo(locationOverlay.getMyLocation());
            }
        });
        
    }

    
}

Layout.xml如下： 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <com.google.android.maps.MapView
        android:id="@+id/MAP"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:apiKey="0PAijieTDH_kcO7YM_OERwTzP2RO7uqipai0osQ" 
        android:clickable="true"/>

</RelativeLayout>

AndroidManifest.xml如下： 

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.aa"
    android:versionCode="1"
    android:versionName="1.0" android:installLocation="preferExternal">

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.INTERNET"/>

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <uses-library android:name="com.google.android.maps" android:required="true"/>
    </application>

</manifest>

參考文章：
http://www.dotblogs.com.tw/alonstar/archive/2011/05/26/26282.aspx