Android使用GPS获取用户地理位置并监听位置变化的方法

/* LocationActivity.java
 * @author octobershiner
 * 2011 7 22
 * SE.HIT
 * 一个演示定位用户的位置并且监听位置变化的代码
 * */
package uni.location;
import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Vibrator;
import android.util.Log;
import android.widget.TextView;
public class LocationActivity extends Activity {
 /** Called when the activity is first created. */
 //创建lcoationManager对象
 private LocationManager manager;
 private static final String TAG = "LOCATION DEMO";
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  //获取系统的服务，
  manager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
  Location location = manager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
  //第一次获得设备的位置
  updateLocation(location);
  //重要函数，监听数据测试
  manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 6000, 10,
   locationListener);
 }
 /*此处更新一下，当activity不处于活动状态时取消GPS的监听*/
  public void onPause(){
  super.onPause();
  locationManager.removeListener(locationListener);
 }
 //创建一个事件监听器
 private final LocationListener locationListener = new LocationListener() {
   public void onLocationChanged(Location location) {
   updateLocation(location);
   }
   public void onProviderDisabled(String provider){
    updateLocation(null);
    Log.i(TAG, "Provider now is disabled..");
   }
   public void onProviderEnabled(String provider){
    Log.i(TAG, "Provider now is enabled..");
   }
   public void onStatusChanged(String provider, int status,Bundle extras){ }
 };
//获取用户位置的函数，利用Log显示
 private void updateLocation(Location location) {
   String latLng;
   if (location != null) {
   double lat = location.getLatitude();
   double lng = location.getLongitude();
   latLng = "Latitude:" + lat + " Longitude:" + lng;
   } else {
   latLng = "Can't access your location";
   }
   Log.i(TAG, "The location has changed..");
   Log.i(TAG, "Your Location:" +latLng);
 }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="uni.location"
  android:versionCode="1"
  android:versionName="1.0">
 <uses-sdk android:minSdkVersion="8" />
 <application android:icon="@drawable/icon" android:label="@string/app_name"> 
  <activity android:name=".LocationActivity"
     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>