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

    <uses-sdk android:minSdkVersion="7" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".UserLocation"
            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>

package max.userLocation;

import android.app.Activity;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class UserLocation extends Activity {
    /** Called when the activity is first created. */
    Button userLocationBtn = null;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        userLocationBtn = (Button) findViewById(R.id.buttonId);
        userLocationBtn.setOnClickListener(new userLocationBtnListener());
    }
    class userLocationBtnListener implements OnClickListener {

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            LocationManager locationManager = (LocationManager) MainActivity.this.getSystemService(Context.LOCATION_SERVICE);
            定义当前使用的定位方式，一个是时间（多长时间来更新位置，只是一个参考值），一个是距离（最小距离）。绑定监听器。
            locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new userLocationListener());
        }
    }
    class userLocationListener implements LocationListener {
　　　　　//当设备的位置发生改变就会调用这个方法 度 分 秒 double类型的
        @Override
        public void onLocationChanged(Location location) {
            // TODO Auto-generated method stub
            System.out.println("经度:" +location.getLongitude());
            System.out.println("纬度:" +location.getLatitude());
            
        }

        @Override
        public void onProviderDisabled(String provider) {
            // TODO Auto-generated method stub
            
        }
        //
        @Override
        public void onProviderEnabled(String provider) {
            // TODO Auto-generated method stub
            
        }
        //当状态改变的时候
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {
            // TODO Auto-generated method stub
            
        }
    }
}