转自http://www.thinksaas.cn/group/topic/215488/，更改了他默认写死的经纬度，可以得到正确的定位

requires ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION permission.

package com.studio.android.chp08.ex01;

import java.io.IOException;

import java.util.List;

import android.app.Activity;

import android.content.Context;

import android.location.Address;

import android.location.Criteria;

import android.location.Geocoder;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.Bundle;

import android.widget.TextView;

public class CurrentLocation extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

LocationManager locationManager;

String serviceName = Context.LOCATION_SERVICE;

locationManager = (LocationManager)getSystemService(serviceName);

// String provider = LocationManager.GPS_PROVIDER;

String provider = LocationManager.NETWORK_PROVIDER;

Criteria criteria = new Criteria();

criteria.setAccuracy(Criteria.ACCURACY_FINE);

criteria.setAltitudeRequired(false);

criteria.setBearingRequired(false);

criteria.setCostAllowed(true);

criteria.setPowerRequirement(Criteria.POWER_LOW);

// String provider = locationManager.getBestProvider(criteria, true);

Location location = locationManager.getLastKnownLocation(provider);

updateWithNewLocation(location);

locationManager.requestLocationUpdates(provider, 2000, 10,

locationListener);

}

private final LocationListener locationListener = new LocationListener() {

public void onLocationChanged(Location location) {

updateWithNewLocation(location);

}

public void onProviderDisabled(String provider){

updateWithNewLocation(null);

}

public void onProviderEnabled(String provider){ }

public void onStatusChanged(String provider, int status,

Bundle extras){ }

};

private void updateWithNewLocation(Location location) {

double lat = 0;

double lng = 0;

String latLongString;

TextView myLocationText;

myLocationText = (TextView) findViewById(R.id.myLocationText);

if (location != null) {

lat = location.getLatitude();

lng = location.getLongitude();

DecimalFormat df = new  DecimalFormat("#.###");

//lat = df.format(lat);

//lng = df.format(lng);

//latLongString = "纬度:" + df.format(lat) + "n经度:" + df.format(lng);

latLongString = "纬度:" + lat + "n经度:" + lng;

} else {

latLongString = "无法获取地理信息";

}

List