android GPS定位，定位城市称，经纬度

package com.test;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.location.Address;import android.location.Criteria;import android.location.Geocoder;import android.location.Location;import android.location.LocationManager;import android.os.Bundle;import android.provider.Settings;import android.widget.TextView;import android.widget.Toast;import java.io.IOException;import java.util.List;public class Test2 extends Activity {    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        openGPSSettings();           }        private void openGPSSettings() {        LocationManager alm = (LocationManager) this                .getSystemService(Context.LOCATION_SERVICE);        if (alm                .isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) {            Toast.makeText(this, "GPS模块正常", Toast.LENGTH_SHORT)                    .show();            doWork();            return;        }        Toast.makeText(this, "请开启GPS！", Toast.LENGTH_SHORT).show();        Intent intent = new Intent(Settings.ACTION_SECURITY_SETTINGS);        startActivityForResult(intent,0); //此为设置完成后返回到获取界面    }        private void doWork() {        String msg = "";        TextView textView = (TextView) findViewById(R.id.tv1);        LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);        Criteria criteria = new Criteria();        // 获得最好的定位效果        criteria.setAccuracy(Criteria.ACCURACY_FINE);        criteria.setAltitudeRequired(false);        criteria.setBearingRequired(false);        criteria.setCostAllowed(false);        // 使用省电模式        criteria.setPowerRequirement(Criteria.POWER_LOW);        // 获得当前的位置提供者        String provider = locationManager.getBestProvider(criteria, true);        // 获得当前的位置        Location location = locationManager.getLastKnownLocation(provider);                        Geocoder gc = new Geocoder(this);         List<Address> addresses = null;        try {            addresses = gc.getFromLocation(location.getLatitude(), location.getLongitude(), 1);        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } if (addresses.size() > 0) {         msg += "AddressLine：" + addresses.get(0).getAddressLine(0)+ "\n";         msg += "CountryName：" + addresses.get(0).getCountryName()+ "\n";         msg += "Locality：" + addresses.get(0).getLocality() + "\n";         msg += "FeatureName：" + addresses.get(0).getFeatureName();         }         textView.setText(msg);    }}

Manifest 权限：

<uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FIND_LOCATION" /><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>

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