android 根据经纬度定位所在城市
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) { String latLongString; TextView myLocationText; myLocationText = (TextView)findViewById(R.id.myLocationText); if (location != null) { double lat = location.getLatitude(); double lng = location.getLongitude(); latLongString = "纬度:" + lat + "\n经度:" + lng; } else { latLongString = "无法获取地理信息"; } List<Address> addList = null; Geocoder ge = new Geocoder(this); try {addList = ge.getFromLocation(24.463, 118.1, 1);} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} if(addList!=null && addList.size()>0){ for(int i=0; i<addList.size(); i++){ Address ad = addList.get(i); latLongString += "\n"; latLongString += ad.getCountryName() + ";" + ad.getLocality(); } } myLocationText.setText("您当前的位置是:\n" +latLongString); }} 1 楼 aizhimin 2011-08-26 位置不准啊？怎么回事？我在上海 ，定位出来的却是厦门。 2 楼 aizhimin 2011-08-26 aizhimin 写道位置不准啊？怎么回事？我在上海 ，定位出来的却是厦门。