Android中通过GPS或NetWork获取当前位置的经纬度
今天在Android项目中要实现一个通过GPS或NetWork来获取当前移动终端设备的经纬度功能。要实现该功能要用到android Framework 中的 LocationManager 类。下面我就直接贴上主要的代码说明如何实现通过GPS或NetWork来获取实时位置的经纬度。view plain copy
[*]private double latitude=0.0;
[*]private double longitude =0.0;
[*]
[*]LocationManager locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
[*] if(locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){
[*] Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
[*] if(location != null){
[*] latitude = location.getLatitude();
[*] longitude = location.getLongitude();
[*] }
[*] }else{
[*] LocationListener locationListener = new LocationListener() {
[*]
[*] // Provider的状态在可用、暂时不可用和无服务三个状态直接切换时触发此函数
[*] @Override
[*] public void onStatusChanged(String provider, int status, Bundle extras) {
[*]
[*] }
[*]
[*] // Provider被enable时触发此函数,比如GPS被打开
[*] @Override
[*] public void onProviderEnabled(String provider) {
[*]
[*] }
[*]
[*] // Provider被disable时触发此函数,比如GPS被关闭
[*] @Override
[*] public void onProviderDisabled(String provider) {
[*]
[*] }
[*]
[*] //当坐标改变时触发此函数,如果Provider传进相同的坐标,它就不会被触发
[*] @Override
[*] public void onLocationChanged(Location location) {
[*] if (location != null) {
[*] Log.e("Map", "Location changed : Lat: "
[*] + location.getLatitude() + " Lng: "
[*] + location.getLongitude());
[*] }
[*] }
[*] };
[*] locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,1000, 0,locationListener);
[*] Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
[*] if(location != null){
[*] latitude = location.getLatitude(); //经度
[*] longitude = location.getLongitude(); //纬度
[*] }
[*] }
同时别忘了在AndroidManifest.xml文件中加入如下权限: <!-- 连接互联网Internet权限 -->
<uses-permission android:name="android.permission.INTERNET" />
<!-- GPS定位权限 -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
说明:本人在真机中测试上述的功能,可以正确获取得了移动终端实时位置的经纬度。
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