locationmanager
参考：Android获取当前位置的经纬度
示例：
public class MainActivityI extends Activity {
private LocationUtils locationUtil;
@Override
protected void onCreate(Bundle savedinstanceState) {
super.onCreate(savedInstanceState);
setcontentView(R.layout.activity_main);
locationUtil = LocationUtils.getInstance(this);
}
protected void onDestroy() {
super.onDestroy();
locationUtil.removeLocationUpdatesListener();
}
}所需权限：
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WiFi_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />工具类：
package com.example.locationdemo;
import android.content.context;
import android.content.intent;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.provider.settings;
import android.widget.toast;
import java.io.IOException;
import java.util.List;
import java.util.locale;
/*
* 注意
* 1、Android6.0动态权限,
* 2、Geocoder获取地理位置信息是一个后台的耗时操作，
* 为了不阻塞主线程，强力建议在使用Geocoder获取地理位置信息时采用异步线程的方式来请求服务，这样不会造成主线程的阻塞。
* */
public class LocationUtils {
private volatile static LocationUtils uniqueInstance;
private LocationManager locationManager;
private Context mContext;
private LocationUtils(Context context) {
mContext = context;
getLocation();
}
//采用Double CheckLock(DCL)实现单例
public static LocationUtils getInstance(Context context) {
if (uniqueInstance == null) {
synchronized (LocationUtils.class) {
if (uniqueInstance == null) {
uniqueInstance = new LocationUtils(context);
}
}
}
return uniqueInstance;
}
private void getLocation() {
//1.获取位置管理器
locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
//2.获取位置提供器，GPS或是NetWork
// 获取所有可用的位置提供器
List<String> providerList = locationManager.getProviders(true);
String locationProvider;
if (providerList.contains(LocationManager.GPS_PROVIDER)) {
//GPS 定位的精准度比较高，但是非常耗电。
System.out.println("=====GPS_PROVIDER=====");
locationProvider = LocationManager.GPS_PROVIDER;
} else if (providerList.contains(LocationManager.NETWORK_PROVIDER)) {//Google服务被墙不可用
//网络定位的精准度稍差，但耗电量比较少。
System.out.println("=====NETWORK_PROVIDER=====");
locationProvider = LocationManager.NETWORK_PROVIDER;
} else {
System.out.println("=====NO_PROVIDER=====");
// 当没有可用的位置提供器时，弹出Toast提示用户
toast.maketext(mContext, "No location provider to use", Toast.LENGTH_SHORT).show();
Intent intent = new Intent();
intent.setAction(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
return;
}
//3.获取上次的位置，一般第一次运行，此值为null
Location location = locationManager.getLastKnownLocation(locationProvider);
if (location != null) {
// 显示当前设备的位置信息
System.out.println("==显示当前设备的位置信息==");
showLocation(location);
} else {//当GPS信号弱没获取到位置的时候可从网络获取
System.out.println("==Google服务被墙的解决办法==");
getLngAndLatwithNetwork();//Google服务被墙的解决办法
}
// 监视地理位置变化，第二个和第三个参数分别为更新的最短时间minTime和最短距离minDistace
//LocationManager 每隔 5 秒钟会检测一下位置的变化情况，当移动距离超过 10 米的时候，
// 就会调用 LocationListener 的 onLocationChanged() 方法，并把新的位置信息作为参数传入。
locationManager.requestLocationUpdates(locationProvider, 5000, 10, locationListener);
}
//获取经纬度
private void showLocation(Location location) {
double latitude = location.getLatitude();//纬度
double longitude = location.getLongitude();//经度
getAddress(latitude, longitude);
}
private void getAddress(double latitude, double longitude) {
//Geocoder通过经纬度获取具体信息
Geocoder gc = new Geocoder(mContext, Locale.getDefault());
try {
List<Address> locationList = gc.getFromLocation(latitude, longitude, 1);
if (locationList != null) {
Address address = locationList.get(0);
String countryName = address.getCountryName();//国家
String countryCode = address.getCountryCode();
String adminArea = address.getAdminArea();//省
String locality = address.getLocality();//市
String subAdminArea = address.getSubAdminArea();//区
String featureName = address.getFeatureName();//街道
for (int i = 0; address.getAddressLine(i) != null; i++) {
String addressLine = address.getAddressLine(i);
//街道名称:广东省深圳市罗湖区蔡屋围一街深圳瑞吉酒店
System.out.println("addressLine=====" + addressLine);
}
String currentPosition = "latitude is " + latitude//22.545975
+ "\n" + "longitude is " + longitude//114.101232
+ "\n" + "countryName is " + countryName//null
+ "\n" + "countryCode is " + countryCode//CN
+ "\n" + "adminArea is " + adminArea//广东省
+ "\n" + "locality is " + locality//深圳市
+ "\n" + "subAdminArea is " + subAdminArea//null
+ "\n" + "featureName is " + featureName;//蔡屋围一街深圳瑞吉酒店
System.out.println(currentPosition);
}
} catch (IOException e) {
e.printstacktrace();
}
}
public void removeLocationUpdatesListener() {
if (locationManager != null) {
uniqueInstance = null;
locationManager.removeUpdates(locationListener);
}
}
private 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 arg2) {
}
// 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) {
System.out.println("==onLocationChanged==");
showLocation(location);
}
};
//从网络获取经纬度
private void getLngAndLatWithNetwork() {
LocationManager locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 5000, 10, locationListener);
Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
showLocation(location);
}
}