Android LocationManager定位之获取经纬度以及城市信息

在安卓开发中有是需要记录用户位置用作用大数据分析，这些统计仅仅需要经纬度以及城市信息，不需要其他的信息，如果接入第三方定位sdk就会显得大材小用，使得程序的整个功能架构显得有些冗余，在不接入第三方定位SDK的前提下可以使用安卓原生的定位API（LocationManager，Geocoder），通过LocationManager可以直接获取到经纬度，然后通过Geocoder可以将经纬度转换为具体的城市信息。

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

List<String> providerList = locationManager.getProviders(true);
if (providerList .contains(LocationManager.GPS_PROVIDER)) {//GPRS
locationProvider = LocationManager.GPS_PROVIDER;
} else if (providerList .contains(LocationManager.NETWORK_PROVIDER)) {//wifi跟数据流量
locationProvider = LocationManager.NETWORK_PROVIDER;
} else {//表明没有打开GPRS定位或者没有开启wifi或者数据，或者没有相关权限
return;
Log.i(TAG, "无法获取该设备可用的定位工具");
}

locationManager.requestLocationUpdates(locationProvider, 1000, 1, locationListener);//监听每一秒的位置变化
LocationListener locationListener = new LocationListener() {

@Override
public void onStatusChanged(String provider, int status, Bundle arg2) {
//位置状态改变时调用该函数，比如：可用，不可应，无服务
}

@Override
public void onProviderEnabled(String provider) {
//定位打开时调用
}

@Override
public void onProviderDisabled(String provider) {
//定位关闭时调用
}

@Override
public void onLocationChanged(Location location) {
//监听位置变化，位置变化对应location发生变化

}
};

Location location = locationManager.getLastKnownLocation(locationProvider);//返回当前时间最后更新的位置即当前最新位置
if(location!=null){
double latitude = location.getLatitude();//维度
double longitude = location.getLongitude();//经度
}

List<Address> addsList = null;
Geocoder geocoder = new Geocoder(this);
try {
addList = geocoder.getFromLocation(latitude, longitude, 1);//得到的位置可能有多个当前只取其中一个
} catch (IOException e) {

e.printStackTrace();
}
if (addsList != null && addsList.size() > 0) {
for (int i = 0; i < addsList.size(); i++) {
Address ads = addsList.get(i);
latLongString = ads.getLocality();//拿到城市
}
}

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.INTERNET" />

import android.app.Activity;
import android.content.Context;
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.util.Log;

import java.io.IOException;
import java.util.List;

public class MainActivity extends Activity

{
private LocationManager locationManager;
private String locationProvider;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
List<String> providers = locationManager.getProviders(true);
if (providers.contains(LocationManager.GPS_PROVIDER)) {
locationProvider = LocationManager.GPS_PROVIDER;
} else if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
locationProvider = LocationManager.NETWORK_PROVIDER;
} else {
return;
}
locationManager.requestLocationUpdates(locationProvider, 3000, 1, locationListener);

}

LocationListener locationListener = new LocationListener() {

@Override
public void onStatusChanged(String provider, int status, Bundle arg2) {

}

@Override
public void onProviderEnabled(String provider) {

}

@Override
public void onProviderDisabled(String provider) {

}

@Override
public void onLocationChanged(Location location) {
double latitude = location.getLatitude();
double longitude = location.getLongitude();
String addString = null;
List<Address> addList = null;
Geocoder ge = new Geocoder(MainActivity.this);
try {
addList = ge.getFromLocation(latitude, longitude, 1);
} catch (IOException e) {

e.printStackTrace();
}
if (addList != null && addList.size() > 0) {
for (int i = 0; i < addList.size(); i++) {
Address ad = addList.get(i);
addString = ad.getLocality();//拿到城市
}
}
String locationStr = "维度：" + location.getLatitude()
+ "经度：" + location.getLongitude();
Log.i("andly", locationStr + "----" + addString);
}
};

@Override
protected void onDestroy() {
super.onDestroy();
if (locationManager != null) {
//移除监听器
locationManager.removeUpdates(locationListener);
}
}

}