在 AndroidManifest.xml 中加上位置信息权限按需要添加
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <!-- 如果需要精确定位的话请加上此权限 --><uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <!-- 如果需要粗略定位的话请加上此权限 -->
添加授权弹窗代码
@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);// Workaround in https://stackoverflow.com/questions/16283079/re-launch-of-activity-on-home-button-but-only-the-first-time/16447508if (!isTaskRoot()) {// Android launched another instance of the root activity into an existing task// so just quietly finish and go away, dropping the user back into the activity// at the top of the stack (ie: the last state of this task)// Don't need to finish it again since it's finished in super.onCreate .return;}instance = this;//这里以ACCESS_COARSE_LOCATION为例if (AppActivity.instance.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION)!= PackageManager.PERMISSION_GRANTED) {//申请WRITE_EXTERNAL_STORAGE权限AppActivity.instance.requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION},GPSUtils.getInstance().LOCATION_CODE);//自定义的code 随便填一个数} else {// 用户以授权定位信息}}// 授权回调。询问是否同意授权的时候,系统会弹出对话框,我们选择之后,会进行回调。在回调里面进行判断。@Overridepublic void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {switch (requestCode) {case GPSUtils.LOCATION_CODE: {if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {// 权限被用户同意。// 执形我们想要的操作GPSUtils.getInstance().province = GPSUtils.getInstance().getProvince();} else {Log.i("GPS", "未授权定位权限");// 用户授权定位信息}}case GPSUtils.OPEN_GPS_CODE: {if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {// 权限被用户同意。// 执形我们想要的操作GPSUtils.getInstance().province = GPSUtils.getInstance().getProvince();} else {Log.i("GPS", "未授权定位权限");// 用户授权定位信息}}}}
通过实例获取 Lacation 得到 经纬度
这边
LocationManager locationManager = (LocationManager) AppActivity.instance.getSystemService(Context.LOCATION_SERVICE); // 默认Android GPS定位实例Location location = null;// 是否已经授权if (AppActivity.instance.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION)== PackageManager.PERMISSION_GRANTED){//判断GPS是否开启,没有开启,则开启// if(!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){// //跳转到手机打开GPS页面// Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);// //设置完成后返回原来的界面// AppActivity.instance.startActivityForResult(intent,OPEN_GPS_CODE);// }//// location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); // GPS芯片定位 需要开启GPS// location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER); // 利用网络定位 需要开启GPSlocation = locationManager.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER); // 其他应用使用定位更新了定位信息 需要开启GPS}String p = "";if(location != null){Log.i("GPS: ", "获取位置信息成功");Log.i("GPS: ","经度:" + location.getLatitude());Log.i("GPS: ","纬度:" + location.getLongitude());}else{Log.i("GPS: ", "获取位置信息失败");}
/** 根据经度纬度 获取国家,省份* */public String getAddress(double latitude, double longitude) {String cityName = "";List<Address> addList = null;Geocoder ge = new Geocoder(AppActivity.instance);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);Log.i("GPS 国家: ", ad.getCountryName());Log.i("GPS: 省份", ad.getAdminArea());Log.i("GPS: 详细地址", ad.getFeatureName());cityName += ad.getCountryName() + " " + ad.getLocality();}}return cityName;}
搞定。
下面是我写了个工具类
package org.cocos2dx.javascript;import android.annotation.TargetApi;import android.content.Context;import android.location.Address;import android.location.Geocoder;import android.location.Location;import android.location.LocationManager;import android.os.Build;import android.util.Log;import java.io.IOException;import java.util.List;import android.Manifest;import android.content.pm.PackageManager;/*** Created by Administrator on 2018/4/17.* 获取用户的地理位置*/public class GPSUtils {private static GPSUtils instance;private LocationManager locationManager;public static final int LOCATION_CODE = 1000;public static final int OPEN_GPS_CODE = 1001;public String province = "";public static GPSUtils getInstance() {if (instance == null) {instance = new GPSUtils();}return instance;}@TargetApi(Build.VERSION_CODES.M)public String getProvince() {Log.i("GPS: ", "getProvince");locationManager = (LocationManager) AppActivity.instance.getSystemService(Context.LOCATION_SERVICE); // 默认Android GPS定位实例Location location = null;// 是否已经授权if (AppActivity.instance.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION)== PackageManager.PERMISSION_GRANTED){//判断GPS是否开启,没有开启,则开启// if(!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){// //跳转到手机打开GPS页面// Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);// //设置完成后返回原来的界面// AppActivity.instance.startActivityForResult(intent,OPEN_GPS_CODE);// }//// location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); // GPS芯片定位 需要开启GPS// location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER); // 利用网络定位 需要开启GPSlocation = locationManager.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER); // 其他应用使用定位更新了定位信息 需要开启GPS}String p = "";if(location != null){Log.i("GPS: ", "获取位置信息成功");Log.i("GPS: ","经度:" + location.getLatitude());Log.i("GPS: ","纬度:" + location.getLongitude());// 获取地址信息p = getAddress(location.getLatitude(),location.getLongitude());Log.i("GPS: ","location:" + p);}else{Log.i("GPS: ", "获取位置信息失败,请检查是够开启GPS,是否授权");}return p;}/** 根据经度纬度 获取国家,省份* */public String getAddress(double latitude, double longitude) {String cityName = "";List<Address> addList = null;Geocoder ge = new Geocoder(AppActivity.instance);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);cityName += ad.getCountryName() + " " + ad.getLocality();}}return cityName;}}
调用 getProvince() 运行结果
选择Location Provider:
Android系统存在多种provider,分别是
GPS_PROVIDER:
这个就是手机里有GPS芯片,然后利用该芯片就能利用卫星获得自己的位置信息。但是在室内,GPS定位基本没用,很难定位的到。
NETWORK_PROVIDER:
这个就是利用网络定位,通常是利用手机基站和WIFI节点的地址来大致定位位置,这种定位方式取决于服务器,即取决于将基站或WIF节点信息翻译成位置信息的服务器的能力。由于目前大部分Android手机没有安装google官方的location manager库,大陆网络也不允许,即没有服务器来做这个事情,自然该方法基本上没法实现定位。
PASSIVE_PROVIDER:
被动定位方式,这个意思也比较明显,就是用现成的,当其他应用使用定位更新了定位信息,系统会保存下来,该应用接收到消息后直接读取就可以了。比如如果系统中已经安装了百度地图,高德地图(室内可以实现精确定位),你只要使用它们定位过后,再使用这种方法在你的程序肯定是可以拿到比较精确的定位信息。用户可以直接指定某一个provider
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