这是一套完整的代码,模拟器与真机调试可用
1.首先得注册权限
android:name="android.permission.ACCESS_COARSE_LOCATION"
android:name="android.permission.ACCESS_FINE_LOCATION"
1.1其次最重要的是,申请权限,一直真机调试不成功,折磨死我啦,放在protected void onCreate方法就可以
if(ContextCompat.checkSelfPermission(EventsReportedActivity.this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED){//未开启定位权限
//开启定位权限,200是标识码
ActivityCompat.requestPermissions(EventsReportedActivity.this,new String[]{Manifest.permission.ACCESS_FINE_LOCATION},200);
}else{
initLocation();//初始化定位信息
Toast.makeText(EventsReportedActivity.this,"已开启定位权限", Toast.LENGTH_LONG).show();
}
1.2这边再回调一下
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode){
case 200://刚才的识别码
if(grantResults[0] == PackageManager.PERMISSION_GRANTED){//用户同意权限,执行我们的操作
initLocation();//开始定位
}else{//用户拒绝之后,当然我们也可以弹出一个窗口,直接跳转到系统设置页面
Toast.makeText(EventsReportedActivity.this,"未开启定位权限,请手动到设置去开启权限",Toast.LENGTH_LONG).show();
}
break;
default:break;
}
}
写到这里差不多就结束啦,
2.获取经纬度
2.1工具类
package com.skyinfor.szls.Util;
import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import androidx.core.app.ActivityCompat;
import java.util.List;
import static android.content.ContentValues.TAG;
public class LocationUtils {
private volatile static LocationUtils uniqueInstance;
private LocationManager locationManager;
private String locationProvider;
private Location location;
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
List<String> providers = locationManager.getProviders(true);
if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
//如果是网络定位
Log.d(TAG, "如果是网络定位");
locationProvider = LocationManager.NETWORK_PROVIDER;
} else if (providers.contains(LocationManager.GPS_PROVIDER)) {
//如果是GPS定位
Log.d(TAG, "如果是GPS定位");
locationProvider = LocationManager.GPS_PROVIDER;
} else {
Log.d(TAG, "没有可用的位置提供器");
return;
}
// 需要检查权限,否则编译报错,想抽取成方法都不行,还是会报错。只能这样重复 code 了。
if (Build.VERSION.SDK_INT >= 23 &&
ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
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) {
setLocation(location);
}
// 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.requestLocationUpdates(locationProvider, 0, 0, locationListener);
}
private void setLocation(Location location) {
this.location = location;
String address = "纬度:" + location.getLatitude() + "经度:" + location.getLongitude();
Log.d(TAG, address);
}
//获取经纬度
public Location showLocation() {
return location;
}
// 移除定位监听
public void removeLocationUpdatesListener() {
// 需要检查权限,否则编译不过
if (Build.VERSION.SDK_INT >= 23 &&
ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
if (locationManager != null) {
uniqueInstance = null;
locationManager.removeUpdates(locationListener);
}
}
/**
* LocationListern监听器
* 参数:地理位置提供器、监听位置变化的时间间隔、位置变化的距离间隔、LocationListener监听器
*/
LocationListener locationListener = new LocationListener() {
/**
* 当某个位置提供者的状态发生改变时
*/
@Override
public void onStatusChanged(String provider, int status, Bundle arg2) {
}
/**
* 某个设备打开时
*/
@Override
public void onProviderEnabled(String provider) {
}
/**
* 某个设备关闭时
*/
@Override
public void onProviderDisabled(String provider) {
}
/**
* 手机位置发生变动
*/
@Override
public void onLocationChanged(Location location) {
location.getAccuracy();//精确度
setLocation(location);
}
};
}
2.2调用
private void initLocation(){
Location location = LocationUtils.getInstance( EventsReportedActivity.this ).showLocation();
if (location != null) {
String address = "纬度:" + location.getLatitude() + "经度:" + location.getLongitude();
Log.d( "FLY.LocationUtils", address );
//text_location.setText( address );
text_location.setText( getAddress(location.getLongitude(),location.getLatitude()));
}
}
3.转为具体地址
3.1方法
public String getAddress(double lnt, double lat) {
Geocoder geocoder = new Geocoder(EventsReportedActivity.this);
boolean falg = geocoder.isPresent();
Log.e("the falg is " + falg,"the falg is ");
StringBuilder stringBuilder = new StringBuilder();
try {
//根据经纬度获取地理位置信息---这里会获取最近的几组地址信息,具体几组由最后一个参数决定
List<Address> addresses = geocoder.getFromLocation(lat, lnt, 1);
if (addresses.size() > 0) {
Address address = addresses.get(0);
for (int i = 0; i < address.getMaxAddressLineIndex(); i++) {
//每一组地址里面还会有许多地址。这里我取的前2个地址。xxx街道-xxx位置
if (i == 0) {
stringBuilder.append(address.getAddressLine(i)).append("-");
}
if (i == 1) {
stringBuilder.append(address.getAddressLine(i));
break;
}
}
//stringBuilder.append(address.getCountryName()).append("");//国家
stringBuilder.append(address.getAdminArea()).append("");//省份
stringBuilder.append(address.getLocality()).append("");//市
stringBuilder.append(address.getFeatureName()).append("");//周边地址
// stringBuilder.append(address.getCountryCode()).append("_");//国家编码
// stringBuilder.append(address.getThoroughfare()).append("_");//道路
Log.d("thistt", "地址信息--->" + stringBuilder);
}
} catch (Exception e) {
Log.d("获取经纬度地址异常","");
e.printStackTrace();
}
return stringBuilder.toString();
}
3.2调用
String Address = getAddress(location.getLongitude(),location.getLatitude());