Android原生方式获取经纬度和城市信息

if (providers.contains(LocationManager.GPS_PROVIDER)) {

//如果是GPS

locationProvider = LocationManager.GPS_PROVIDER;

Log.v(“TAG”, “定位方式GPS”);

} else if (providers.contains(LocationManager.NETWORK_PROVIDER)) {

//如果是Network

locationProvider = LocationManager.NETWORK_PROVIDER;

Log.v(“TAG”, “定位方式Network”);

}else {

Toast.makeText(this, “没有可用的位置提供器”, Toast.LENGTH_SHORT).show();

return;

}

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

//获取权限（如果没有开启权限，会弹出对话框，询问是否开启权限）

if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)

!= PackageManager.PERMISSION_GRANTED ||

ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION)

!= PackageManager.PERMISSION_GRANTED) {

//请求权限

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION,

Manifest.permission.ACCESS_COARSE_LOCATION}, LOCATION_CODE);

} else {

//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){

Toast.makeText(this, location.getLongitude() + " " +

location.getLatitude() + “”,Toast.LENGTH_SHORT).show();

Log.v(“TAG”, “获取上次的位置-经纬度：”+location.getLongitude()+" "+location.getLatitude());

getAddress(location);

}else{

//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, 3000, 1,locationListener);

}

}

} else {

Location location = locationManager.getLastKnownLocation(locationProvider);

if (location!=null){

Toast.makeText(this, location.getLongitude() + " " +

location.getLatitude() + “”, Toast.LENGTH_SHORT).show();

Log.v(“TAG”, “获取上次的位置-经纬度：”+location.getLongitude()+" "+location.getLatitude());

getAddress(location);

}else{

//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, 3000, 1,locationListener);

}

}

}

public 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) {

//如果位置发生变化，重新显示地理位置经纬度

Toast.makeText(TestLocationActivity.this, location.getLongitude() + " " +

location.getLatitude() + “”, Toast.LENGTH_SHORT).show();

Log.v(“TAG”, “监视地理位置变化-经纬度：”+location.getLongitude()+" "+location.getLatitude());

}

}

};

@Override

public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

switch (requestCode) {

case LOCATION_CODE:

if(grantResults.length > 0 && grantResults[0] == getPackageManager().PERMISSION_GRANTED

&& grantResults[1] == PackageManager.PERMISSION_GRANTED) {

Toast.makeText(this, “申请权限”, Toast.LENGTH_LONG).show();

try {

List providers = locationManager.getProviders(true);

if (providers.contains(LocationManager.NETWORK_PROVIDER)) {

//如果是Network

locationProvider = LocationManager.NETWORK_PROVIDER;

}else if (providers.contains(LocationManager.GPS_PROVIDER)) {

//如果是GPS

locationProvider = LocationManager.GPS_PROVIDER;

}

Location location = locationManager.getLastKnownLocation(locationProvider);

if (location!=null){

Toast.makeText(this, location.getLongitude() + " " +

location.getLatitude() + “”, Toast.LENGTH_SHORT).show();

Log.v(“TAG”, “获取上次的位置-经纬度：”+location.getLongitude()+" "+location.getLatitude());

}else{

// 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);

}

}catch (SecurityException e){

e.printStackTrace();

}

} else {

Toast.makeText(this, “缺少权限”, Toast.LENGTH_LONG).show();

finish();

}

break;

}

}

//获取地址信息:城市、街道等信息

private List

getAddress(Location location) {

List

result = null;

try {

if (location != null) {

Geocoder gc = new Geocoder(this, Locale.getDefault());

result = gc.getFromLocation(location.getLatitude(),

location.getLongitude(), 1);

Toast.makeText(this, “获取地址信息：”+result.toString(), Toast.LENGTH_LONG).show();

Log.v(“TAG”, “获取地址信息：”+result.toString());

}

} catch (Exception e) {

e.printStackTrace();

}

return result;

}

@Override

protected void onDestroy() {

super.onDestroy();

locationManager.removeUpdates(locationListener);

}

}

在AndroidManifest.xml加权限

复制代码

三、总结

首先将手机定位服务设置，调到下图所示：

这可能会获取不到经纬度。为什么在网络和GPS都可用的情况下只执行GPS而不是网络？也许是从精确度考虑的，但是走GPS进入监听的listener后，不会执行onLocationChanged()方法，因为我是在室内，没有移动，所以如果你获取不到经纬度，就要将定位服务调到仅使用网络定位或者关闭手机GPS这样就可以获取到了。
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-3qLJ8Ng8-1595992608560)(https://upload-images.jianshu.io/upload_images/24146606-bddf410ed8b2de20.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)]