如何在 android 中获取当前的位置经纬度

在我的应用程序中，当应用程序打开时，我会得到当前位置的经纬度，但在应用程序关闭时则不会。

我正在使用服务类来获取应用程序中的当前位置经纬度。

请告诉我如何获得当前位置的经纬度，即使申请已经关闭

310561 次浏览
小开
最佳答案

几个月前，我创建了 GPS 跟踪器库，帮助我获得 GPS 定位。如果您需要查看 GPSTracker > getLocation

演示

Xml 

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

活动

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.TextView;


public class MainActivity extends Activity {


TextView textview;


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.geo_locations);


// check if GPS enabled
GPSTracker gpsTracker = new GPSTracker(this);


if (gpsTracker.getIsGPSTrackingEnabled())
{
String stringLatitude = String.valueOf(gpsTracker.latitude);
textview = (TextView)findViewById(R.id.fieldLatitude);
textview.setText(stringLatitude);


String stringLongitude = String.valueOf(gpsTracker.longitude);
textview = (TextView)findViewById(R.id.fieldLongitude);
textview.setText(stringLongitude);


String country = gpsTracker.getCountryName(this);
textview = (TextView)findViewById(R.id.fieldCountry);
textview.setText(country);


String city = gpsTracker.getLocality(this);
textview = (TextView)findViewById(R.id.fieldCity);
textview.setText(city);


String postalCode = gpsTracker.getPostalCode(this);
textview = (TextView)findViewById(R.id.fieldPostalCode);
textview.setText(postalCode);


String addressLine = gpsTracker.getAddressLine(this);
textview = (TextView)findViewById(R.id.fieldAddressLine);
textview.setText(addressLine);
}
else
{
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gpsTracker.showSettingsAlert();
}
}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.varna_lab_geo_locations, menu);
return true;
}
}

GPS 追踪器

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


import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
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.os.IBinder;
import android.provider.Settings;
import android.util.Log;


/**
* Create this Class from tutorial :
* http://www.androidhive.info/2012/07/android-gps-location-manager-tutorial
*
* For Geocoder read this : http://stackoverflow.com/questions/472313/android-reverse-geocoding-getfromlocation
*
*/


public class GPSTracker extends Service implements LocationListener {


// Get Class Name
private static String TAG = GPSTracker.class.getName();


private final Context mContext;


// flag for GPS Status
boolean isGPSEnabled = false;


// flag for network status
boolean isNetworkEnabled = false;


// flag for GPS Tracking is enabled
boolean isGPSTrackingEnabled = false;


Location location;
double latitude;
double longitude;


// How many Geocoder should return our GPSTracker
int geocoderMaxResults = 1;


// The minimum distance to change updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters


// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute


// Declaring a Location Manager
protected LocationManager locationManager;


// Store LocationManager.GPS_PROVIDER or LocationManager.NETWORK_PROVIDER information
private String provider_info;


public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}


/**
* Try to get my current location by GPS or Network Provider
*/
public void getLocation() {


try {
locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);


//getting GPS status
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);


//getting network status
isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);


// Try to get location if you GPS Service is enabled
if (isGPSEnabled) {
this.isGPSTrackingEnabled = true;


Log.d(TAG, "Application use GPS Service");


/*
* This provider determines location using
* satellites. Depending on conditions, this provider may take a while to return
* a location fix.
*/


provider_info = LocationManager.GPS_PROVIDER;


} else if (isNetworkEnabled) { // Try to get location if you Network Service is enabled
this.isGPSTrackingEnabled = true;


Log.d(TAG, "Application use Network State to get GPS coordinates");


/*
* This provider determines location based on
* availability of cell tower and WiFi access points. Results are retrieved
* by means of a network lookup.
*/
provider_info = LocationManager.NETWORK_PROVIDER;


}


// Application can use GPS or Network Provider
if (!provider_info.isEmpty()) {
locationManager.requestLocationUpdates(
provider_info,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES,
this
);


if (locationManager != null) {
location = locationManager.getLastKnownLocation(provider_info);
updateGPSCoordinates();
}
}
}
catch (Exception e)
{
//e.printStackTrace();
Log.e(TAG, "Impossible to connect to LocationManager", e);
}
}


/**
* Update GPSTracker latitude and longitude
*/
public void updateGPSCoordinates() {
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}


/**
* GPSTracker latitude getter and setter
* @return latitude
*/
public double getLatitude() {
if (location != null) {
latitude = location.getLatitude();
}


return latitude;
}


/**
* GPSTracker longitude getter and setter
* @return
*/
public double getLongitude() {
if (location != null) {
longitude = location.getLongitude();
}


return longitude;
}


/**
* GPSTracker isGPSTrackingEnabled getter.
* Check GPS/wifi is enabled
*/
public boolean getIsGPSTrackingEnabled() {


return this.isGPSTrackingEnabled;
}


/**
* Stop using GPS listener
* Calling this method will stop using GPS in your app
*/
public void stopUsingGPS() {
if (locationManager != null) {
locationManager.removeUpdates(GPSTracker.this);
}
}


/**
* Function to show settings alert dialog
*/
public void showSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);


//Setting Dialog Title
alertDialog.setTitle(R.string.GPSAlertDialogTitle);


//Setting Dialog Message
alertDialog.setMessage(R.string.GPSAlertDialogMessage);


//On Pressing Setting button
alertDialog.setPositiveButton(R.string.action_settings, new DialogInterface.OnClickListener() {


@Override
public void onClick(DialogInterface dialog, int which)
{
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});


//On pressing cancel button
alertDialog.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {


@Override
public void onClick(DialogInterface dialog, int which)
{
dialog.cancel();
}
});


alertDialog.show();
}


/**
* Get list of address by latitude and longitude
* @return null or List<Address>
*/
public List<Address> getGeocoderAddress(Context context) {
if (location != null) {


Geocoder geocoder = new Geocoder(context, Locale.ENGLISH);


try {
/**
* Geocoder.getFromLocation - Returns an array of Addresses
* that are known to describe the area immediately surrounding the given latitude and longitude.
*/
List<Address> addresses = geocoder.getFromLocation(latitude, longitude, this.geocoderMaxResults);


return addresses;
} catch (IOException e) {
//e.printStackTrace();
Log.e(TAG, "Impossible to connect to Geocoder", e);
}
}


return null;
}


/**
* Try to get AddressLine
* @return null or addressLine
*/
public String getAddressLine(Context context) {
List<Address> addresses = getGeocoderAddress(context);


if (addresses != null && addresses.size() > 0) {
Address address = addresses.get(0);
String addressLine = address.getAddressLine(0);


return addressLine;
} else {
return null;
}
}


/**
* Try to get Locality
* @return null or locality
*/
public String getLocality(Context context) {
List<Address> addresses = getGeocoderAddress(context);


if (addresses != null && addresses.size() > 0) {
Address address = addresses.get(0);
String locality = address.getLocality();


return locality;
}
else {
return null;
}
}


/**
* Try to get Postal Code
* @return null or postalCode
*/
public String getPostalCode(Context context) {
List<Address> addresses = getGeocoderAddress(context);


if (addresses != null && addresses.size() > 0) {
Address address = addresses.get(0);
String postalCode = address.getPostalCode();


return postalCode;
} else {
return null;
}
}


/**
* Try to get CountryName
* @return null or postalCode
*/
public String getCountryName(Context context) {
List<Address> addresses = getGeocoderAddress(context);
if (addresses != null && addresses.size() > 0) {
Address address = addresses.get(0);
String countryName = address.getCountryName();


return countryName;
} else {
return null;
}
}


@Override
public void onLocationChanged(Location location) {
}


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


@Override
public void onProviderEnabled(String provider) {
}


@Override
public void onProviderDisabled(String provider) {
}


@Override
public IBinder onBind(Intent intent) {
return null;
}
}

注意

如果这个方法/答案不起作用，你需要使用官方的谷歌提供商: FusedLocationProviderApi .

文章: 获取最后已知位置

小开

可以使用以下类作为服务类在后台运行应用程序

import java.util.Timer;
import java.util.TimerTask;


import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.widget.Toast;


public class MyService extends Service {


private GPSTracker gpsTracker;
private Handler handler= new Handler();
private Timer timer = new Timer();
private Distance pastDistance = new Distance();
private Distance currentDistance = new Distance();
public static double DISTANCE;
boolean flag = true ;
private double totalDistance ;
@Override
@Deprecated
public void onStart(Intent intent, int startId) {


super.onStart(intent, startId);
gpsTracker = new GPSTracker(HomeFragment.HOMECONTEXT);
TimerTask timerTask = new TimerTask() {


@Override
public void run() {
handler.post(new Runnable() {


@Override
public void run() {
if(flag){
pastDistance.setLatitude(gpsTracker.getLocation().getLatitude());
pastDistance.setLongitude(gpsTracker.getLocation().getLongitude());
flag = false;
}else{
currentDistance.setLatitude(gpsTracker.getLocation().getLatitude());
currentDistance.setLongitude(gpsTracker.getLocation().getLongitude());
flag = comapre_LatitudeLongitude();
}
Toast.makeText(HomeFragment.HOMECONTEXT, "latitude:"+gpsTracker.getLocation().getLatitude(), 4000).show();


}
});




}
};


timer.schedule(timerTask,0, 5000);


}


private double distance(double lat1, double lon1, double lat2, double lon2) {
double theta = lon1 - lon2;
double dist = Math.sin(deg2rad(lat1)) * Math.sin(deg2rad(lat2)) + Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) * Math.cos(deg2rad(theta));
dist = Math.acos(dist);
dist = rad2deg(dist);
dist = dist * 60 * 1.1515;
return (dist);
}


private double deg2rad(double deg) {
return (deg * Math.PI / 180.0);
}
private double rad2deg(double rad) {
return (rad * 180.0 / Math.PI);
}




@Override
public IBinder onBind(Intent intent) {


return null;
}






@Override
public void onDestroy() {


super.onDestroy();
System.out.println("--------------------------------onDestroy -stop service ");
timer.cancel();
DISTANCE = totalDistance ;
}
public boolean comapre_LatitudeLongitude(){


if(pastDistance.getLatitude() == currentDistance.getLatitude() && pastDistance.getLongitude() == currentDistance.getLongitude()){
return false;
}else{


final double distance = distance(pastDistance.getLatitude(),pastDistance.getLongitude(),currentDistance.getLatitude(),currentDistance.getLongitude());
System.out.println("Distance in mile :"+distance);
handler.post(new Runnable() {


@Override
public void run() {
float kilometer=1.609344f;


totalDistance = totalDistance +  distance * kilometer;
DISTANCE = totalDistance;
//Toast.makeText(HomeFragment.HOMECONTEXT, "distance in km:"+DISTANCE, 4000).show();


}
});


return true;
}


}


}

添加彼此类以获取位置

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;


public class GPSTracker implements LocationListener {
private final Context mContext;
boolean isGPSEnabled = false;
boolean isNetworkEnabled = false;
boolean canGetLocation = false;
Location location = null;
double latitude;
double longitude;


private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute


protected LocationManager locationManager;
private Location m_Location;
public GPSTracker(Context context) {
this.mContext = context;
m_Location = getLocation();
System.out.println("location Latitude:"+m_Location.getLatitude());
System.out.println("location Longitude:"+m_Location.getLongitude());
System.out.println("getLocation():"+getLocation());
}


public Location getLocation() {
try {
locationManager = (LocationManager) mContext
.getSystemService(Context.LOCATION_SERVICE);


isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);


isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);


if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
}
else {
this.canGetLocation = true;
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}


} catch (Exception e) {
e.printStackTrace();
}


return location;
}


public void stopUsingGPS() {
if (locationManager != null) {
locationManager.removeUpdates(GPSTracker.this);
}
}


public double getLatitude() {
if (location != null) {
latitude = location.getLatitude();
}


return latitude;
}


public double getLongitude() {
if (location != null) {
longitude = location.getLongitude();
}


return longitude;
}


public boolean canGetLocation() {
return this.canGetLocation;
}


@Override
public void onLocationChanged(Location arg0) {
// TODO Auto-generated method stub


}


@Override
public void onProviderDisabled(String arg0) {
// TODO Auto-generated method stub


}


@Override
public void onProviderEnabled(String arg0) {
// TODO Auto-generated method stub


}


@Override
public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
// TODO Auto-generated method stub


}




}

//——————距离.java

 public class Distance  {
private double latitude ;
private double longitude;
public double getLatitude() {
return latitude;
}
public void setLatitude(double latitude) {
this.latitude = latitude;
}
public double getLongitude() {
return longitude;
}
public void setLongitude(double longitude) {
this.longitude = longitude;
}






}
小开

使用位置侦听器方法

@Override
public void onLocationChanged(Location loc) {
Double lat = loc.getLatitude();
Double lng = loc.getLongitude();
}
小开

重要提示:

请注意，这个解决方案是从2015年可能太老和不被推崇。

以上这些都不适合我，所以我做了一个教程，并为自己写了它，因为我失去了很多时间来实现这一点。希望这对某些人有所帮助:

如何使用谷歌播放服务 位置应用程式介面得到当前的经度和纬度

1)在你的 AndroidManifest.xml档案中加入 ACCESS_COARSE_LOCATION及 ACCESS_FINE_LOCATION:

    <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.appname" >


<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />


<application...

2)转到 app/build.gradlefile 并添加以下依赖项(确保使用最新的版本) :

    dependencies {
//IMPORTANT: make sure to use the newest version. 11.0.1 is old AF
compile 'com.google.android.gms:play-services-location:11.0.1
}

3)在你的活动中执行以下内容:

    import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.GoogleMap;


public class HomeActivity extends AppCompatActivity implements
ConnectionCallbacks,
OnConnectionFailedListener,
LocationListener {


//Define a request code to send to Google Play services
private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
private double currentLatitude;
private double currentLongitude;




@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);


mGoogleApiClient = new GoogleApiClient.Builder(this)
// The next two lines tell the new client that “this” current class will handle connection stuff
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
//fourth line adds the LocationServices API endpoint from GooglePlayServices
.addApi(LocationServices.API)
.build();


// Create the LocationRequest object
mLocationRequest = LocationRequest.create()
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
.setInterval(10 * 1000)        // 10 seconds, in milliseconds
.setFastestInterval(1 * 1000); // 1 second, in milliseconds


}


@Override
protected void onResume() {
super.onResume();
//Now lets connect to the API
mGoogleApiClient.connect();
}


@Override
protected void onPause() {
super.onPause();
Log.v(this.getClass().getSimpleName(), "onPause()");


//Disconnect from API onPause()
if (mGoogleApiClient.isConnected()) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
mGoogleApiClient.disconnect();
}




}


/**
* If connected get lat and long
*
*/
@Override
public void onConnected(Bundle bundle) {
Location location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);


if (location == null) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);


} else {
//If everything went fine lets get latitude and longitude
currentLatitude = location.getLatitude();
currentLongitude = location.getLongitude();


Toast.makeText(this, currentLatitude + " WORKS " + currentLongitude + "", Toast.LENGTH_LONG).show();
}
}




@Override
public void onConnectionSuspended(int i) {}


@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
/*
* Google Play services can resolve some errors it detects.
* If the error has a resolution, try sending an Intent to
* start a Google Play services activity that can resolve
* error.
*/
if (connectionResult.hasResolution()) {
try {
// Start an Activity that tries to resolve the error
connectionResult.startResolutionForResult(this, CONNECTION_FAILURE_RESOLUTION_REQUEST);
/*
* Thrown if Google Play services canceled the original
* PendingIntent
*/
} catch (IntentSender.SendIntentException e) {
// Log the error
e.printStackTrace();
}
} else {
/*
* If no resolution is available, display a dialog to the
* user with the error.
*/
Log.e("Error", "Location services connection failed with code " + connectionResult.getErrorCode());
}
}


/**
* If locationChanges change lat and long
*
*
* @param location
*/
@Override
public void onLocationChanged(Location location) {
currentLatitude = location.getLatitude();
currentLongitude = location.getLongitude();


Toast.makeText(this, currentLatitude + " WORKS " + currentLongitude + "", Toast.LENGTH_LONG).show();
}


}

如果你需要更多的信息，只要去:

Android 定位初学者指南

注意: 这在模拟器中似乎不起作用，但在设备上却能正常工作

小开

* * 该活动应该实现 LocationListener

在 onCreate ()中，编写以下代码 * * 

  Boolean network = haveNetworkConnection();
Log.e("network", "---------->" + network);
if (!network) {
Toast.makeText(getApplicationContext(), "Network is not available",
3000).show();


}


SupportMapFragment supportMapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.googleMap);
googleMap = supportMapFragment.getMap();
googleMap.setMyLocationEnabled(true);




LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 30000, 0, this);








if (!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)
&& !locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {






TextView title = new TextView(context);
title.setText("Location Services Not Active");
title.setBackgroundColor(Color.BLACK);
title.setPadding(10, 15, 15, 10);
title.setGravity(Gravity.CENTER);
title.setTextColor(Color.WHITE);
title.setTextSize(22);




AlertDialog.Builder builder = new AlertDialog.Builder(this);








builder.setCustomTitle(title);




// builder.setTitle("Location Services Not Active");
builder.setMessage("Please enable Location Services and GPS");


builder.setPositiveButton("Turn on",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface,
int i) {
// Show location settings when the user acknowledges
// the alert dialog
Intent intent = new Intent(
Settings.ACTION_LOCATION_SOURCE_SETTINGS);


startActivity(intent);
finish();
}
});


builder.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {


@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.cancel();
}
});


builder.show();


}


Criteria criteria = new Criteria();
String bestProvider = locationManager.getBestProvider(criteria, true);
Location location = locationManager.getLastKnownLocation(bestProvider);


if (location == null) {
Toast.makeText(getApplicationContext(), "GPS signal not found",
3000).show();
}
if (location != null) {
Log.e("locatin", "location--" + location);


Log.e("latitude at beginning",
"@@@@@@@@@@@@@@@" + location.getLatitude());
onLocationChanged(location);
}

写一个方法 haveNetworkConnection

private boolean haveNetworkConnection() {
boolean haveConnectedWifi = false;
boolean haveConnectedMobile = false;


ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo[] netInfo = cm.getAllNetworkInfo();
for (NetworkInfo ni : netInfo) {
if (ni.getTypeName().equalsIgnoreCase("WIFI"))
if (ni.isConnected())
haveConnectedWifi = true;
if (ni.getTypeName().equalsIgnoreCase("MOBILE"))
if (ni.isConnected())
haveConnectedMobile = true;
}
return haveConnectedWifi || haveConnectedMobile;
}






@Override
public void onLocationChanged(Location location) {




LatLng latLng = new LatLng(latitude, longitude);
googleMap.addMarker(new MarkerOptions()
.position(latLng)
.title("Current LOC")
.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_RED)));


googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
googleMap.animateCamera(CameraUpdateFactory.zoomTo(17));




}


@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}


@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}


@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
小开

试试这个，希望它能帮助你得到当前的位置，每次的位置变化。

public class MyClass implements LocationListener {
double currentLatitude, currentLongitude;


public void onLocationChanged(Location location) {
currentLatitude = location.getLatitude();
currentLongitude = location.getLongitude();
}
}
小开

这里是你可以使用的 Android 位置库 找到你当前的位置，而不使用谷歌帐户或订阅。

查找此链接并下载存储库

Https://github.com/mrmans0n/smart-location-lib

保重，好好享受..。

小开

对于这种多孔性，可以使用流动代码:

public class GetLocationActivity extends BaseActivity {
//for getting update of location
FusedLocationProviderClient fusedLocationClient;
//new callback result requesting in activity
ActivityResultLauncher<String[]> locationPermissionRequest =
registerForActivityResult(new ActivityResultContracts
.RequestMultiplePermissions(), result -> {
Boolean fineLocationGranted = result.get(
Manifest.permission.ACCESS_FINE_LOCATION);
Boolean coarseLocationGranted = result.get(
Manifest.permission.ACCESS_COARSE_LOCATION);
if (fineLocationGranted != null && fineLocationGranted) {
// Precise location access granted.
if (coarseLocationGranted != null && coarseLocationGranted) {
// Only approximate location access granted.
//chek is Gps is On or Off and ask from user to enable is
checkGPS();
}
} else {
// No location access granted.
//show toast for errors
}
}
);


private void checkGPS() {
//create call for checking gps sensor
LocationRequest locationRequest = LocationRequest.create();


LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder().addLocationRequest(locationRequest);


SettingsClient settingsClient = LocationServices.getSettingsClient(this);
Task<LocationSettingsResponse> task = settingsClient.checkLocationSettings(builder.build());


task.addOnSuccessListener(this, locationSettingsResponse -> {
Log.d("GPS_main", "OnSuccess");
// GPS is ON
});


task.addOnFailureListener(this, new OnFailureListener() {
@Override
public void onFailure(@NonNull final Exception e) {
Log.d("GPS_main", "GPS off");
          

// GPS off
if (e instanceof ResolvableApiException) {
ResolvableApiException resolvable = (ResolvableApiException) e;
try {
resolvable.startResolutionForResult(GetLocationActivity.this, 1);
} catch (IntentSender.SendIntentException e1) {
e1.printStackTrace();
}
}
}
});
}








@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
   

fusedLocationClient = LocationServices.getFusedLocationProviderClient(this);


//location button
findViewById(R.id.lastLocationFab).setOnClickListener(view -> getPermission());
   

}


private void getPermission() {
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
//call request
locationPermissionRequest.launch(new String[]{
Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION});


} else {
fusedLocationClient.requestLocationUpdates(LocationRequest.create()
.setInterval(36000).setFastestInterval(36000)
.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY)
.setMaxWaitTime(1000),
getLocationCallback(), Looper.myLooper());
getCurrentLocation();
}
}


private LocationCallback getLocationCallback() {
return new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
List<Location> locationList = locationResult.getLocations();
if (locationList.size() > 0) {
//The last location in the list is the newest
Location location = locationList.get(locationList.size() - 1);


            

//Place current location marker
              

}
}


        

};
}




public void getCurrentLocation() {
fusedLocationClient.getCurrentLocation(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY, new CancellationToken() {
@Override
public boolean isCancellationRequested() {
return false;
}


@NonNull
@Override
public CancellationToken onCanceledRequested(@NonNull OnTokenCanceledListener onTokenCanceledListener) {
return null;
}
}).addOnSuccessListener(this, location -> {
// Got last known location. In some rare situations this can be null.
if (location != null) {
LatLng myLoc = new LatLng(location.getLatitude(), location.getLongitude());
           

}
});


}

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