Issue
I am trying to get my current location in Android Studio by using the Google Maps API Key I got from Google Cloud platform. If I run the app on my phone, everything is OK. If I run the app on the emulator, my location appears to be Google Plex, as in the following image(which would be completely wrong): emulator app showing the wrong location
I am not sure if it's because of the API key or maybe a mistake in the code/persmission/GPS? I took the code from a tutorial, but now it seems that Google Client is now deprecated (not sure if this is the problem). I believe it is because of the emulator, but I don't know why.I am currently using Pixel 2 API 26.
I will show the code here:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="com.google.android.providers.gsf.permisson.READ_GSERVICES"/>
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="@string/google_maps_key" />
BUILD.GRADLE:
implementation 'com.google.android.gms:play-services-maps:17.0.1'
implementation 'com.google.android.gms:play-services-location:18.0.0'
MAPS ACTIVITY:
public class GoogleMapsActivity extends FragmentActivity implements OnMapReadyCallback,
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
LocationListener {
private GoogleMap mMap;
private GoogleApiClient googleClient;
private LocationRequest locationRequest;
private Location ultimateLocation;
private Marker markerCurrentLocation;
private static final int Request_User_Location_Code = 90;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_google_maps);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
{
checkLocationPermission();
}
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
assert mapFragment != null;
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(@NotNull GoogleMap googleMap) {
mMap = googleMap;
//current location
if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED){
createGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
}
protected synchronized void createGoogleApiClient() { // ok
googleClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
googleClient.connect();
}
@Override
public void onLocationChanged(@NonNull Location location) { // ok
ultimateLocation = location;
if (markerCurrentLocation !=null)
{
markerCurrentLocation.remove();;
}
LatLng coordinates = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(coordinates);
markerOptions.title("Current Location");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
markerCurrentLocation = mMap.addMarker(markerOptions);
mMap.moveCamera(CameraUpdateFactory.newLatLng(coordinates));
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude(), location.getLongitude()), 17.0f));
if(googleClient!=null)
{
LocationServices.FusedLocationApi.removeLocationUpdates(googleClient,this);
}
else
{
Toast.makeText(this, "NULLLLLLLL", Toast.LENGTH_SHORT).show();
}
}
@Override
public void onConnected(@Nullable Bundle bundle) { // ok
locationRequest = new LocationRequest();
locationRequest.setInterval(1100);
locationRequest.setFastestInterval(1100);
locationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
LocationServices.FusedLocationApi.requestLocationUpdates(googleClient, locationRequest, this);
}
}
public boolean checkLocationPermission(){ // ok
boolean ret;
if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED){
if(ActivityCompat.shouldShowRequestPermissionRationale(this,Manifest.permission.ACCESS_FINE_LOCATION))
{
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, Request_User_Location_Code);
}
else
{
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, Request_User_Location_Code);
}
ret = false;
}
else
{
ret = true;
}
return ret;
}
//ok
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
switch (requestCode)
{
case Request_User_Location_Code:
if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
{
if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)== PackageManager.PERMISSION_GRANTED)
{
if(googleClient==null)
{
createGoogleApiClient();;
}
mMap.setMyLocationEnabled(true);
}
}
else
{
Toast.makeText(this, " PERMISSION DENIED", Toast.LENGTH_SHORT).show();
}
return ;
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
}
Solution
Just go to the Emulator controls (Three dots menu) and in the Location
tab, pin any location in the map and click Set Location
.
Then verify if you received the location you were expecting in your app.
Answered By - Eddie Lopez
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