map.setmylocationenabled(true) not working

问题

I'm working with Google Maps in my android app. I need to recenter the map to the client's current location. I used the following statement -

map.setmylocationenabled(true);

This displays a button on the top right but clicking that doesn't work.

The button click listener:

mMap.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
                @Override
                public boolean onMyLocationButtonClick() {
                    mMap.addMarker(new MarkerOptions().position(myLatLng).title("My Location"));
                    mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(myLatLng, zoomLevel));
                    return false;
                }
            });

回答1:

Just take the code from my other answer here, and modify your button click listener to request another location:

         mMap.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
                @Override
                public boolean onMyLocationButtonClick() {
                     if (mGoogleApiClient != null) {
                         LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
                     }
                     return false;
                }
            });

The code in onLocationChanged() will then re-center the camera position, and then un-register for location updates again:

@Override
public void onLocationChanged(Location location)
{
    mLastLocation = location;
    if (mCurrLocationMarker != null) {
        mCurrLocationMarker.remove();
    }

    //Place current location marker
    LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
    MarkerOptions markerOptions = new MarkerOptions();
    markerOptions.position(latLng);
    markerOptions.title("Current Position");
    markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
    mCurrLocationMarker = mGoogleMap.addMarker(markerOptions);

    //move map camera
    mGoogleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
    mGoogleMap.animateCamera(CameraUpdateFactory.zoomTo(11));

    if (mGoogleApiClient != null) {
        LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
    }
}

回答2:

The last line was a solution for me:

myMap.setMyLocationEnabled(true);
myMap.getUiSettings().setMyLocationButtonEnabled(true);

回答3:

Have you tried to get your latitude and longitude, after using setmylocationenabled(true)?

example

gMap.setMyLocationEnabled(true);
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
gMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));

you can now use your latitude and longitude, and animate the camera to the lat/lng location that you get.Hope it helps.

回答4:

You should add setMyLocationEnabled (boolean enabled) .

Enables or disables the my-location layer.

While enabled and the location is available, the my-location layer continuously draws an indication of a user's current location and bearing, and displays UI controls that allow a user to interact with their location (for example, to enable or disable camera tracking of their location and bearing).

In order to use the my-location-layer feature you need to request permission for either ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION unless you have set a custom location source.

DEMO

You should add this in onMapReady (GoogleMap googleMap) section.

 @Override
        public void onMapReady(GoogleMap googleMap) {

            googleMapOBJ = googleMap;
            if (ActivityCompat.checkSelfPermission(activity, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(activity, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                // TODO: Consider calling
                //    ActivityCompat#requestPermissions
                // here to request the missing permissions, and then overriding
                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                //                                          int[] grantResults)
                // to handle the case where the user grants the permission. See the documentation
                // for ActivityCompat#requestPermissions for more details.
                return;
            }
            googleMapOBJ.setMyLocationEnabled(true);
            googleMapOBJ.getUiSettings().setMyLocationButtonEnabled(true);

回答5:

Kotlin way

mMap = googleMap
mMap.isMyLocationEnabled = true
mMap.uiSettings.isMyLocationButtonEnabled = true

来源：https://stackoverflow.com/questions/34608517/map-setmylocationenabledtrue-not-working