Create a marker at the current location of Maps with Fragment

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Create a marker at the current location of Maps with Fragment

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#1 by (2 votes)

0

Hello, I need to put a marker in my current position and show it in Google Maps, but as I'm using Fragment the setMyLocationEnabled method does not work, I already went behind the internet on several sites and I did not find the solution, so I decided to ask here, here's my code

package com.outlier.br.sos_carro.activity.OficinaActivity;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.MapsInitializer;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.outlier.br.sos_carro.R;
import com.outlier.br.sos_carro.model.Oficina;

/**
 * Created by daniel on 9/18/16.
 */
public class TabLocalizacaoFragments extends Fragment {

    MapView mMapView;
    private GoogleMap googleMap;
    Oficina oficina;



    public void setOficina(Oficina oficina) {
        this.oficina = oficina;
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.tab_oficina_localizacao, container, false);

        mMapView = (MapView) rootView.findViewById(R.id.mapview);
        mMapView.onCreate(savedInstanceState);

        mMapView.onResume(); // needed to get the map to display immediately

        try {
            MapsInitializer.initialize(getActivity().getApplicationContext());
        } catch (Exception e) {
            e.printStackTrace();
        }


        mMapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(GoogleMap mMap) {

                googleMap = mMap;
                // For dropping a marker at a point on the Map
                LatLng latLng = new LatLng(oficina.getLatitude(), oficina.getLongitude());
                MarkerOptions options = new MarkerOptions()
                        .position(latLng)
                        .title(oficina.getNome())
                        .snippet(oficina.getDescricao());
                /*
                carro = new MarkerOptions()
                        .position(latLng)
                        .title("Minha posiçao");*/
                googleMap.addMarker(options);

                // For zooming automatically to the location of the marker
                CameraPosition cameraPosition = new CameraPosition.Builder().target(latLng).zoom(15).build();
                googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));

            }
        });

        return rootView;
    }


}

Thanks in advance for your help

android google-maps google-maps-android-api-2 android-fragment

asked by anonymous 26.09.2016 / 17:40

1 answer

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score 2 · Answer 1

You can use setMyLocationEnabled() in method onMapReady() because there you have a reference to the map.

Do this:

mMapView.getMapAsync(new OnMapReadyCallback() {
    @Override
    public void onMapReady(GoogleMap mMap) {

        mMap.setMyLocationEnabled(true);

        //Apenas para fazer zoom - ver nota
        double lat;
        double long;
        Location location = mMap.getMyLocation();

        if (location != null) {
            lat = location.getLatitude();
            long = location.getLongitude();
        } 
        LatLng minhaLocalizacao = new LatLng(lat, long);
        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(minhaLocalizacao, 3));
    }
});

Note:

You will have to deal with runtime permissions if targetApi is 23 or higher.
The method getMyLocation () is considered obsolete, it is used here because the camera is intended to at those coordinates. documentation suggests that zoom should be done by the user , using the button at the top corner of the map.