purplewind
purplewind

Reputation: 361

How to get current location using google maps API in android?

I am new to google maps API so i am wondering how do I get google maps to detect my current location when it is first loaded. Currently it can only display a marker of a hardcoded location but I want it to be my current location.

This is my current hardcoded location code:

@Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap
    LatLng test = new LatLng(33.8675,151.2070);
    mMap.addMarker(new MarkerOptions().position(test).title("test"));
    mMap.moveCamera(CameraUpdateFactory.newLatLng(test));
}

Upvotes: 0

Views: 9572

Answers (3)

sagar roy
sagar roy

Reputation: 1

public void onMapReady(GoogleMap googleMap) {
    gMap = googleMap;


    if (!gMap.isMyLocationEnabled())
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, 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.
            ActivityCompat.requestPermissions(this,new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION}, 1);
            ActivityCompat.requestPermissions(this,new String[]{android.Manifest.permission.ACCESS_COARSE_LOCATION}, 1);
            ActivityCompat.requestPermissions(this,new String[]{android.Manifest.permission.INTERNET}, 1);


            Toast.makeText(this, "Grant", Toast.LENGTH_LONG).show();

            return;


    }else {
            Criteria criteria = new Criteria();
            LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
            String provider = locationManager.getBestProvider(criteria, false);
            Location location = locationManager.getLastKnownLocation(provider);
            float la = (float) location.getLatitude() ;
            float lo = (float) location.getLongitude();
            Toast.makeText(this, la+"______________"+lo, Toast.LENGTH_LONG).show();


            LatLng TutorialsPoint = new LatLng(la, lo);
            gMap.addMarker(new
                    MarkerOptions().position(TutorialsPoint).title("Tutorialspoint.com"));
            gMap.moveCamera(CameraUpdateFactory.newLatLng(TutorialsPoint));
        }

}

Upvotes: -1

abielita
abielita

Reputation: 13494

You can follow this tutorial. You need to use the LocationManager to get the best provider and use it to get the location.

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //show error dialog if GoolglePlayServices not available
        if (!isGooglePlayServicesAvailable()) {
            finish();
        }
        setContentView(R.layout.activity_my);
        SupportMapFragment supportMapFragment =
                (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.googleMap);
        googleMap = supportMapFragment.getMap();
        googleMap.setMyLocationEnabled(true);
        LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
        Criteria criteria = new Criteria();
        String bestProvider = locationManager.getBestProvider(criteria, true);
        Location location = locationManager.getLastKnownLocation(bestProvider);
        if (location != null) {
            onLocationChanged(location);
        }
        locationManager.requestLocationUpdates(bestProvider, 20000, 0, this);
    }

These services allow applications to obtain periodic updates of the device's geographical location, or to fire an application-specified Intent when the device enters the proximity of a given geographical location.

Check these related links:

Upvotes: 2

Eggy Sudianto
Eggy Sudianto

Reputation: 277

add this on onActivityResult

LatLng latLng = new LatLng(place.getLatLng().latitude,place.getLatLng().longitude);
googleMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
googleMap.animateCamera(CameraUpdateFactory.zoomTo(15));

and add this to onMapReady

googleMap.setOnMyLocationChangeListener(myLocationChangeListener);

and add 1 method

private OnMyLocationChangeListener myLocationChangeListener = new OnMyLocationChangeListener() {
        @Override
        public void onMyLocationChange(Location location) {
            if(awal) {
                awal=false;
                googleMap.moveCamera(CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(), location.getLongitude())));
                googleMap.animateCamera(CameraUpdateFactory.zoomTo(13));
            }
        }
    };

Upvotes: 0

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