Show my current location in the Google Map

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-上瘾入骨i
-上瘾入骨i 2021-01-16 01:19

Finally I succeed to display the map,Now,I want to show my current location, I tried by using these code but it didn\'t work when I clicked the my location button in the to

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  • 2021-01-16 01:28

    Use this Code for Current Location:

    googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
    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.
        return;
    }
    googleMap.setMyLocationEnabled(true);
    googleMap.getUiSettings().setZoomControlsEnabled(false);
    googleMap.getUiSettings().setMyLocationButtonEnabled(true);
    googleMap.getUiSettings().setCompassEnabled(true);
    googleMap.getUiSettings().setRotateGesturesEnabled(true);
    googleMap.getUiSettings().setZoomGesturesEnabled(true);
    
    if (locationManager == null) {
        locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
    }
    if (locationManager.getAllProviders().contains(LocationManager.GPS_PROVIDER)) {
        isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
        isNetworkProviderEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
        if (isGPSEnabled) {
            location = getLastLocationByProvider(locationManager, LocationManager.GPS_PROVIDER, getApplicationContext());
        } else if (isNetworkProviderEnabled) {
            location = getLastLocationByProvider(locationManager, LocationManager.NETWORK_PROVIDER, getApplicationContext());
        }
        if (location != null) {
            latitude = location.getLatitude();
            longitude = location.getLongitude();
        } else {
            if (isNetworkProviderEnabled) {
                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 100000, 1, this);
                provider_info = LocationManager.NETWORK_PROVIDER;
            } else if (isGPSEnabled) {
                locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 100000, 1, this);
                provider_info = LocationManager.GPS_PROVIDER;
            } else {
    
                alertDialog = Util.showOkDialog(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        if (Env.currentActivity != null) {
                            if (Env.currentActivity instanceof LocationActivity) {
                                try {
                                    gotoSettings();
                                } catch (Exception e) {
                                    e.printStackTrace();
                                }
                            }
    
                        }
                        if (alertDialog != null) {
                            alertDialog.dismiss();
                            alertDialog = null;
                        }
    
                    }
                }, this.getResources().getString(R.string.location_service_validation));
    
            }
    
            location = locationManager.getLastKnownLocation(provider_info);
            if (location != null) {
                latitude = location.getLatitude();
                longitude = location.getLongitude();
            }
        }
    
        MarkerOptions marker = new MarkerOptions().position(
                new LatLng(latitude, longitude))
                .title(getFullAddressLine(this));
        marker.icon(BitmapDescriptorFactory
                .defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
    
        googleMap.addMarker(marker);
        CameraPosition cameraPosition = new CameraPosition.Builder()
                .target(new LatLng(latitude,
                        longitude)).zoom(15).build();
        googleMap.animateCamera(CameraUpdateFactory
                .newCameraPosition(cameraPosition));
    }
    
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  • 2021-01-16 01:40
    private GoogleApiClient mGoogleApiClient;
    private GoogleMap mMap;
    

    Implement this listeners:

    LocationListener, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener 
    

    onCreateView or onCreate method:

    if (mGoogleApiClient == null) {
        mGoogleApiClient = new GoogleApiClient.Builder(mActivity)
            .addApi(LocationServices.API).addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this).build();
        mGoogleApiClient.connect();
    }
    

    @Override Methods:

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        if (ContextCompat.checkSelfPermission(mActivity, android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(mActivity, android.Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
            if (mLastLocation != null)
                onLocationChanged(mLastLocation);
            return;
        }
    }
    
    @Override
    public void onLocationChanged(Location location) {
        if (location != null) {
            mMap.moveCamera(CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(),location.getLongitude())));
            mMap.animateCamera(CameraUpdateFactory.zoomTo(6), 5000, null);
        }
    }
    

    Hope your task done.

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  • 2021-01-16 01:45
    public void showMap() {
    
        mapFragment = (SupportMapFragment)getChildFragmentManager().findFragmentById(R.id.map);
        if (map == null) {
            map = mapFragment.getMap();
        }
    
    
        // Enable Zoom
        map.getUiSettings().setZoomGesturesEnabled(true);
    
        //set Map TYPE
        map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
    
        //enable Current location Button
        map.setMyLocationEnabled(true);
    
        LocationManager locationManager = (LocationManager)getActivity().getSystemService(getActivity().LOCATION_SERVICE);
        Criteria criteria = new Criteria();
        String bestProvider = locationManager.getBestProvider(criteria, true);
        if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(), 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;
        }
        Location location = locationManager.getLastKnownLocation(bestProvider);
        if (location != null) {
            onLocationChanged(location);
        }
        locationManager.requestLocationUpdates(bestProvider, 2000, 0, this);
    }
    
    @Override
    public void onLocationChanged(Location location) {
    
        latitude= location.getLatitude();
        longitude=location.getLongitude();
    
        LatLng loc = new LatLng(latitude, longitude);
    
         if (marker!=null){
             marker.remove();
         }
    
        marker=  map.addMarker(new MarkerOptions().position(loc).title("Sparx IT Solutions"));
        map.moveCamera(CameraUpdateFactory.newLatLng(loc));
        map.animateCamera(CameraUpdateFactory.newLatLngZoom(loc, 16.0f));
    
    }
    
    @Override
    public void onProviderDisabled(String provider) {
    
        Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
        startActivity(intent);
        Toast.makeText(getActivity().getBaseContext(), "Gps is turned off!!",
                Toast.LENGTH_SHORT).show();
    }
    
    @Override
    public void onProviderEnabled(String provider) {
    
        Toast.makeText(getActivity().getBaseContext(), "Gps is turned on!! ",
                Toast.LENGTH_SHORT).show();
    }
    
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  • 2021-01-16 01:47

    Read the following documentation- https://developers.google.com/maps/documentation/android-api/location#the_my_location_layer

    Possible duplicate of - how to get current location in google map android

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  • 2021-01-16 01:50

    Use following code:

    //Zoom to the current location
    public Location getMyLocation() {
        LocationManager locationManager = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
        Criteria criteria = new Criteria();
    
        Location location = locationManager.getLastKnownLocation(locationManager.getBestProvider(criteria, false));
        if (location != null) {
            map.animateCamera(CameraUpdateFactory.newLatLngZoom(
                    new LatLng(location.getLatitude(), location.getLongitude()), 13));
    
            CameraPosition cameraPosition = new CameraPosition.Builder()
                    .target(new LatLng(location.getLatitude(), location.getLongitude()))      // Sets the center of the map to location user
                    .zoom(17)                   // Sets the zoom
                    .bearing(90)                // Sets the orientation of the camera to east
                    .tilt(40)                   // Sets the tilt of the camera to 30 degrees
                    .build();                   // Creates a CameraPosition from the builder
            map.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
    
        }
    
        return location;
    }
    

    Then call this method insode your onCreate

    Hope this helps :)

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