Get GPS location from the web browser

Question

I am developing a mobile based web-site, there I have integrated Google Maps, I need to fill the 'From' field of Google Maps dynamically.

Is it possible to get the GPS location from web browser and fill it up in the 'From' field of a Google Map dynamically?

Answer 1

Use this, and you will find all informations at http://www.w3schools.com/html/html5_geolocation.asp

<script>
var x = document.getElementById("demo");
function getLocation() {
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(showPosition);
    } else {
        x.innerHTML = "Geolocation is not supported by this browser.";
    }
}
function showPosition(position) {
    x.innerHTML = "Latitude: " + position.coords.latitude + 
    "<br>Longitude: " + position.coords.longitude; 
}
</script>

Answer 2

See the discussion How to get GPS coordinates in the browser

There you have the link to example application Where Am I? that works on mobile devices. I've tested it on my Android and it started GPS module to get current coordinates. You can analyze the source on the living example.

I've made QR code for quick access from mobile:

Answer 3

Observable

/*
  function geo_success(position) {
    do_something(position.coords.latitude, position.coords.longitude);
  }

  function geo_error() {
    alert("Sorry, no position available.");
  }

  var geo_options = {
    enableHighAccuracy: true,
    maximumAge        : 30000,
    timeout           : 27000
  };

  var wpid = navigator.geolocation.watchPosition(geo_success, geo_error, geo_options);
  */
  getLocation(): Observable<Position> {
    return Observable.create((observer) => {
      const watchID = navigator.geolocation.watchPosition((position: Position) => {
        observer.next(position);
      });
      return () => {
        navigator.geolocation.clearWatch(watchID);
      };
    });
  }

  ngOnDestroy() {
    this.sub.unsubscribe();
  }

Answer 4

Let's use the latest fat arrow functions:

navigator.geolocation.getCurrentPosition((loc) => {
  console.log('The location in lat lon format is: [', loc.coords.latitude, ',', loc.coords.longitude, ']');
})

Answer 5

There is the GeoLocation API, but browser support is rather thin on the ground at present. Most sites that care about such things use a GeoIP database (with the usual provisos about the inaccuracy of such a system). You could also look at third party services requiring user cooperation such as FireEagle.

Answer 6

If you use the Geolocation API, it would be as simple as using the following code.

navigator.geolocation.getCurrentPosition(function(location) {
  console.log(location.coords.latitude);
  console.log(location.coords.longitude);
  console.log(location.coords.accuracy);
});

You may also be able to use Google's Client Location API.

This issue has been discussed in Is it possible to detect a mobile browser's GPS location? and Get position data from mobile browser. You can find more information there.