Getting the current location for Google Maps

Question

Possible Duplicate:
What is the simplest and most robust way to get the user’s current location in Android?

I have the following code that opens up Google Maps on the phone and passes the longitude + latitude of the destination and start location to it. I was wondering though if there was a way so that instead of having to manually enter a starting location into the code, if we could instead somehow get the code to automatically find out where the user is?

add.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View arg0) {
        // TODO Auto-generated method stub
        Intent intent = new Intent (android.content.Intent.ACTION_VIEW,
            Uri.parse("http://maps.google.com/maps?saddr=" + 51.5171 +
                      "," + 0.1062 + "&daddr=" + 52.6342 + "," + 1.1385));

        intent.setComponent(
            new ComponentName ("com.google.android.apps.maps",
                               "com.google.android.maps.MapsActivity"));

        startActivity(intent);
    }
});

Tamás Cseh · Answer 1 · 2013-01-08T21:04:55.987

2

You can use this method:

public LatLng getLocation(Context ctx) 
{
    LocationManager lm = (LocationManager) ctx.getSystemService(Context.LOCATION_SERVICE);
    List<String> providers = lm.getProviders(true);

    /*
     * Loop over the array backwards, and if you get an accurate location,
     * then break out the loop
     */
    Location l = null;

    for (int i = providers.size() - 1; i >= 0; i--) 
    {
        l = lm.getLastKnownLocation(providers.get(i));
        if (l != null)
            break;
    }
    return new LatLng(l.getLatitude(),l.getLongitude());
}

edited Jan 08 '13 at 21:04

answered Jan 08 '13 at 20:57

Tamás Cseh

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I used it in my project, but I don't know where I found it – Tamás Cseh Jan 08 '13 at 21:00
This might help with my SO Question - http://stackoverflow.com/questions/14202062/android-gps-coordinates-scattered but what determines the level of accuracy in your code? – eWizardII Jan 08 '13 at 21:04
If there is GPS information, it will use that, if not, itt will get info from network. – Tamás Cseh Jan 08 '13 at 21:09

score 0 · Answer 2 · edited May 23 '17 at 12:12

Refer to this question: What is the simplest and most robust way to get the user's current location on Android?

Basically once you acquire your Location, you can use getLatitude(), getLongitude() and drop those into your url.

I would recommend something more robust than getLastKnownLocation as it relies on the last known location, which may not have been updated in hours or possibly even days. If you're on vacation for instance, this could be on the wrong side of the planet.

Also view http://developer.android.com/guide/topics/location/strategies.html for more details.

score -1 · Answer 3 · answered Jan 08 '13 at 21:20

-1

Step by step guide for your question:

http://www.androidcompetencycenter.com/?s=GPS

Hope this helps

answered Jan 08 '13 at 21:20

Ramesh Sangili

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Getting the current location for Google Maps

3 Answers3