How to import GPS location coordinates from Android device?

Question

Hello, I tried to get latitude and longitude coordinates from 'Google Nexus One' and I failed.

I used the LocationInfo struct, but I think there is something missing. I wrote an Update function attached to 'GUI Text' like this:

void Update() { float lat, lon;

 LocationInfo li = new LocationInfo();

 lat = li.latitude;
 lon = li.longitude;

 guiText.text="LAT= "+ lat +"\nLON= " + lon;

Always returns 0.

Any idea? Thanks in advance,

Joel

Answer 1

Answer by Joshua Falkner · May 31, 2011 at 11:31 PM

The answer to this is actually in the last place you'd expect. You have to first initialize the iPhoneSettings.StartLocationServiceUpdates() (Yes, I know you're on android. You have to use iPhoneSettings anyway) and then when the services is up and running update your loc variable with loc = iPhoneInput.lastLocation;

Read more about it here: http://unity3d.com/support/documentation/ScriptReference/iPhoneSettings.StartLocationServiceUpdates.html

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Answer 2

Answer by Maarten · Dec 05, 2010 at 08:42 PM

You are just creating an new LocationInfo object, which will always return 0. You should call a function to retrieve the values from your device.

I do not know which function you should call to retrieve them.

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jsr2k1 · Dec 05, 2010 at 08:48 PM 0

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And that function is from unity libraries or android sdk?

Anyone has tested GPS with Android?

Maarten · Dec 05, 2010 at 08:58 PM 0

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I think you have to use the functions in the Android SD$$anonymous$$, and using a Plugin for Unity to be able to use them.

For more information on plugins, please see the url below: http://unity3d.com/support/documentation/$$anonymous$$anual/Plugins.html#AndroidPlugins

Answer 3

Answer by MESSAOUDI · Jul 19, 2013 at 09:59 AM

Hello everyone, this is surely easy to arrange as a problem, which aims to use using methods use "location" for Unity 3D?

Thank you

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Answer 4

you have to add this :

void Start()

 {
     Input.location.Start();
 }

void update()

{

StartCoroutine(UpdateLocation()) ; }

IEnumerator UpdateLocation() { Input.location.Start();

     // Wait until service initializes
     int maxWait = 20;
     while (Input.location.status == LocationServiceStatus.Initializing && maxWait > 0)
     {
         yield return new WaitForSeconds(1);
         maxWait--;
     }

     // Service didn't initialize in 20 seconds
     if (maxWait < 1)
     {
         Text singleText = mytext1.GetComponentInChildren<Text>();
         singleText.text = "Timed out";

     }
     // Connection has failed
     if (Input.location.status == LocationServiceStatus.Failed)
     {
         Text singleText = mytext1.GetComponentInChildren<Text>();
         singleText.text = "Unable to determine device location";

     }
     else
     {
         float lat = Input.location.lastData.latitude;
         float lon = Input.location.lastData.longitude;

}}

How to import GPS location coordinates from Android device?

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