google maps works only on wifi?

I am making an android app in which I have used google maps. these maps are loading only in wifi connection and not in any other internet connection.

Can anyone tell me W开发者_如何学Gohy is this happening?

WIFI is not must for Google Map. Google Map used the Internet Connection whether you can access it from SIM Card GPRS.

Maybe a firewall is blocking 2g/3g network connections. Try disabling the firewall.

Having had the same problem, check if the Data Connection of your device is ON.