Android : how to programatically determine whether the system has a 3G/4G radio?

Question

I am programming a Nexus 7 and need to determine whether the system has a 3G/4G radio or not. How do I do that?

A modem? Why would it have a modem? Do you mean a wifi radio, or a 3G/4G radio? — Gabe Sechan, Jun 21 '14 at 17:11
Yes I do mean 3G/4G radios. Such radios are also called radio modems where I work. — user43995, Jun 21 '14 at 18:30

score 2 · Accepted Answer · answered Jun 21 '14 at 18:36

2

Use TelephonyManager.getPhoneType (). Returned values are

PHONE_TYPE_NONE
PHONE_TYPE_GSM
PHONE_TYPE_CDMA
PHONE_TYPE_SIP

Checking if CDMA or GSM should work

answered Jun 21 '14 at 18:36

Gabe Sechan

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score 0 · Answer 2 · answered Jun 21 '14 at 18:36

You can probably just check for the presence of a mobile network type.

boolean hasRadio()
{
     ConnectivityManager connManager = (ConnectivityManager) getActivity().getSystemService(Activity.CONNECTIVITY_SERVICE);

     return (connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE) != null);
}

Android : how to programatically determine whether the system has a 3G/4G radio?

2 Answers2