Java获取网络终端连接网络类型

最近经常几个朋友在问我关于Java怎样做像QQ里的在线用户一样查看用户登陆所使用的网络方式，这里我把Java实现的方式给大家分享，如大家有更好的方式欢迎交流。

public static String getNetType(Context context) {
try {
ConnectivityManager connectMgr =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo info = connectMgr.getActiveNetworkInfo();
if (info == null) {
return "";
}
if (info.getType() == ConnectivityManager.TYPE_WIFI) {
return "WIFI";
} else if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
if (info.getSubtype() == TelephonyManager.NETWORK_TYPE_CDMA) {
return "CDMA";
} else if (info.getSubtype() == TelephonyManager.NETWORK_TYPE_EDGE) {
return "EDGE";
} else if (info.getSubtype() == TelephonyManager.NETWORK_TYPE_EVDO_0) {
return "EVDO0";
} else if (info.getSubtype() == TelephonyManager.NETWORK_TYPE_EVDO_A) {
return "EVDOA";
} else if (info.getSubtype() == TelephonyManager.NETWORK_TYPE_GPRS) {
return "GPRS";
}
/*
* else if(info.getSubtype() ==
* TelephonyManager.NETWORK_TYPE_HSDPA){ return "HSDPA"; }else
* if(info.getSubtype() == TelephonyManager.NETWORK_TYPE_HSPA){
* return "HSPA"; }else if(info.getSubtype() ==
* TelephonyManager.NETWORK_TYPE_HSUPA){ return "HSUPA"; }
*/
else if (info.getSubtype() == TelephonyManager.NETWORK_TYPE_UMTS) {
return "UMTS";
} else {
return "3G";
}
} else {
return "";
}
} catch (Exception e) {
return "";
}
}