Android判断是否为Wifi

//判断是否为wifiprivate boolean isWifi(Context mContext) {    ConnectivityManager connectivityManager = (ConnectivityManager) mContext            .getSystemService(Context.CONNECTIVITY_SERVICE);    NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();    if (activeNetInfo != null            && activeNetInfo.getType() == ConnectivityManager.TYPE_WIFI) {        return true;    }    return false;}