/**

     * 获取上网方式

     *

     * @param mContext

     * @return

     */

    public static String getNetType(Context mContext) {

        String netType = "";

        ConnectivityManager connectionManager = (ConnectivityManager) mContext

                .getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo info = connectionManager.getActiveNetworkInfo();

        if (null != info && info.isAvailable()) {

            netType = info.getTypeName();

        }

        return netType;

    }

    /**

     * 判断网络连接是否可用

     *

     * @param mContext

     * @return

     */

    public static boolean getNetIsVali(Context mContext) {

        if (mContext != null) {

            ConnectivityManager mConnectivityManager = (ConnectivityManager) mContext

                    .getSystemService(Context.CONNECTIVITY_SERVICE);

            NetworkInfo mNetworkInfo = mConnectivityManager

                    .getActiveNetworkInfo();

            if (mNetworkInfo != null) {

                return mNetworkInfo.isAvailable();

            }

        }

        return false;

    }

    /**

     * 获取运营商信息

     *

     * @param mContext

     * @return

     */

    public static String getNetExtraInfo(Context mContext) {

        String netExtraInfo = "";

        TelephonyManager mTm = (TelephonyManager) mContext

                .getSystemService(Context.TELEPHONY_SERVICE);

        if (mTm.getSimState() == TelephonyManager.SIM_STATE_READY) {

            netExtraInfo = mTm.getSimOperator();

            if (null != netExtraInfo) {

                if (netExtraInfo.equals("46000")

                        || netExtraInfo.equals("46002")

                        || netExtraInfo.equals("46007")) {

                    // 中国移动

                    netExtraInfo = "中国移动";

                } else if (netExtraInfo.equals("46001")) {

                    // 中国联通

                    netExtraInfo = "中国联通";

                } else if (netExtraInfo.equals("46003")) {

                    // 中国电信

                    netExtraInfo = "中国电信";

                } else {

                    netExtraInfo = "其他";

                }

            }

        }

        return netExtraInfo;

    }