Only register one ProxyReceiver

        }

    }

    private static void setupProxyListener(Context context) {

    /*

     * A variable to track if there is a receiver added for PROXY_CHANGE_ACTION

     */

    private static boolean sProxyReceiverAdded;

    private static synchronized void setupProxyListener(Context context) {

        if (sProxyReceiverAdded) {

            return;

        }

        IntentFilter filter = new IntentFilter();

        filter.addAction(Proxy.PROXY_CHANGE_ACTION);

        Intent currentProxy = context.getApplicationContext().registerReceiver(new ProxyReceiver(), filter);

        Intent currentProxy = context.getApplicationContext().registerReceiver(

                new ProxyReceiver(), filter);

        sProxyReceiverAdded = true;

        if (currentProxy != null) {

            handleProxyBroadcast(currentProxy);

        }