问最新android不再发送UDP广播数据包

EN

    chrome.system.network.getNetworkInterfaces(function (networkIfaceArray) {
         for (var i = 0; i < networkIfaceArray.length; i++) {
                var iface = networkIfaceArray[i];
                if (iface.prefixLength < 32) {
                    addr_array = parseIP(iface.address);
                    mask = 32 - iface.prefixLength;
                    mask = Math.pow(2, mask) - 1;
                    pointer = 3;
                    while (mask > 255) {
                        addr_array[pointer++] = 255;
                        mask -= 255;
                    }
                    addr_array[pointer] = mask;
                    udp_sock.send(app.socketId, message,
                    addr_array.join("."), 5000, function (sendInfo) {
                        //check for response
                });
            }
        }
    });