checkValue method
Implementation
String? checkValue(String? serialNumber) {
final value = serialNumber;
if (serialNumber == null) {
return null;
}
if (isURL(value!)) {
final uri = Uri.parse(value);
final imsi = uri.queryParameters['IMSI'];
serialNumber = imsi ?? '0';
ConditionalLogs().customLog("serial number from url is $serialNumber");
}
return serialNumber;
}