ManufacturerDataFilterBuilder constructor

ManufacturerDataFilterBuilder({ int? companyIdentifier, Uint8List? dataPrefix, Uint8List? mask, })

Create a new manufacturer data filter.

companyIdentifier is a 16 bit identifier of the company that either made the device, or made the bluetooth chip that the device uses.

See the full list of company identifiers here.

dataPrefix is a uint8 (or byte) array of the first n bytes of the manufacturer data of the device. For example if you have the UUID D273346A-... then the prefix of D273 should match

mask is a uint8 (or byte) array of the bits that should be matched against. The manufacturer data will be bit wise and (&) as well as the dataPrefix to the same mask. These two will then be compared to be equal.

Implementation

ManufacturerDataFilterBuilder(
    {final int? companyIdentifier,
    final Uint8List? dataPrefix,
    final Uint8List? mask})
    : _companyIdentifier = companyIdentifier,
      _dataPrefix = dataPrefix,
      _mask = mask {
  if (companyIdentifier != null &&
      (companyIdentifier < 0 || companyIdentifier > 0xFFFF)) {
    throw ArgumentError(
        "The company identifier must fit in 16-bits, so greater than 0 and smaller than 0xFFFF (65535)",
        "companyIdentifier");
  }
  if (_companyIdentifier == null && _dataPrefix == null && _mask == null) {
    throw StateError(
        "companyIdentifier, dataPrefix, and mask have not been set. Set at least one of them");
  }
}