CLBeaconIdentityConstraint
Identity characteristics that can match one or more beacons.
Declaration
class CLBeaconIdentityConstraintOverview
A constraint specifies beacon identity characteristics. Use constraints to check for matching beacons by comparing the beacon’s identity characteristics (uuid, major, and minor) to those in the constraint.
Constraints always specify a UUID value, but the major and minor values are optional. A beacon satisfies the constraint if all three identity characteristics of the beacon match the same characteristic of the constraint. Major and minor characteristics are wildcards if they have no value. A major or minor wildcard value matches any value in the beacon’s corresponding characteristic.