# HKCategoryValuePredicateProviding A protocol for objects that produce predicates that match category value samples. ``` protocol HKCategoryValuePredicateProviding : Hashable, RawRepresentable ``` ## Topics ### Creating predicates [`static func predicateForSamples(NSComparisonPredicate.Operator, value: Self) -> NSPredicate`](/documentation/HealthKit/HKCategoryValuePredicateProviding/predicateForSamples(_:value:)) Returns a predicate that checks a category sample’s value. [`static func predicateForSamples(equalTo: Set) -> NSPredicate`](/documentation/HealthKit/HKCategoryValuePredicateProviding/predicateForSamples(equalTo:)) Returns a predicate that checks whether a category sample is equal to the provided set of values. ## Relationships ### Conforming Types [`HKCategoryValuePresence`](/documentation/HealthKit/HKCategoryValuePresence) [`HKCategoryValueAppleWalkingSteadinessEvent`](/documentation/HealthKit/HKCategoryValueAppleWalkingSteadinessEvent) [`HKCategoryValue`](/documentation/HealthKit/HKCategoryValue) [`HKCategoryValueHeadphoneAudioExposureEvent`](/documentation/HealthKit/HKCategoryValueHeadphoneAudioExposureEvent) [`HKCategoryValueCervicalMucusQuality`](/documentation/HealthKit/HKCategoryValueCervicalMucusQuality) [`HKCategoryValueVaginalBleeding`](/documentation/HealthKit/HKCategoryValueVaginalBleeding) [`HKCategoryValueProgesteroneTestResult`](/documentation/HealthKit/HKCategoryValueProgesteroneTestResult) [`HKCategoryValueMenstrualFlow`](/documentation/HealthKit/HKCategoryValueMenstrualFlow) [`HKCategoryValueSeverity`](/documentation/HealthKit/HKCategoryValueSeverity) [`HKCategoryValueAppleStandHour`](/documentation/HealthKit/HKCategoryValueAppleStandHour) [`HKCategoryValueMenopausalState`](/documentation/HealthKit/HKCategoryValueMenopausalState) [`HKCategoryValueSleepAnalysis`](/documentation/HealthKit/HKCategoryValueSleepAnalysis) [`HKCategoryValueEnvironmentalAudioExposureEvent`](/documentation/HealthKit/HKCategoryValueEnvironmentalAudioExposureEvent) [`HKCategoryValueLowCardioFitnessEvent`](/documentation/HealthKit/HKCategoryValueLowCardioFitnessEvent) [`HKCategoryValueOvulationTestResult`](/documentation/HealthKit/HKCategoryValueOvulationTestResult) [`HKCategoryValuePregnancyTestResult`](/documentation/HealthKit/HKCategoryValuePregnancyTestResult) [`HKCategoryValueContraceptive`](/documentation/HealthKit/HKCategoryValueContraceptive) [`HKCategoryValueAppetiteChanges`](/documentation/HealthKit/HKCategoryValueAppetiteChanges) ### Inherits From [`Hashable`](/documentation/Swift/Hashable) [`RawRepresentable`](/documentation/Swift/RawRepresentable) [`Equatable`](/documentation/Swift/Equatable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)