1. 请求权限
- (void)requestHealthKitPermissionWithCompletion:(void (^)(BOOL success, NSError *error))completion {
if ([[[UIDevice currentDevice] systemVersion] doubleValue] >= 8.0) {
if (![HKHealthStore isHealthDataAvailable]) {
completion(NO, [NSError new]);
} else {
[self.healthStore requestAuthorizationToShareTypes:nil
readTypes:[NSSet setWithArray:@[[HKSampleType categoryTypeForIdentifier:HKCategoryTypeIdentifierSleepAnalysis],
[HKSampleType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyMass],
[HKSampleType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount],
[HKSampleType workoutType],
[HKSampleType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeartRate],
[HKSampleType quantityTypeForIdentifier:HKQuantityTypeIdentifierDietaryEnergyConsumed]]]
completion:^(BOOL success, NSError * _Nullable error) {
dispatch_async(dispatch_get_main_queue(), ^{
completion(success, error);
});
}];
}
} else {
completion(NO, [NSError new]);
}
}
2. 请求步数
- (void)requestStepCountWithStartTime:(NSDate *)startTime endTime:(NSDate *)endTime completion:(void(^)(double stepCount, NSError *error))completion {
[self requestHealthKitPermissionWithCompletion:^(BOOL success, NSError *error) {
if (success) {
HKQuantityType *type = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
NSSortDescriptor *start = [NSSortDescriptor sortDescriptorWithKey:HKSampleSortIdentifierStartDate ascending:NO];
NSSortDescriptor *end = [NSSortDescriptor sortDescriptorWithKey:HKSampleSortIdentifierEndDate ascending:NO];
NSPredicate *predicate = [HKQuery predicateForSamplesWithStartDate:startTime endDate:endTime options:HKQueryOptionNone];
HKSampleQuery *sampleQuery = [[HKSampleQuery alloc]initWithSampleType:type
predicate:predicate
limit:0
sortDescriptors:@[start,end]
resultsHandler:^(HKSampleQuery * _Nonnull query, NSArray<__kindof HKSample *> * _Nullable results, NSError * _Nullable error) {
if (error && completion) {
completion(0, error);
return;
}
double allStepCount = 0;
for (HKQuantitySample *result in results) {
double step = [result.quantity doubleValueForUnit:[HKUnit countUnit]];
allStepCount += step;
}
if (completion) {
completion(allStepCount, nil);
}
}];
[self.healthStore executeQuery:sampleQuery];
}
}];
}
