iOS使用HHealthKit读取修改健康步数

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1.首先打开HealthKit

2.导入HealthKit.framework，并且导入头文件

3.获取步数的写入和读取权限；

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
     // Override point for customization after application launch.
     [self isHealthDataAvailable];
     return YES;
 }

 #pragma mark - 获取健康权限
 - (void)isHealthDataAvailable{
     if ([HKHealthStore isHealthDataAvailable]) {
         HKHealthStore *healthStore = [[HKHealthStore alloc]init];
         NSSet *writeDataTypes = [self dataTypesToWrite];
         NSSet *readDataTypes = [self dataTypesToRead];
         [healthStore requestAuthorizationToShareTypes:writeDataTypes readTypes:readDataTypes completion:^(BOOL success, NSError *error) {
             if (!success) {
                 NSLog(@"你不允许包来访问这些读/写数据类型。error === %@", error);
                 return;
             }
         }];
     }
 }

 #pragma mark - 设置写入权限
 - (NSSet *)dataTypesToWrite {
     HKQuantityType *stepType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
     return [NSSet setWithObjects:stepType, nil nil];
 }

 #pragma mark - 设置读取权限
 - (NSSet *)dataTypesToRead {
     HKQuantityType *stepType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
     return [NSSet setWithObjects:stepType, nil nil];
 }

4.获取步数

 #pragma mark - 获取步数 刷新界面
 - (void)getStepsFromHealthKit{
     HKQuantityType *stepType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
     [self fetchSumOfSamplesTodayForType:stepType unit:[HKUnit countUnit] completion:^(double stepCount, NSError *error) {
         dispatch_async(dispatch_get_main_queue(), ^{
             NSLog(@"你的步数为：%.f",stepCount);
         });
     }];
 }

 #pragma mark - 读取HealthKit数据
 - (void)fetchSumOfSamplesTodayForType:(HKQuantityType *)quantityType unit:(HKUnit *)unit completion:(void (^)(double, NSError *))completionHandler {
     NSPredicate *predicate = [self predicateForSamplesToday];

     HKStatisticsQuery *query = [[HKStatisticsQuery alloc] initWithQuantityType:quantityType quantitySamplePredicate:predicate options:HKStatisticsOptionCumulativeSum completionHandler:^(HKStatisticsQuery *query, HKStatistics *result, NSError *error) {
         HKQuantity *sum = [result sumQuantity];
         if (completionHandler) {
             double value = [sum doubleValueForUnit:unit];
             completionHandler(value, error);
         }
     }];
     [self.healthStore executeQuery:query];
 }

 #pragma mark - NSPredicate数据模型
 - (NSPredicate *)predicateForSamplesToday {
     NSCalendar *calendar = [NSCalendar currentCalendar];
     NSDate *now = [NSDate date];
     NSDate *startDate = [calendar startOfDayForDate:now];
     NSDate *endDate = [calendar dateByAddingUnit:NSCalendarUnitDay value:1 toDate:startDate options:0];
     return [HKQuery predicateForSamplesWithStartDate:startDate endDate:endDate options:HKQueryOptionStrictStartDate];
 }

5.添加步数

 #pragma mark - 添加步数
 - (void)addstepWithStepNum:(double)stepNum {
     HKQuantitySample *stepCorrelationItem = [self stepCorrelationWithStepNum:stepNum];

     [self.healthStore saveObject:stepCorrelationItem withCompletion:^(BOOL success, NSError *error) {
         dispatch_async(dispatch_get_main_queue(), ^{
             if (success) {
                 [self.view endEditing:YES];
                 UIAlertView *doneAlertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"添加成功" delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil nil];
                 [doneAlertView show];
                 //刷新数据  重新获取步数
                 [self getStepsFromHealthKit];
             }else {
                 NSLog(@"The error was: %@.", error);
                 UIAlertView *doneAlertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"添加失败" delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil nil];
                 [doneAlertView show];
                 return ;
             }
         });
     }];
 }

 #pragma Mark - 获取HKQuantitySample数据模型
 - (HKQuantitySample *)stepCorrelationWithStepNum:(double)stepNum {
     NSDate *endDate = [NSDate date];
     NSDate *startDate = [NSDate dateWithTimeInterval:-300 sinceDate:endDate];

     HKQuantity *stepQuantityConsumed = [HKQuantity quantityWithUnit:[HKUnit countUnit] doubleValue:stepNum];
     HKQuantityType *stepConsumedType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];

     NSString *strName = [[UIDevice currentDevice] name];
     NSString *strModel = [[UIDevice currentDevice] model];
     NSString *strSysVersion = [[UIDevice currentDevice] systemVersion];
     NSString *localeIdentifier = [[NSLocale currentLocale] localeIdentifier];

     HKDevice *device = [[HKDevice alloc] initWithName:strName manufacturer:@"Apple" model:strModel hardwareVersion:strModel firmwareVersion:strModel softwareVersion:strSysVersion localIdentifier:localeIdentifier UDIDeviceIdentifier:localeIdentifier];

     HKQuantitySample *stepConsumedSample = [HKQuantitySample quantitySampleWithType:stepConsumedType quantity:stepQuantityConsumed startDate:startDate endDate:endDate device:device metadata:nil];

     return stepConsumedSample;
 }