如何將我們在健康應用程序中輸入的身高和體重數據讀取到我們的定製應用程序

Question

如何讀取我們在健康應用程序中輸入到我們的定製應用程序的身高和體重數據值？

Answer 1

您可以對要在後臺讀取的數據類型啓用後臺通知。 例如下面是使重量數據能夠後臺傳送的方法。您可以在didFinishLaunchingWithOptions方法中調用此方法。

- （無效）{enableBackgroundDeliveryForQuantityType

HKQuantityType *weightType = [HKQuantityType quantityTypeForIdentifier: HKQuantityTypeIdentifierBodyMass]; 

[self.healthStore enableBackgroundDeliveryForType: weightType frequency: HKUpdateFrequencyImmediate withCompletion: ^(BOOL success, NSError *error) { 

    NSLog(@"***** Background notification called ................. %d", success); 
}]; 
HKObserverQuery *query = [[HKObserverQuery alloc] initWithSampleType: weightType predicate: nil updateHandler: ^(HKObserverQuery *query, HKObserverQueryCompletionHandler completionHandler, NSError *error) { 

    if(error) { 
     NSLog(@"Error.... %@", error.localizedDescription); 
     abort(); 
    } 
    NSLog(@"Weight data updated"); 

    [self yourCustomisedMethod: completionHandler]; 
}]; 

[self.healthStore executeQuery: query]; 

}

在成功的通知，您可以編寫自己的自定義方法，並調用它。

Answer 2

1.請求HealthKit授權：

- (void)checkHealthStoreAuthorization 
{ 
    if ([HKHealthStore isHealthDataAvailable]) { 
     NSSet *readDataTypes = [self dataTypesToRead]; 

     if (!self.healthStore) { 
      self.healthStore = [[HKHealthStore alloc] init]; 
     } 

     static NSInteger i = 0; 
     for (HKObjectType * quantityType in readDataTypes) { 
      if ([self.healthStore authorizationStatusForType:quantityType] == HKAuthorizationStatusNotDetermined) { 
       [self.healthStore requestAuthorizationToShareTypes:nil readTypes:readDataTypes completion:^(BOOL success, NSError *error) { 
        i++; 
        if (!success) { 
         if (error) { 
          NSLog(@"requestAuthorizationToShareTypes error: %@", error); 
         } 
         return; 
        } else { 
         if (i == [readDataTypes count]) { 
          static dispatch_once_t onceToken; 
          dispatch_once(&onceToken, ^{ 
           [self getHeight]; 
           [self getWeight]; 
          }); 
         } 
        } 
       }]; 
      } else { 
       if ([quantityType isEqual:[HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeight]]) { 
        [self getHeight]; 
       } else if ([quantityType isEqual:[HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyMass]]) { 
        [self getWeight]; 
       } 
      } 
     } 
    } 
} 

- (NSSet *)dataTypesToRead 
{ 
    HKQuantityType *height = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeight]; 
    HKQuantityType *weight = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyMass]; 
    return [NSSet setWithObjects:height, weight, nil]; 
} 

2.獲取身高和體重：

- (void)getHeight 
{ 
    NSDateComponents *interval = [[NSDateComponents alloc] init]; 
    interval.month = 1; 
    HKQuantityType *quantityType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeight]; 

    HKStatisticsCollectionQuery *query = 
    [[HKStatisticsCollectionQuery alloc] initWithQuantityType:quantityType 
             quantitySamplePredicate:nil 
                 options:HKStatisticsOptionDiscreteAverage 
                anchorDate:[NSDate date] 
              intervalComponents:interval]; 

    query.initialResultsHandler = ^(HKStatisticsCollectionQuery *query, HKStatisticsCollection *results, NSError *error) { 
     if (error) { 
      NSLog(@"An error occurred while retrieving body mass: %@", error); 
     } 

     [results enumerateStatisticsFromDate:[self startDate] 
             toDate:[NSDate date] 
            withBlock:^(HKStatistics *result, BOOL *stop) { 
             HKQuantity *quantity = result.averageQuantity; 

             const int month = 30 * 24 * 60 * 60; 
             static BOOL isLastMonthResult; 
             static double lastHeight; 

             if ([[NSDate date] timeIntervalSinceDate:result.startDate] < month) { 
              isLastMonthResult = YES; 
              if (!quantity && lastHeight > 0.0) { 
               NSLog(@"Height: %lf", lastHeight); 
              } 
             } 

             if (quantity) { 
              lastHeight = [quantity doubleValueForUnit:[HKUnit meterUnit]] * 100; 
              if (isLastMonthResult) { 
               NSLog(@"Height: %lf", lastHeight); 
              } 
             } 
            }]; 
    }; 

    [self.healthStore executeQuery:query]; 
} 

- (void)getWeight 
{ 
    NSDateComponents *interval = [[NSDateComponents alloc] init]; 
    interval.month = 1; 
    HKQuantityType *quantityType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyMass]; 

    HKStatisticsCollectionQuery *query = 
    [[HKStatisticsCollectionQuery alloc] initWithQuantityType:quantityType 
             quantitySamplePredicate:nil 
                 options:HKStatisticsOptionDiscreteAverage 
                anchorDate:[NSDate date] 
              intervalComponents:interval]; 

    query.initialResultsHandler = ^(HKStatisticsCollectionQuery *query, HKStatisticsCollection *results, NSError *error) { 
     if (error) { 
      NSLog(@"An error occurred while retrieving body mass: %@", error); 
     } 

     [results enumerateStatisticsFromDate:[self startDate] 
             toDate:[NSDate date] 
            withBlock:^(HKStatistics *result, BOOL *stop) { 
             HKQuantity *quantity = result.averageQuantity; 

             const int month = 30 * 24 * 60 * 60; 
             static BOOL isLastMonthResult; 
             static double lastWeight; 

             if ([[NSDate date] timeIntervalSinceDate:result.startDate] < month) { 
              isLastMonthResult = YES; 
              if (!quantity && lastWeight > 0.0) { 
               NSLog(@"Weight: %lf", lastWeight); 
              } 
             } 

             if (quantity) { 
              lastWeight = [quantity doubleValueForUnit:[HKUnit gramUnit]]/1000; 
              if (isLastMonthResult) { 
               NSLog(@"Weight: %lf", lastWeight); 
              } 
             } 
            }]; 
    }; 

    [self.healthStore executeQuery:query]; 
} 

- (NSDate *)startDate 
{ 
    NSCalendar *calendar = [NSCalendar currentCalendar]; 
    NSDateComponents *components = [calendar components:NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear fromDate:[NSDate date]]; 
    components.hour = 0; 
    components.year -= 1; 
    NSDate *startDate = [calendar dateFromComponents:components]; 
    return startDate; 
}