キャッチされていない例外 '_HKObjectValidationFailureException'のためにアプリケーションを終了する

Question

私は、iOSのHealth Kitアプリケーションに血糖値を保存しています。

-(void)viewDidLoad 
{ 

    float bloodGlucose=20; 
    float bloodGlucoseValue= (int) bloodGlucose; 
    NSLog(@"Blood Glucose value is :%f",bloodGlucoseValue); 
    HKQuantityType *bloodGlucoseType=[HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierBloodGlucose]; 

    NSSet *requesObjects=[[NSSet alloc]initWithObjects:bloodGlucoseType, nil]; 
    HKHealthStore * hStore = [HKHealthStore new]; 

    [hStore requestAuthorizationToShareTypes: requesObjects readTypes:requesObjects completion:^(BOOL success, NSError *error) { 

    //user response processing goes here, i.e. 

    if(success) {   
    dispatch_async(dispatch_get_main_queue(), ^{ 

    [[GSHealthKitManager sharedManager]saveBloodGlucosePercentageintoHealthStore:bloodGlucoseValue]; 

    }); 

    } 

    }]; 

} 

-(void)saveBloodGlucosePercentageintoHealthStore:(float)bloodGlucoseValue 
{ 

HKUnit *inches=[HKUnit gramUnit]; 
HKQuantity * glucoseQuantity = [HKQuantity quantityWithUnit:inches doubleValue:bloodGlucoseValue]; 

HKQuantityType *glucoseType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierBloodGlucose]; 
NSDate *now = [NSDate date]; 
HKQuantitySample *bloodGlucosesample = [HKQuantitySample quantitySampleWithType:glucoseType quantity:glucoseQuantity startDate:now endDate:now]; 

[self.healthStore saveObject:bloodGlucosesample withCompletion:^(BOOL success, NSError *error){ 

if (!success)   
{ 

NSLog(@"Error"); 

} 

}]; 

} 

私はアプリケーションを実行する場合、私はこのコード行では、次の例外が発生しました：

HKQuantitySample *bloodGlucosesample = [HKQuantitySample quantitySampleWithType:glucoseType quantity:glucoseQuantity startDate:now endDate:now]; 

はトレース：

Exception is: Terminating app due to uncaught exception '_HKObjectValidationFailureException', reason: 'HKQuantitySample 20 g 2016-04-07 15:39:44 +0530 2016-04-07 15:39:44 +0530 requires unit of type Mass/Volume. Incompatible unit: g' 
*** First throw call stack: 
(
    0 CoreFoundation      0x00b73a14 __exceptionPreprocess + 180 
    1 libobjc.A.dylib      0x00634e02 objc_exception_throw + 50 
    2 CoreFoundation      0x00b7393d +[NSException raise:format:] + 141 
    3 HealthKit       0x0010da70 -[HKObject _validateForCreation] + 149 
    4 HealthKit       0x0010d89e +[HKObject _newDataObjectWithMetadata:device:config:] + 273 
    5 HealthKit       0x0014e661 +[HKSample _newSampleWithType:startDate:endDate:device:metadata:config:] + 200 
    6 HealthKit       0x0013244f +[HKQuantitySample quantitySampleWithType:quantity:startDate:endDate:device:metadata:] + 324 
    7 HealthKit       0x0013265a +[HKQuantitySample quantitySampleWithType:quantity:startDate:endDate:] + 116 
    8 HealthKitProto      0x0005cda2 -[GSHealthKitManager saveBloodGlucosePercentageintoHealthStore:] + 274 
    9 HealthKitProto      0x0005f4c7 __34-[FirstViewController viewDidLoad]_block_invoke_9 + 103 
    10 libdispatch.dylib     0x0367a377 _dispatch_call_block_and_release + 15 
    11 libdispatch.dylib     0x0369d9cd _dispatch_client_callout + 14 
    12 libdispatch.dylib     0x03682f90 _dispatch_main_queue_callback_4CF + 910 
    13 CoreFoundation      0x00ac4fde __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 14 
    14 CoreFoundation      0x00a82cd4 __CFRunLoopRun + 2356 
    15 CoreFoundation      0x00a820e6 CFRunLoopRunSpecific + 470 
    16 CoreFoundation      0x00a81efb CFRunLoopRunInMode + 123 
    17 GraphicsServices     0x04523664 GSEventRunModal + 192 
    18 GraphicsServices     0x045234a1 GSEventRun + 104 
    19 UIKit        0x00f02bfa UIApplicationMain + 160 
    20 HealthKitProto      0x000603ba main + 138 
    21 libdyld.dylib      0x036c7a21 start + 1 
) 
libc++abi.dylib: terminating with uncaught exception of type NSException 

Answer 1

グラムがhealthkitでサポートされてユニットではないようです。

チェックSDK documentationとhere

編集で許さ単位：あなたはその後、質量単位とボリュームユニットを作成することによって最初に分割する必要があり

HKUnit *inches=[HKUnit gramUnit]; // this is not the right unit (nor inches) 
HKQuantity * glucoseQuantity = [HKQuantity quantityWithUnit:inches doubleValue:bloodGlucoseValue]; 

この値の悪いユニットを指定します第2のもの（迅速なもの）：

let milligramPerDeciLiter = HKUnit.gramUnitWithMetricPrefix(.Milli).unitDividedByUnit(HKUnit.literUnitWithMetricPrefix(.Deci)) 

オビツク：

HKUnit* milligramPerDeciLiter = [[HKUnit gramUnitWithMetricPrefix:HKMetricPrefixMilli] unitDividedByUnit:[HKUnit literUnitWithMetricPrefix:HKMetricPrefixDeci]];