由於未捕獲異常而終止應用程序'_HKObjectValidationFailureException'

Question

我在iOS中將血糖值保存到Health Kit應用程序中。

-(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"); 

} 

}]; 

} 

如果我運行應用程序，我得到了這行代碼以下異常：

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

跟蹤：

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

似乎克不通過healthkit支持的單位。

檢查在SDK documentation和here

編輯允許單位：你爲這個值

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

你應該建立一個質量單位和容積單位再分割首先由指定一個壞的單元第二個（快速）：

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

在Objc：

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