此 HealthKit 错误的原因是啥：“将样本添加到锻炼时发生错误”？
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【中文标题】此 HealthKit 错误的原因是啥：“将样本添加到锻炼时发生错误”？【英文标题】：What is the cause of this HealthKit error: "An error occurred while adding a sample to the workout"?此 HealthKit 错误的原因是什么：“将样本添加到锻炼时发生错误”？ 【发布时间】：2015-03-16 01:04:20 【问题描述】：我明白为什么，但 HealthKit 提出的错误的模棱两可完全是一个黑匣子。为什么会出现错误：
向锻炼添加样本时出错：操作无法完成。
我一直在网上搜索示例，但其中大多数都在 swift 中。 :(
这是我的代码：
- (NSSet *)dataTypesToRead
HKQuantityType *heartRate = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeartRate];
return [NSSet setWithObjects:heartRate, nil];
- (NSSet *)dataTypesToWrite
HKWorkoutType* workout = [HKWorkoutType workoutType];
HKQuantityType *energyBurnedType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierActiveEnergyBurned];
return [NSSet setWithObjects:workout, energyBurnedType, nil];
- (void)saveWorkout
HKHealthStore* healthStore = [[HKHealthStore alloc] init];
NSDate* timeOfWorkout = [NSDate date];
HKWorkoutType* type = [HKWorkoutType workoutType];
[healthStore requestAuthorizationToShareTypes:[self dataTypesToWrite]
readTypes:[self dataTypesToRead]
completion:^(BOOL success, NSError *error)
if(success == YES)
// This sample uses hard-coded values and performs all the operations inline
// for simplicity's sake. A real-world app would calculate these values
// from sensor data and break the operation up using helper methods.
HKQuantity *energyBurned =
[HKQuantity quantityWithUnit:[HKUnit kilocalorieUnit]
doubleValue:333.0];
HKQuantity *distance =
[HKQuantity quantityWithUnit:[HKUnit mileUnit]
doubleValue:0.0];
// Provide summary information when creating the workout.
HKWorkout *workout = [HKWorkout workoutWithActivityType:HKWorkoutActivityTypeTraditionalStrengthTraining
startDate:timeOfWorkout
endDate:timeOfWorkout
duration:0
totalEnergyBurned:energyBurned
totalDistance:distance
metadata:nil];
// Save the workout before adding detailed samples.
[healthStore saveObject:workout withCompletion:^(BOOL success, NSError *error)
if (!success)
// Perform proper error handling here...
NSLog(@"*** An error occurred while saving the "
@"workout: %@ ***", error.localizedDescription);
abort();
];
// Add optional, detailed information for each time interval
NSMutableArray *samples = [NSMutableArray array];
HKQuantityType *energyBurnedType =
[HKObjectType quantityTypeForIdentifier:
HKQuantityTypeIdentifierActiveEnergyBurned];
[samples addObject:energyBurnedType];
// Add all the samples to the workout.
[healthStore
addSamples:samples
toWorkout:workout
completion:^(BOOL success, NSError *error)
if (!success)
// Perform proper error handling here...
NSLog(@"*** An error occurred while adding a "
@"sample to the workout: %@ ***",
error.localizedDescription);
abort();
];
else
// Determine if it was an error or if the
// user just canceld the authorization request
];
【问题讨论】：
控制台中是否有任何消息或设备上的崩溃日志？当您从 Cocoa API 收到“操作无法完成”错误时，通常表明在与负责执行操作的系统守护进程通信时发生了某种故障。例如，在这种情况下，healthd 可能已经崩溃。 我得到的唯一控制台消息是：“*** 将样本添加到锻炼时发生错误：操作无法完成。（Cocoa 错误 4097。）***” 这很可能意味着 healthd 在响应您的请求时崩溃了。您应该找到 healthd 崩溃日志，然后向 Apple 提交错误：bugreporter.apple.com。 @tshortli，详细检查我的答案，崩溃是由于样本可变数组而发生的。其中包含一组 HKQuantityType 对象，但它应该是 HKQuantitySample 或 HKCategorySample。 【参考方案1】：在这里我发现了 2 个问题，
-
您在将锻炼保存到 HealthKit 之前尝试将样本添加到锻炼中。
Samples 数组应包含 HKQuantitySample 或 HKCategorySample 类型的对象。
这工作正常...
- (NSSet *)dataTypesToRead
HKQuantityType *heartRate = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeartRate];
return [NSSet setWithObjects:heartRate, nil];
- (NSSet *)dataTypesToWrite
HKWorkoutType* workout = [HKWorkoutType workoutType];
HKQuantityType *energyBurnedType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierActiveEnergyBurned];
return [NSSet setWithObjects:workout, energyBurnedType, nil];
- (void)saveWorkout
HKHealthStore* healthStore = [[HKHealthStore alloc] init];
NSDate* timeOfWorkout = [NSDate date];
[healthStore requestAuthorizationToShareTypes:[self dataTypesToWrite]
readTypes:[self dataTypesToRead]
completion:^(BOOL success, NSError *error)
if(success == YES)
// This sample uses hard-coded values and performs all the operations inline
// for simplicity's sake. A real-world app would calculate these values
// from sensor data and break the operation up using helper methods.
HKQuantity *energyBurned =
[HKQuantity quantityWithUnit:[HKUnit kilocalorieUnit]
doubleValue:333.0];
HKQuantity *distance =
[HKQuantity quantityWithUnit:[HKUnit mileUnit]
doubleValue:0.0];
// Provide summary information when creating the workout.
HKWorkout *workout = [HKWorkout workoutWithActivityType:HKWorkoutActivityTypeTraditionalStrengthTraining
startDate:timeOfWorkout
endDate:timeOfWorkout
duration:0
totalEnergyBurned:energyBurned
totalDistance:distance
metadata:nil];
// Save the workout before adding detailed samples.
[healthStore saveObject:workout withCompletion:^(BOOL success, NSError *error)
if (!success)
// Perform proper error handling here...
NSLog(@"*** An error occurred while saving the "
@"workout: %@ ***", error.localizedDescription);
// abort();
else
// Add optional, detailed information for each time interval
NSMutableArray *samples = [NSMutableArray array];
HKQuantityType *energyBurnedType =
[HKObjectType quantityTypeForIdentifier:
HKQuantityTypeIdentifierActiveEnergyBurned];
HKQuantity *energyBurnedQuantity = [HKQuantity quantityWithUnit:[HKUnit kilocalorieUnit] doubleValue:334];
HKQuantitySample *energyBurnedSample = [HKQuantitySample quantitySampleWithType:energyBurnedType quantity:energyBurnedQuantity startDate:[NSDate date] endDate:[NSDate date]];
[samples addObject:energyBurnedSample];
// Add all the samples to the workout.
[healthStore
addSamples:samples
toWorkout:workout
completion:^(BOOL success, NSError *error)
if (!success)
// Perform proper error handling here...
NSLog(@"*** An error occurred while adding a "
@"sample to the workout: %@ ***",
error.localizedDescription);
// abort();
];
];
else
// Determine if it was an error or if the
// user just canceld the authorization request
];
【讨论】：
谢谢，我确实从样本中看到 HealthKit 中的“334”kcal，这正是我所需要的。一个问题，当 HKWorkout 对象是使用健身活动类型创建时，变量“energyBurned”作为参数包含在内，似乎没有使用。由于 HKSample 实际上提供 kcal，我可以将 nil 传递给此参数吗？如果不是，我该如何处理这些无关代码？ @MattMiller，根据 Apple 的 HealthKit 设计理念，HKSample 是 HKQuantitySample 和 HKCategorySample 类的基类。 HKSample 的目的是存储要存储的样本类型，在我们的例子中它是“HKQuantityTypeIdentifierActiveEnergyBurned”。但是，HKSample 不能存储数据的测量（数量/类别）。 HKSample 的子类负责存储这些数据。甚至无法通过“init”方法实例化 HKSample。以上是关于此 HealthKit 错误的原因是啥：“将样本添加到锻炼时发生错误”？的主要内容，如果未能解决你的问题，请参考以下文章
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