我正在为watch OS开发活动跟踪器。我希望能够使用Healthkit读取心率数据。该应用程序是用Objective C编写的，对于此特定任务，那里没有太多的代码示例。
[从阅读Apple文档并观看2018年WWDC视频“锻炼的新方法”，我已经编写了我认为应该在Objective C中工作的代码。在我将其称为Builder之前，一切似乎都工作正常开始CollectionWithStartDate。完成处理程序返回错误：Error Domain = com.apple.healthkit代码= 4“未授权” UserInfo = {NSLocalizedDescription =未授权}
这令我感到惊讶，因为我可以在iOS设备上的“设置”>“隐私”>“健康”>“ myAppName”下看到许可权看起来不错。如Apple文档中所述和上述视频中所示，Watch应用程序在授权过程中触发iOS设备上的提示以批准请求的Healthstore访问运行。
我已经在模拟器和带有配对电话的真实手表上进行了尝试。
有人可以帮忙吗？我正在用这个把头发拔出来！
这里是我为达到这一目的而编写的相关目标C代码（也许我错过了什么？）。
在手表扩展名上：
授权请求（由iOS应用处理）
// awakeWithContext
if (!appHasStarted) {
healthStore = [HKHealthStore new];
[healthStore requestAuthorizationToShareTypes:[self dataTypesToShare] readTypes:[self dataTypesToRead] completion:^(BOOL success, NSError * _Nullable error) {
if (error) {
NSLog(@"Error:requestAuthorizationToShareTypes: %@",[error localizedDescription]);
}
}];
}
- (IBAction)watchStartButtonPressed {
NSLog(@"Pressed start button on watch");
if (watchStartButtonState == startbuttonstatestart) {
dateWhenPressedStart = [NSDate date];
configuration = [[HKWorkoutConfiguration alloc] init];
[configuration setActivityType:HKWorkoutActivityTypeCycling];
NSError *error;
workoutSession = [[HKWorkoutSession alloc] initWithHealthStore:healthStore configuration:configuration error:&error];
if (error) {
NSLog(@"Error:unable to establish a workout session: %@",[error localizedDescription]);
return;
}
workoutSession.delegate = self;
builder = workoutSession.associatedWorkoutBuilder;
builder.delegate = self;
HKLiveWorkoutDataSource* dataSource = [[HKLiveWorkoutDataSource alloc] initWithHealthStore:healthStore workoutConfiguration:configuration];
builder.dataSource = dataSource;
[workoutSession startActivityWithDate:dateWhenPressedStart];
[builder beginCollectionWithStartDate:dateWhenPressedStart completion:^(BOOL success, NSError * _Nullable error) {
if (error) {
NSLog(@"Error:beginCollectionWithStartDate: %@",[error localizedDescription]);
}
}];
//This is the point where I get the error message.
- (NSSet *) dataTypesToShare
{
HKQuantityType *heartRate = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeartRate];
HKQuantityType *energy = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierActiveEnergyBurned];
HKQuantityType *distance = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierDistanceCycling];
return [NSSet setWithObjects:heartRate,energy,distance,nil];
}
- (NSSet *)dataTypesToRead
{
HKQuantityType *heartRate = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeartRate];
HKQuantityType *energy = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierActiveEnergyBurned];
HKQuantityType *distance = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierDistanceCycling];
return [NSSet setWithObjects:heartRate,energy,distance,nil];
}