Ios 当应用程序未运行（已终止）时，HKObserverQuery是否可以接收通知？

我的要求是使用enableBackgroundDeliveryForType:方法注册任何一个健康数据，如步数、体重、心率等，用于后台传递。然后为要检查的相同健康数据创建观察者查询

在这种情况下，如果我的应用程序被用户强制终止，并使用Health app更改了健康数据。到了这个阶段，是否可以将通知发送到我的应用程序

是否必须注册任何后台模式，才能通过HKObserverQuery获得健康数据修改通知

编辑1：

- (void)requestAuthorizationToShareTypes:(NSSet *)typesToShare readTypes:(NSSet *)typesToRead completion:(void (^)(BOOL, NSError *))completion
{
    if ([HKHealthStore isHealthDataAvailable]) {

        [self.healthStore requestAuthorizationToShareTypes:typesToShare readTypes:typesToRead completion:^(BOOL success, NSError *error) {

            if(success)
            {
                self.authorizationSuccess = YES;
                completion(YES, nil);
            }
            else
            {
                [MyUtilities showAlertWithTitle:@"Authorization fail!" message:@"You didn't allow to access Health data."];
                completion(NO, error);
                return;
            }
        }];
    }
    else
    {
        [MyUtilities showAlertWithTitle:@"Sorry!" message:@"Your device does not support Health data."];
        NSDictionary *errorDictionary = @{ NSLocalizedDescriptionKey : @"Your device doesn't support Health Kit."};
        NSError *error = [[NSError alloc] initWithDomain:@"" code:2 userInfo:errorDictionary];
        completion(NO, error);
        return;
    }
}
- (void)authorizeConsumeHealth:(void (^)(BOOL, NSError *))completion
{
    NSSet *readObjectTypes  = [NSSet setWithObjects:
                               [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDietaryCaffeine],
                               [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDietaryCalcium],
                               [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDietaryChloride],
                               [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDietaryIron],
                               [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount],
                               [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBloodPressureSystolic],
                               [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBloodPressureDiastolic],                               [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount],
                               nil];

    [self requestAuthorizationToShareTypes:nil readTypes:readObjectTypes completion:^(BOOL success, NSError *error) {
        if(completion)
        {
            completion(success, error);
            [self observeStepCountChanges];
        }

    }];

}

- (void)observeStepCountChanges
{
    HKSampleType *sampleType = [HKSampleType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];

    [self.healthStore enableBackgroundDeliveryForType:sampleType frequency:HKUpdateFrequencyImmediate withCompletion:^(BOOL success, NSError *error) {}];


    HKObserverQuery *query = [[HKObserverQuery alloc] initWithSampleType:sampleType predicate:nil updateHandler:^(HKObserverQuery *query, HKObserverQueryCompletionHandler completionHandler, NSError *error) {
        if(error)
        {

            NSLog(@"Steps count observer completion block. Error: %@", error);
        }
        else
        {
            NSLog(@"Steps count observer completion block");

        }
    }];
    [self.healthStore executeQuery:query];


}

---

请帮帮我。谢谢。

@tshortli，我已经在我的应用程序中应用了HKObserverQuery，然后也启用了后台交付。我希望在后台模式下启用位置服务，但为了启用HealthKit，我对位置服务没有要求。请添加您使用的代码片段。如果没有看到您已经尝试过的内容，就很难判断出什么可能是错误的。巴努-即使您的应用被用户明确杀死，您是否能够确定您的应用是否通过后台交付被唤醒？@PratikStephen请看我的答案：/cc BhanuPrakash