小编Tho*_*mas的帖子

我正在尝试使用iOS 8.1.2对iPhone 6上的计步器缓存进行查询,我使用的是Objective-c,我已经导入了CoreMotion框架,并将其包含在项目中,代码看起来像这样

NSDate *startDate = [[NSDate date] dateByAddingTimeInterval:-60*60*12];
NSDate *endDate = [NSDate date];
CMPedometer *pedo = [[CMPedometer alloc]init];
[pedo queryPedometerDataFromDate:startDate toDate:endDate withHandler:^(CMPedometerData *pedometerData, NSError *error)
 {
     if (error)
     {
         NSLog(@"error: %@", error);
     }
}];

这给了我错误:错误域= CMErrorDomain代码= 103"操作无法完成.(CMErrorDomain错误103.)"

如果我在这样的Swift中做同样的事情

var dateString = "2014-12-15"
    var dateFormatter = NSDateFormatter()
    dateFormatter.dateFormat = "YYYY-MM-DD"

    var startDate = dateFormatter.dateFromString(dateString)
    var endDate = NSDate()

    pedometer.queryPedometerDataFromDate(startDate, toDate: endDate){
        (data, error) -> Void in
        if error != nil
        {
            println("There was an error requesting data from the pedometer: …

您好我正在尝试设置启用了后台传递的运行状况存储观察器.我的问题是,当屏幕被锁定时,它不会传递任何东西.我已经简化了我的代码来解决这个问题:)我在我的plist中有HealthKit并且我接受了healthStore类型的步数.当应用程序打开并且屏幕未锁定时,一切都很好.但是当屏幕被锁定时,我没有得到任何观察.出于测试目的,频率设置为立即.

我的代码如下

- (void)setupHealthStore{
if ([HKHealthStore isHealthDataAvailable])
{
    NSSet *readDataTypes = [self dataTypesToRead];
    self.healthStore = [[HKHealthStore alloc]init];
    [self.healthStore requestAuthorizationToShareTypes:nil readTypes:readDataTypes completion:^(BOOL success, NSError *error)
     {
         if (success)
         {
             HKQuantityType *quantityType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
             [self.healthStore enableBackgroundDeliveryForType:quantityType frequency:HKUpdateFrequencyImmediate withCompletion:^(BOOL success, NSError *error)
             {
                 if (success)
                 {
                     [self setupObserver];
                 }
             }];
         }
     }];
}

}

在AppDelegate didfinishLaunchWithOptions中调用上述方法

下一个方法是

- (void)setupObserver{
HKQuantityType *quantityType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
HKObserverQuery *query = [[HKObserverQuery alloc]initWithSampleType:quantityType predicate:nil updateHandler:^(HKObserverQuery *query, HKObserverQueryCompletionHandler completionHandler, NSError *error)
{
    if (!error)
    {
        [self alarm]; …