1

我能够获得活动的基本数据duration等totalEnergyBurned。但是我怎样才能访问元数据HKWasUserEntered startDate呢？

到目前为止，这是我的代码

var predicate = HKQuery.predicateForWorkoutsWithWorkoutActivityType(HKWorkoutActivityType.Cycling)
 let sampleQuery = HKSampleQuery(sampleType: HKWorkoutType.workoutType(), predicate: predicate, limit: 0, sortDescriptors: [sortDescriptor])
    { (sampleQuery, results, error ) -> Void in

        if let queryError = error {
            print( "There was an error while reading the samples: \(queryError.localizedDescription)")
        }
        else
        {
            print(results!)
          for samples: HKSample in results! {
                var workout: HKWorkout = (samples as! HKWorkout)
                print("workout Distance is \(workout.totalDistance)")
                print("workout Energy Burned is \(workout.totalEnergyBurned)")
                print("workout Duration in seconds is \(workout.duration)")

            }
        }
        completion(results,error)
    }

    executeQuery(sampleQuery)

当我打印results时，我得到这个作为回报

[（46）“健康”（9.3.2）元数据：{ HKWasUserEntered = 1; 2016-07-18 10:58:00 +0500 2016-07-18 11:58:00 +0500]

所以基本上我怎样才能从中获取HKWasUserEntered和日期？

4

3 回答 3

0

我了解如何使用元数据。

            if let metadata = workout.metadata {
                if let  mataTemperature = metadata[HKMetadataKeyWeatherTemperature] {
                    if let quantityTemperature = mataTemperature as? HKQuantity {
                        let celsius = quantityTemperature.doubleValue(for: HKUnit.degreeCelsius())
                        print(celsius)
                    }
                }
于 2019-04-04T13:59:40.500 回答
0

上有一个metadata字典属性HKSample。您可以像这样打印值，例如：

print("workout was user entered \(workout.metadata[HKWasUserEntered])")

于 2016-07-19T18:19:51.070 回答
0

尝试以下操作：

print("was user entered --> \(workout.metadata?[HKMetadataKeyWasUserEntered])")
于 2018-02-06T07:13:29.053 回答