'Argument passed to call that takes no arguments' 实例化 HKWorkoutRouteQuery

Question

我正在尝试读取 HKWorkout 的路线数据，但我不能，因为当我尝试用我的 HKWorkoutRouteQuery 实例化一个 HKWorkoutRouteQuery检索样本。

根据 Apple's documentation，我的代码如下所示：

func getRouteData() -> [(Double)] {
    // Return early if not a distance workout
    guard self.shouldShowDistance else {
        return []
    }

    let store = HKHealthStore()
    let runningObjectQuery = HKQuery.predicateForObjects(from: self.workout)
    let routeQuery = HKAnchoredObjectQuery(type: HKSeriesType.workoutRoute(), predicate: runningObjectQuery, anchor: nil, limit: HKObjectQueryNoLimit) { (query, samples, deletedObjects, anchor, error) in

        guard error == nil else {
            // Handle any errors here.
            fatalError("query failed")
        }

        guard samples != nil else {
            fatalError("No samples")
        }

        guard samples!.count > 0 else { fatalError("No samples") }

        guard let route = samples?.first as? HKWorkoutRoute else {
            fatalError("No samples")
        }

        // Create the route query.
        let query = HKWorkoutRouteQuery(route: route) { (query, locationsOrNill, done, errorOrNil) in

            // This block may be called multiple times.

            if let error = errorOrNil {
                // Handle any errors here.
                return
            }

            guard let locations = locationsOrNil else {
                fatalError("*** Invalid State: This can only fail if there was an error. ***")
            }

            // Do something with this batch of location data.

            if done {
                // The query returned all the location data associated with the route.
                // Do something with the complete data set.
            }

            // You can stop the query by calling:
            // store.stop(query)

        }
        store.execute(query)

    }

    store.execute(routeQuery)

    return []
}

这对我来说毫无意义，因为 Apple 自己的文档要求使用示例实例化 HKWorkoutRouteQuery。

如有任何帮助，我们将不胜感激。非常感谢。

Answer 1

Apple 通过 Bug Reporter 回复了我。问题是我忽略了导入 CoreLocation。您可以通过将以下行添加到文件顶部来修复此错误。

import CoreLocation

顺便说一句，我认为这是一个很好的例子，说明了描述性错误的重要性。如果错误提到了需要 CoreLocation 完成的结果，我本来可以自己解决的。

'Argument passed to call that takes no arguments' 实例化 HKWorkoutRouteQuery

'Argument passed to call that takes no arguments' instantiating HKWorkoutRouteQuery

ios

swift

healthkit

ios11

xcode9.4