carekit も使用するアプリで、researchkit テストから時限ウォークを使用しています。ただし、このエラーが発生する理由はわかりません。どんな助けでも大歓迎です。これは私がこれまでに持っているものです。(エラー状態未解決の識別子の使用)
import ResearchKit
public var timedWalk: ORKOrderedTask
{return ORKOrderedTask.timedWalk(withIdentifier: "Timed Walk",intendedUseDescription: "Assessment measures balance", distanceInMeters: 3, timeLimit: 13, includeAssistiveDeviceForm: true, options: .excludeConclusion)
//Create a question.
let title = "Estimate your fall Risk"
let text = "This assessment measure how fast you walk to estimate your fall risk. Start from a sitting position stand walk 10 feet turn around and walk back to sitting position"
***let questionStep = ORKQuestionStep(identifier: "Timed Get up and Go", title: title, text: text, answer: answerFormat)***
questionStep.isOptional = false
//Create an ordered task with a single question
return ORKOrderedTask(identifier: "Timed Walk", steps: [questionStep])