我收到一個錯誤[類型“ View Controller”不符合協議“ ORKTaskViewControllerDelegate”]

Question

我剛剛開始在Xcode中使用swift3，以便利用Apple.inc提供的ResearchKit。 盡管我已經研究了Swift的Researchkit Tutorial中的教程：Ray Wenderlich入門，但在ViewController擴展方面還是遇到了麻煩。 以下是我的代碼。

import ResearchKit
import UIKit

class ViewController: UIViewController {

  override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
  }

  override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
  }

  @IBAction func consentTapped(sender : AnyObject) {
    let taskViewController = ORKTaskViewController(task: ConsentTask, taskRun: nil)
    taskViewController.delegate = self
    present(taskViewController, animated: true, completion: nil)
  }
}

extension ViewController: ORKTaskViewControllerDelegate {

  func taskViewController(taskViewController: ORKTaskViewController, didFinishWithReason
         reason: ORKTaskViewControllerFinishReason, error: NSError?) {
    //Handle results with taskViewController.result
    taskViewController.dismiss(animated:true, completion: nil)
  }
}

Answer 1

您錯過了添加委托。 將ORKTaskViewControllerDelegate添加到ViewController

class ViewController: UIViewController,ORKTaskViewControllerDelegate {
   override func viewDidLoad() {
    super.viewDidLoad(
   }
}