ResearchKit needs update for iOS 13 with addition of SceneDelegate

[kwanhlee]

Due to the addition of sceneKit, var window: UIWindow? has moved from AppDelegate to SceneDelegate. A lot of the code depends on the window variable. When var window: UIWindow? is declared inside AppDelegate, it causes UI errors, where navigation bar seems to have a transparent view. The Demo needs to be updated to support latest iOS.

[kwanhlee]

This is the snippet of my code:

• The viewController is embedded inside a UINavigationController

import UIKit
import ResearchKit

struct SurveyTask {
    static let surveyTask: ORKOrderedTask = {
        var steps = [ORKStep]()
        
        // Instruction step
        let instructionStep = ORKInstructionStep(identifier: "IntroStep")
        instructionStep.title = "Knoweledge of the Universe Survey"
        instructionStep.text = "Please answer these 6 questions to the best of your ability. It's okay to skip a question if you don't know the answer."
        
        steps += [instructionStep]
        
        // Quest question using text choice
        let questQuestionStepTitle = "Which of the following is not a planet?"
        let textChoices = [
            ORKTextChoice(text: "Saturn", value: 0 as NSCoding & NSCopying & NSObjectProtocol),
            ORKTextChoice(text: "Uranus", value: 1 as NSCoding & NSCopying & NSObjectProtocol),
            ORKTextChoice(text: "Pluto", value: 2 as NSCoding & NSCopying & NSObjectProtocol),
            ORKTextChoice(text: "Mars", value: 3 as NSCoding & NSCopying & NSObjectProtocol)
        ]
        let questAnswerFormat: ORKTextChoiceAnswerFormat = ORKAnswerFormat.choiceAnswerFormat(with: .singleChoice, textChoices: textChoices)

        let questQuestionStep = ORKQuestionStep(identifier: "TextChoiceQuestionStep", title: questQuestionStepTitle, answer: questAnswerFormat)
        questQuestionStep.isOptional = false
        steps += [questQuestionStep]
        
        // Name question using text input
        let nameAnswerFormat = ORKTextAnswerFormat(maximumLength: 25)
        nameAnswerFormat.multipleLines = false
        let nameQuestionStepTitle = "What do you think the next comet that's discovered should be named?"
        let nameQuestionStep = ORKQuestionStep(identifier: "NameQuestionStep", title: nameQuestionStepTitle, answer: nameAnswerFormat)
        
        steps += [nameQuestionStep]
        
        let summaryStep = ORKCompletionStep(identifier: "SummaryStep")
        summaryStep.title = "Thank you."
        summaryStep.text = "We appreciate your time."
        
        steps += [summaryStep]
        
        return ORKOrderedTask(identifier: "SurveyTask", steps: steps)
    }()
}

class ViewController: UIViewController, ORKTaskViewControllerDelegate {
    func taskViewController(_ taskViewController: ORKTaskViewController, didFinishWith reason: ORKTaskViewControllerFinishReason, error: Error?) {
        
        let taskResult = taskViewController.result

        dismiss(animated: true, completion: nil)
    }
    

    override func viewDidLoad() {
        super.viewDidLoad()
        
        let taskViewController = ORKTaskViewController(task: SurveyTask.surveyTask, taskRun: nil)
        taskViewController.delegate = self
        present(taskViewController, animated: true)
        
    }
}

[kwanhlee]

A workaround is to explicitly set the navigationBar color of the taskViewController to match the background color. However, this should be the library's job, which needs to be updated.

        let taskViewController = ORKTaskViewController(task: SurveyTask.surveyTask, taskRun: nil)
        taskViewController.delegate = self
        taskViewController.navigationBar.backgroundColor = UIColor(red: 239/255, green: 239/255, blue: 244/255, alpha: 1.0)
        present(taskViewController, animated: true)

[priyanka16]

Hi,
I'm trying to push ORKTaskViewController on a button click in a SwiftUI app.
I don't have AppDelegate or SceneDelegate.
The app is crashing with this message in log:
[SwiftUI.AppDelegate window]: unrecognized selector sent to instance 0x600002aa8870

Xcode Version: 13.2.1
ResearchKit Version: 2.0.0

Is there any workaround for this?

Thanks.

[rlimalgc]

Hey @priyanka16, you can use the workaround that was described on #1465, the problem is the same, the declaration of the var window: UIWindow? on your app delegate.

[priyanka16]

Hi Lima, I had to deliver the project in a short timeline so I ended up removing the ResearchKit from my app and developed similar views programmatically. Regards, Priyanka

…

On Mon, 12 Dec 2022 at 11:41, Rafael Lima ***@***.***> wrote: Hey @priyanka16 <https://github.com/priyanka16>, you can use the workaround that was described on #1465 <#1465>, the problem is the same, the declaration of the var window: UIWindow? on your app delegate. — Reply to this email directly, view it on GitHub <#1464 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAP5XFRM3SGAZ6APQLJTAPLWM4FPBANCNFSM5A6ATS6Q> . You are receiving this because you were mentioned.Message ID: ***@***.***>