"Hello World" with Instruction Step
No software can go forward without a simple "Hello World" application.
If we break this rule, the Gods of "Programming for Dummies" will crush us !
So without any further due lets do some coding !!!
https://gist.github.com/bishalg/c5268460b81344451e44
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| // | |
| // HomeVC.swift | |
| // LoginKit | |
| // | |
| // Created by Bishal Ghimire on 2/24/16. | |
| // Copyright © 2016 Bishal Ghimire. All rights reserved. | |
| // | |
| import UIKit | |
| import ResearchKit | |
| class HomeVC: UIViewController { | |
| @IBOutlet weak var gettingStartedButton: UIButton! | |
| @IBAction func gettingStartedAction(sender: UIButton) { | |
| self.sayHellowToTheWorld() | |
| } | |
| func sayHellowToTheWorld() { | |
| // Step - 1 | |
| let stepStart = ORKInstructionStep(identifier: "step1") | |
| stepStart.title = "Hello World!" | |
| let stepQuestion1 = ORKQuestionStep(identifier: "QuestionNo1") | |
| stepQuestion1.title = "Are you an iOS developer ?" | |
| let yesNoAnswerFormat = ORKAnswerFormat.booleanAnswerFormat() | |
| stepQuestion1.answerFormat = yesNoAnswerFormat | |
| let stepEnd = ORKCompletionStep(identifier: "step2") | |
| stepEnd.title = "That is it ! :] Thanks" | |
| let task = ORKOrderedTask(identifier: "ourFirstTask", steps: [stepStart, stepQuestion1, stepEnd]) | |
| let taskVC = ORKTaskViewController(task: task, taskRunUUID: nil) | |
| taskVC.delegate = self | |
| presentViewController(taskVC, animated: true, completion: nil) | |
| } | |
| override func viewDidLoad() { | |
| super.viewDidLoad() | |
| } | |
| override func didReceiveMemoryWarning() { | |
| super.didReceiveMemoryWarning() | |
| } | |
| override func layoutSublayersOfLayer(layer: CALayer) { | |
| super.layoutSublayersOfLayer(layer) | |
| } | |
| @IBAction func surveyTapped(sender: AnyObject) { | |
| let taskViewController = ORKTaskViewController(task: SurveyTask, taskRunUUID: nil) | |
| taskViewController.delegate = self | |
| presentViewController(taskViewController, animated: true, completion: nil) | |
| } | |
| } | |
| extension HomeVC: ORKTaskViewControllerDelegate { | |
| func taskViewController(taskViewController: ORKTaskViewController, didFinishWithReason reason: ORKTaskViewControllerFinishReason, error: NSError?) { | |
| self.dismissViewControllerAnimated(true, completion: nil) | |
| let buttonTitle: String? | |
| switch reason { | |
| case .Completed: | |
| buttonTitle = "Completed" | |
| case .Discarded: | |
| buttonTitle = "Discarded" | |
| case .Failed: | |
| buttonTitle = "Failed" | |
| case .Saved: | |
| buttonTitle = "Saved" | |
| } | |
| gettingStartedButton.setTitle(buttonTitle, forState: .Normal) | |
| let allResults = taskViewController.result.results | |
| for stepResults in allResults! as! [ORKStepResult] { | |
| print("---") | |
| for result in stepResults.results! { | |
| // ORKBooleanQuestionResult | |
| if result.identifier == "QuestionNo1" { | |
| print("found question No 1") | |
| } | |
| print(result) | |
| } | |
| } | |
| } | |
| } |
@IBOutlet weak var gettingStartedButton: UIButton!// 2
@IBAction func gettingStartedAction(sender: UIButton) { self.sayHellowToTheWorld() } func sayHellowToTheWorld() { // Make Steps let step1 = ORKInstructionStep(identifier: "step1") step1.title = "Hello World!" let step2 = ORKInstructionStep(identifier: "step2") step2.title = "That is it ! :] Thanks"// Make a Ordered Task of steps
let task = ORKOrderedTask(identifier: "ourFirstTask", steps: [step1, step2])// Present the ViewController of hence made Task !
let taskVC = ORKTaskViewController(task: task, taskRunUUID: nil) taskVC.delegate = self presentViewController(taskVC, animated: true, completion: nil) }// 3
extension HomeVC: ORKTaskViewControllerDelegate {
func taskViewController(taskViewController: ORKTaskViewController, didFinishWithReason reason: ORKTaskViewControllerFinishReason, error: NSError?) { self.dismissViewControllerAnimated(true, completion: nil) let buttonTitle: String? switch reason { case .Completed: buttonTitle = "Completed" case .Discarded: buttonTitle = "Discarded" case .Failed: buttonTitle = "Failed" case .Saved: buttonTitle = "Saved" }
gettingStartedButton.setTitle(buttonTitle, forState: .Normal) }
}
// 1 - Getting Started -
In our VC we have a button which will start a ResearchKit survey and will change based on our action
// 2 - Action on button will start the survey
If we do "Next" and "Done" after we started from "Getting Started" button it would present us a Task-ViewController which will make a delegate at the end of it step.
// 3
// Extend out View Controller so that it handles the Delegate of TaskVC
// Once the task is completed we will update our button to reflect the result !
// And finally its our responsibility to dismiss the VC we presented.
Here is one of the expected flow -
1. Home Screen
2. Research Kit - TaskVC presented with "Hello World" Instruction Step ( ORKInstructionStep )
3. Second Instruction Step with "DONE" button - 2/ 2
Finally if we will get any one of the following result ( ORKTaskViewControllerFinishReason ) -
In this case we will have either Completed or Discarded result.
