"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
// 1
@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.
