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// Created by Bishal Ghimire on 5/6/16. |
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// Copyright © 2016 Bishal Ghimire. All rights reserved. |
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import Foundation |
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import ResearchKit |
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class SurveyQuestion { |
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var task: ORKNavigableOrderedTask? |
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let choiceGood = ORKTextChoice(text: "Good", value: 1) |
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let choiceFair = ORKTextChoice(text: "Fair", value: 2) |
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let choicePoor = ORKTextChoice(text: "Poor", value: 3) |
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func answerGoodFairPoor() -> [ORKTextChoice] { |
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return [choiceGood, choiceFair, choicePoor] |
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} |
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func makeNavigableLoopTask() { |
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var steps = [ORKStep]() |
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var answerFormat: ORKAnswerFormat |
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var step: ORKStep |
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var textChoices: [ORKTextChoice] |
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var questionStep: ORKQuestionStep |
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// Intro Step |
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step = ORKInstructionStep(identifier: "introStep") |
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step.title = "This is demo of loop navigalbe ordered task" |
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steps.append(step) |
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// Loop target step |
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step = ORKInstructionStep(identifier: "loopAStep") |
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step.title = "You will return to this step" |
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steps.append(step) |
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// Branching paths |
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textChoices = [ |
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ORKTextChoice(text: "Scale", value: "scale"), |
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ORKTextChoice(text: "Text Choice", value: "textchoice") |
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] |
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answerFormat = ORKTextChoiceAnswerFormat(style: .SingleChoice, textChoices: textChoices) |
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questionStep = ORKQuestionStep(identifier: "branchingStpe", title: "Which question do you prefer ?", answer: answerFormat) |
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questionStep.optional = false |
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steps.append(questionStep) |
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// Scale Question Step |
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let scaleAnserFormat = ORKAnswerFormat.continuousScaleAnswerFormatWithMaximumValue(10, minimumValue: 1, defaultValue: 8, maximumFractionDigits: 3, vertical: true, maximumValueDescription: "This is MAX", minimumValueDescription: "This is MIN") |
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step = ORKQuestionStep.init(identifier: "scleStep", title: "On a scale of 1 to 10, what is your mood?", answer: scaleAnserFormat) |
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steps.append(step) |
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// Text Choice question Step |
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textChoices = [ |
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ORKTextChoice(text: "Good", value: "good"), |
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ORKTextChoice(text: "Bad", value: "bad") |
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] |
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answerFormat = ORKAnswerFormat.choiceAnswerFormatWithStyle(.SingleChoice, textChoices: textChoices) |
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questionStep = ORKQuestionStep(identifier: "textChoiceStep", title: "How is your mood?", answer: answerFormat) |
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questionStep.optional = false |
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steps.append(questionStep) |
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// Loop conditional step |
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answerFormat = ORKAnswerFormat.booleanAnswerFormat() |
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step = ORKQuestionStep(identifier: "loopBStep", title: "Do you want to repeat the survey ?", answer: answerFormat) |
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step.optional = false |
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steps.append(step) |
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step = ORKInstructionStep(identifier: "endStep") |
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step.title = "You have finished the task" |
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steps.append(step) |
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// Build Navigation Rules |
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let resultSelector: ORKResultSelector |
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let predicateRule: ORKPredicateStepNavigationRule |
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let directRule: ORKDirectStepNavigationRule |
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// From the branching step, go to either sclaeStep or textChoiceStep |
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resultSelector = ORKResultSelector(resultIdentifier: "branchingStep") |
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let predicateAnswerType = ORKResultPredicate.predicateForChoiceQuestionResultWithResultSelector(resultSelector, expectedAnswerValue: "scale") |
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predicateRule = ORKPredicateStepNavigationRule(resultPredicates: [predicateAnswerType], |
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destinationStepIdentifiers: ["scaleStep"], |
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defaultStepIdentifier: "textChoiceStep", |
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validateArrays: true) |
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task?.setNavigationRule(predicateRule, forTriggerStepIdentifier: "branchingStep") |
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} |
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} |
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