RPNavigableOrderedTask class

The RPNavigableOrderedTask class adds conditional step navigation to the behavior inherited from the RPOrderedTask class.

It's able to show different questions based on previous answers by using RPPredicateStepNavigationRules. This task allows participant to go back to/looping through previous questions. In that case only the last answer given to the question will be saved.

Inheritance

Constructors

RPNavigableOrderedTask(String identifier, dynamic steps, { dynamic closeAfterFinished: true dynamic shouldReportProgress: true })

Properties

shouldReportProgress bool
read / write
stepNavigationRules Map<String, RPStepNavigationRule>
A dictionary of step identifier Strings and their corresponding navigation rule(RPStepNavigationRule).
read-only
closeAfterFinished bool
If set to true the Task will close after the participant has finished the task. If it's set to false no navigation function is called. [...]
read / write, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
identifier String
A unique identifier of the Task. This identifier connects the Task to its result (RPTaskResult) object.
read-only, inherited
isConsentTask bool
Returns true if the task is a Consent Task. It is considered a Consent Task if it has an RPConsentReviewStep
read-only, inherited
numberOfQuestionSteps int
The number of question steps in the task
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
steps List<RPStep>
The list of RPSteps of the task
read-only, inherited

Methods

getStepAfterStep(RPStep step, RPTaskResult result) RPStep
Returns the step after a specified step if there's any taking the RPStepNavigationRules into consideration. [...]
override
Returns the navigation rule for the given step identifier
removeNavigationRuleForTriggerStepIdentifier(String triggerStepIdentifier) → dynamic
Removes the navigation rule from the given step using its identifier
setNavigationRuleForTriggerStepIdentifier(RPStepNavigationRule stepNavigationRule, String triggerStepIdentifier) → dynamic
Adds a navigation rule to step using its identifier. [...]
getStepBeforeStep(RPStep step, RPTaskResult result) RPStep
Returns the step that precedes the specified step, if there is one. If the specified step is null then it returns the last step. [...]
inherited
getStepWithIdentifier(String identifier) RPStep
Returns the step that matches the specified identifier. Returns null if there is no step with the identifier.
inherited
getTitleForStep(RPStep step) String
Returns the title of a given step
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toString() String
Returns a string representation of this object.
inherited

Operators

operator ==(dynamic other) bool
The equality operator. [...]
inherited