RPQuestionStep class

Represents a RPStep holding a single question to be presented to the user.

The rendering of an RPQuestionStep depends on its answerFormat. Each answer type has its own user interface widget.

If you want to present multiple questions on the same page, use an RPFormStep.

  • @JsonSerializable(fieldRename: FieldRename.snake, includeIfNull: false)


RPQuestionStep({required String identifier, required String title, bool optional = false, required RPAnswerFormat answerFormat, bool autoSkip = false, Duration timeout = const Duration(seconds: 0), bool autoFocus = false})
Creates a RPQuestionStep.
RPQuestionStep.fromJson(Map<String, dynamic> json)


$type String?
The runtime class name (type) of this object. Used for deserialization from JSON objects.
getter/setter pairinherited
answerFormat RPAnswerFormat
The answer format which describes the format how a question can be answered.
getter/setter pair
autoFocus bool
Should the keyboard automatically be displayed when asking a text question? Applies only to RPTextAnswerFormat questions. False by default.
getter/setter pair
autoSkip bool
Should we automatically move to the next step after timeout seconds? False by default.
getter/setter pair
fromJsonFunction Function
The function which can convert a JSON string to an object of this type.
no setteroverride
hashCode int
The hash code for this object.
no setterinherited
identifier String
A unique identifier of the Step. This identifier connects the step to its result (RPResult) object.
jsonType String
Return the __type to be used for JSON serialization of this class. Default is runtimeType. Only specify this if you need another type.
no setterinherited
optional bool
Can this step be skipped? If so, the result for the step will be null.
getter/setter pairinherited
placeholder String?
The placeholder text for the Question Steps using an answer format which requires text entry
getter/setter pair
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
stepWidget Widget
The widget (UI representation) of the step.
no setteroverride
text String?
The text of the Step. Different types of Steps are using the text text differently.
getter/setter pairinherited
timeout Duration
If autoSkip is true, defines how long to wait for the answer before automatically skipping to the next step.
getter/setter pair
timer Timer?
getter/setter pairinherited
title String
The title text. Different types of Steps are using the title text differently.
getter/setter pairinherited


noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
toJson() Map<String, dynamic>
Return a JSON encoding of this object.
toString() String
A string representation of this object.


operator ==(Object other) bool
The equality operator.