RPAnswerFormat class
A base (abstract) class for different Answer Formats.
The Answer Format describes the format how a question can be answered. Research Package uses RPQuestionStep to represent a question in a survey. Each questions needs to have an associated Answer Format. Note: This class should be an abstract class but since we need to serialize it we have to provide a constructor and factory. There's no better solution found yet. Used in RPStepResult
- Implementers
- Annotations
- @JsonSerializable(fieldRename: FieldRename.snake, includeIfNull: false)
Constructors
- RPAnswerFormat()
- The default constructor. The appropriate subclass of RPAnswerFormat should be used instead of this directly.
-
RPAnswerFormat.fromJson(Map<
String, dynamic> json) -
factory
Properties
- questionBody → Widget
-
The widget (UI representation) [...]
read-only
- questionType ↔ QuestionType
-
The Question Type of the Answer Format. Should be implemented in the subclasses.
read / write
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
toJson(
) → Map< String, dynamic> -
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