ORKTextChoiceAnswerFormat Class Reference

Inherits from	ORKAnswerFormat : NSObject
Declared in	ORKAnswerFormat.h ORKAnswerFormat.m

Overview

The ORKTextChoiceAnswerFormat class represents an answer format that lets participants choose from a fixed set of text choices in a multiple or single choice question.

The text choices are presented in a table view, using one row for each answer. The text for each answer is given more prominence than the detailText in the row, but both are shown.

The text choice answer format produces an ORKChoiceQuestionResult object.

Other Methods

`– initWithStyle:textChoices:`

Returns an initialized text choice answer format using the specified question style and array of text choices.

- (instancetype)initWithStyle:(ORKChoiceAnswerStyle)style textChoices:(NSArray<ORKTextChoice*> *)textChoices

Parameters

`style`	The style of question, such as single or multiple choice.
`textChoices`	An array of `ORKTextChoice` objects.

Return Value

An initialized text choice answer format.

Declared In

ORKAnswerFormat.h

`style`

The style of the question (that is, single or multiple choice).

@property (readonly) ORKChoiceAnswerStyle style

Declared In

ORKAnswerFormat.h

`textChoices`

An array of ORKTextChoice objects that represent the choices that are displayed to participants.

@property (copy, readonly) NSArray<ORKTextChoice*> *textChoices

Discussion

The choices are presented as a table view, using one row for each answer. The text for each answer is given more prominence than the detailText in the row, but both are shown.

Declared In

ORKAnswerFormat.h

Other Methods

`– validateParameters`

Validates the parameters of the answer format to ensure that they can be displayed.

- (void)validateParameters

Discussion

Typically, this method is called by the validation methods of the owning objects, which are themselves called when a step view controller that contains this answer format is about to be displayed.

Declared In

ORKAnswerFormat.h

`– questionType`

The type of question. (read-only)

- (ORKQuestionType)questionType

Discussion

You can use this enumerated value in your Objective-C code to switch on a rough approximation of the type of question that is being asked.

Note that answer format subclasses override the getter to return the appropriate question type.

Declared In

ORKAnswerFormat.h