Protocols

RSDSoundPlayer is a protocol for playing sounds intended to give the user UI feedback during the running of a task.

RSDVoiceBox is used by RSDStepViewController to speak text strings.

As of this writing, there is no simple way for an application to allow selectively locking the orientation of the app to portrait, while still allowing some view controllers to require landscape. This is intended as a work-around for that limitation. Using this feature requires the view controller that needs to change the orientation to set the orientationLock in viewWillAppear and then clear the lock on viewDidAppear. syoung 08/15/2019

RSDCancelActionController is a shared protocol that can be used to present a consistent response to a cancel action (button tap) where the implementation of the step view controller is not shared.

RSDPageViewControllerProtocol allows replacing the UIPageViewController in the base class with a different view controller implementation. It is assumed that the implementation is for a view controller appropriate to the current device.

RSDOptionalTaskViewControllerDelegate is a delegate protocol defined as @objc to allow the methods to be optionally implemented. As such, these methods cannot take Swift protocols as their paramenters.

RSDTaskViewControllerDelegate is an extension of the RSDTaskControllerDelegate protocol that also implements optional methods defined by RSDOptionalTaskViewControllerDelegate.

Optional protocol that can be used to get the step view controller from the step rather than from the task view controller or delegate.

RSDTableStepLayoutConstants defines the layout constants used by the RSDTableStepViewController.

Utility for presenting alerts

For the case where the learn more action is designed specifically for showing a view controller, this allows for vending a custom learn more action without requiring a custom step view.

A protocol for setting up a delegate for the button cell.

Constants used by the button cell to set up standard constraints.

RSDLoadingViewControllerProtocol is a convenience protocol to allow UIViewControllers that do not inherit from the same subclass to show and hide a loading indicator.

RSDPickerViewProtocol is a protocol for an input view that can be used to pick an answer.

RSDPickerObserver is an observer of changes to the picker.

A protocol that UIView subclasses can use to standardize the color of their view properties.

Constants used by the navigation view header to set up standard constraints.

Constants used by the navigation view footer to set up standard constraints.

RSDStepTextFieldCellLayoutConstants defines the layout constants used by a RSDStepTextFieldCell.

RSDStepTextViewCellLayoutConstants defines the layout constants used by a RSDStepTextViewCell.

RSDStepTextInputView defines custom properties associated with a ‘UITextView’ or ‘UITextField’ and provides read only access to other common properties.