Protocols

A controller that implements TransitionProviding provides a custom transition animator to use when presenting or dismissing the controller.

Every frame builder must implement this protocol.

The CanvasViewDataSource protocol defines methods that allow you to pass needed information to the canvas view.

The CanvasViewDelegate protocol defines methods that allow you to react to changes of the canvas view.

The PhotoEditToolControllerDelegate protocol defines methods that allow you respond to the events of an instance of PhotoEditToolController.

The GeneratorDelegate protocol defines methods that allow you to respond to changes that are made to a generator.

A view controller that is pushed onto a toolbar controller must implement this protocol if it wants to present a toolbar item in the toolbar.

A TransitionAnimator provides a custom transition animation.

The methods declared by the CropAndStraightenViewDelegate protocol allow the adopting delegate to respond to message from the CropAndStraightenView class and thus respond to operations such as tracking.

This delegate is used to inform a UI component when a new blend mode is selected.

The ScalePickerDelegate protocol defines a set of methods you can use to receive value-change messages for ScalePicker objects.

The PhotoEditViewControllerDelegate protocol defines methods that allow you to respond to the events of an instance of PhotoEditViewController.

To use a custom progress HUD when saving a photo or while downloading stickers etc., your progress view must implement this protocol. Please note that your custom progress view should disable user interaction in all parts of the editor. Changing state while the progress view is visible can cause unexpected behavior.

The logger is used by the SDK, to promote import informations. A client could use his own logger to log the messages to a server or something alike.

Consumers of analytics screen views and events must implement this protocol. You can then forward all screen views and events to an analytics service of your choice. To receive events you must register your AnalyticsClient instance with Analytics.addAnalyticsClient(_:).

The FontSelectorViewDelegate protocol defines methods that allow you to respond to the events of an instance of FontSelectorView.

This protocol is used to delegate show and hide commands to any view that is able to display a progress view.