setBackIndicatorImage(_:transitionMaskImage:)
Sets the back button indicator image and its transition mask.
Declaration
func setBackIndicatorImage(_ backIndicatorImage: UIImage?, transitionMaskImage backIndicatorTransitionMaskImage: UIImage?)Parameters
- backIndicatorImage:
The image to display on the leading edge of the back button.
- backIndicatorTransitionMaskImage:
The image for masking content flowing under the back indicator image during push and pop transitions.
Discussion
If you specify nil for either backIndicatorImage or backIndicatorTransitionMaskImage, this method resets both images to their default values.