- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface BackButtonCallbackCallback for back button presses while the Unblu UI is displayed.
boolean handlePress(boolean hasBackStack)Called whenever the back button is pressed while the Unblu UI is displayed
hasBackStack- is true if there is still some back stack in the webView. False otherwise
- true if the press of the button is handled by the callback, false if the SDK should handle it itself.