@protocol MDCBottomDrawerPresentationControllerDelegate < UIAdaptivePresentationControllerDelegate>
Delegate for MDCBottomSheetPresentationController.
This method is called when the bottom drawer will change its presented state to one of the MDCBottomDrawerState states.
presentation controller of the bottom drawer
the drawer’s state
This method is called when the drawer is scrolled/dragged and provides a transition ratio value between 0-100% (0-1) that indicates the percentage in which the drawer is close to reaching the end of its scrolling. If the drawer is about to reach fullscreen, its percentage moves between 0-100% as it starts covering the safe area and status bar. If the drawer doesn’t reach full screen, it moves between 0-100% as it reaches 20 points away from being fully expanded.
- 1 or 100% indicates the drawer has reached the end of its scrolling upwards to reveal content.
0 or 0% indicates that there is more scrolling to be done for the drawer to either present more content or to transition to full screen.
- (void)bottomDrawerTopTransitionRatio: (nonnull MDCBottomDrawerPresentationController *) presentationController transitionRatio:(CGFloat)transitionRatio;
the bottom drawer presentation controller.
The transition ratio betwen 0-100% (0-1).