MRDBottomSheetDelegate Protocol Reference

Conforms to	NSObject
Declared in	MRDBottomSheetProtocols.h

Overview

Delegation to the parent view controller of the sheet or the child view controllers that are placed inside the sheet. This allows them to react to certain adjustments and actions that can come from users.

MRDBottomSheetViewController makes a best effort to position its own view in a way that will not obstruct the keyboard. Position your content within MRDBottomSheetViewController’s view frame.

`– scrollStateDidChangeToEnabled:`

Lets the delegate know the sheet has changed height and if scrolling is suggested to be used within. This allows the delegate to know when they should be locked to avoid interfering with dragging gestures.

- (void)scrollStateDidChangeToEnabled:(BOOL)scrollEnabled

Parameters

`scrollEnabled`	Should enable scroll on any child views.

Declared In

MRDBottomSheetProtocols.h

`– sheetWillDismiss`

Alerts the delegate that the sheet will become hidden.

- (void)sheetWillDismiss

Discussion

Note: When this is called the sheet will still be in the view hierarchy, even if offscreen. Use bottomSheet:didRemoveChild: to be notified when the sheet is no longer in the view hierarchy.

Declared In

MRDBottomSheetProtocols.h

`– sheetDidDismiss`

Alerts the delegate that the sheet has become hidden.

- (void)sheetDidDismiss

Discussion

Note: When this is called the sheet will still be in the view hierarchy, even if offscreen. Use bottomSheet:didRemoveChild: to be notified when the sheet is no longer in the view hierarchy.

Declared In

MRDBottomSheetProtocols.h

`– bottomSheet:willRemoveChild:`

Alerts the delegate that the bottom sheet close button has been clicked. The delegate should respond with YES if the bottom sheet should be dismissed.

- (BOOL)bottomSheet:(nonnull MRDBottomSheetViewController *)sheetViewController willRemoveChild:(nullable MRDBottomSheetAbstractController *)childViewController

Parameters

`sheetViewController`	The BottomSheetViewController parent to childViewController.
`childViewController`	The SheetAbstractController child of sheetViewController.

Declared In

MRDBottomSheetProtocols.h

`– bottomSheet:didRemoveChild:`

The sheet and its child were actually removed from the view hierarchy

- (void)bottomSheet:(nonnull MRDBottomSheetViewController *)sheetViewController didRemoveChild:(nullable MRDBottomSheetAbstractController *)childViewController

Parameters

`sheetViewController`	The BottomSheetViewController parent to childViewController.
`childViewController`	The SheetAbstractController child of sheetViewController.

Declared In

MRDBottomSheetProtocols.h

`– sheetHeightDidChangeToCompletion:`

Alerts the delegate that the height changed to the given height.

- (void)sheetHeightDidChangeToCompletion:(CGFloat)newHeight

Parameters

`newHeight`	The bottom sheet’s new height.

Declared In

MRDBottomSheetProtocols.h

`– snapPointsForContainerBounds:`

Gives the delegate a hook to compute its own snap points, otherwise MRDBottomSheetViewController will make a best effort to determine them.

- (nullable MRDBottomSheetSnapPoints *)snapPointsForContainerBounds:(CGRect)bounds

Parameters

`bounds`	The bounds the sheet is contained within.

Declared In

MRDBottomSheetProtocols.h