MMMPreferredSizeChanges

Objective-C

@protocol MMMPreferredSizeChanges <NSObject>

Swift

protocol MMMPreferredSizeChanges : NSObjectProtocol

A view supporting this will be notified when one of the child views indicates potential changes in its contents that might influence its size via mmm_setPreferredSizeCouldChange.

This is handy with views that do not fully rely on Auto Layout, like UITableView, where a change in the size of a cell would require it to reload this cell.

The implementation is responsible for coalescing notification and avoiding notification loops.


                    
                    
                    -mmm_preferredSizeCouldChangeForSubview:

Undocumented

Declaration

Objective-C

- (void)mmm_preferredSizeCouldChangeForSubview:(UIView *)subview;

Swift

func mmm_preferredSizeCouldChange(forSubview subview: UIView)