willReorderHandler
The handler that prepares the diffable data source for reordering its items.
Declaration
@property (nonatomic, copy) void (^willReorderHandler)(NSDiffableDataSourceTransaction<id,id> *);The handler that prepares the diffable data source for reordering its items.
@property (nonatomic, copy) void (^willReorderHandler)(NSDiffableDataSourceTransaction<id,id> *);