SearchCallback<T> typedef

SearchCallback<T> = int? Function(List<DropdownMenuEntry<T>> entries, String query)

A callback function that returns the index of the item that matches the current contents of a text field.

If a match doesn't exist then null must be returned.

Used by DropdownMenu.searchCallback.

Implementation

typedef SearchCallback<T> = int? Function(List<DropdownMenuEntry<T>> entries, String query);