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DropdownMenuButtonBuilder<T> typedef
DropdownMenuButtonBuilder<T> typedef
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DropdownMenuButtonBuilder<
T
>
typedef
DropdownMenuButtonBuilder
<
T
> =
Widget
Function
(
T?
value
,
Widget
?
icon
)
初始化 默认显示的Widget
Implementation
typedef DropdownMenuButtonBuilder<T> = Widget Function(T? value, Widget? icon);
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DropdownMenuButtonBuilder<T> typedef
universally library