<itemvalue="A builder to customize the dropdown buttons corresponding to the [DropdownMenuItem]s in [items]. When a [DropdownMenuItem] is selected, the widget that will be displayed from the list corresponds to the [DropdownMenuItem] of the same index in [items]. {@tool dartpad} This sample shows a `DropdownButton` with a button with [Text] that corresponds to but is unique from [DropdownMenuItem]. See code in examplesapilibmaterialdropdowndropdown_button.selected_item_builder.0.dart {@end-tool} If this callback is null, the [DropdownMenuItem] from [items] that matches [value] will be displayed."/>
<itemvalue="Creates a const [DropdownMenu]. The leading and trailing icons in the text field can be customized by using [leadingIcon], [trailingIcon] and [selectedTrailingIcon] properties. They are passed down to the [InputDecoration] properties, and will override values in the [InputDecoration.prefixIcon] and [InputDecoration.suffixIcon]. Except leading and trailing icons, the text field can be configured by the [InputDecorationTheme] property. The menu can be configured by the [menuStyle]."/>
<itemvalue="This class handles how to add multiple borders together. Subclasses define various shapes, like circles ([CircleBorder]), rounded rectangles ([RoundedRectangleBorder]), continuous rectangles ([ContinuousRectangleBorder]), or beveled rectangles ([BeveledRectangleBorder])."/>
<itemvalue="A rectangular border with flattened or "beveled" corners. The line segments that connect the rectangle's four sides will begin and at locations offset by the corresponding border radius, but not farther than the side's center. If all the border radii exceed the sides' half widthsheights the resulting shape is diamond made by connecting the centers of the sides."/>
@ -61,13 +62,12 @@
<itemvalue="timbres"/>
<itemvalue="Make this message read-only. Marks this message, and any sub-messages, as read-only."/>