<itemvalue="A set of [LogicalKeyboardKey]s that, when any or all are pressed in combination with a [PointerDeviceKind.mouse] pointer scroll event, will flip the axes of the scroll input. This will for example, result in the input of a vertical mouse wheel, to move the [ScrollPosition] of a [ScrollView] with an [Axis.horizontal] scroll direction. If other keys exclusive of this set are pressed during a scroll event, in conjunction with keys from this set, the scroll input will still be flipped. Defaults to [LogicalKeyboardKey.shiftLeft], [LogicalKeyboardKey.shiftRight]."/>
<itemvalue="{@macro flutter.gestures.monodrag.DragGestureRecognizer.multitouchDragStrategy} By default, [MultitouchDragStrategy.latestPointer] is configured to create drag gestures for non-Apple platforms, and [MultitouchDragStrategy.averageBoundaryPointers] for Apple platforms."/>
<itemvalue="The device kinds that the scrollable will accept drag gestures from. By default only [PointerDeviceKind.touch], [PointerDeviceKind.stylus], and [PointerDeviceKind.invertedStylus] are configured to create drag gestures. Enabling this for [PointerDeviceKind.mouse] will make it difficult or impossible to select text in scrollable containers and is not recommended."/>
<itemvalue="可见的"/>
<itemvalue="visiable"/>
<itemvalue="Called when a [ScrollPosition] is attached to the scroll controller. Since a scroll position is not attached until a [Scrollable] is actually built, this can be used to respond to a new position being attached. At the time that a scroll position is attached, the [ScrollMetrics], such as the [ScrollMetrics.maxScrollExtent], are not yet available. These are not determined until the [Scrollable] has finished laying out its contents and computing things like the full extent of that content. [ScrollPosition.hasContentDimensions] can be used to know when the metrics are available, or a [ScrollMetricsNotification] can be used, discussed further below. {@tool dartpad} This sample shows how to apply a listener to the [ScrollPosition.isScrollingNotifier] using [ScrollController.onAttach]. This is used to change the [AppBar]'s color when scrolling is occurring. See code in examplesapilibwidgetsscroll_positionscroll_controller_on_attach.0.dart {@end-tool}"/>
@ -65,13 +68,10 @@
<itemvalue="The type of default menu this is. See [PlatformProvidedMenuItemType] for the different types available. Not all of the types will be available on every platform. Use [hasMenu] to determine if the current platform has a given default menu item. If the platform does not support the given [type], then the menu item will throw an [ArgumentError] in debug mode."/>
<itemvalue="inverted stylus"/>
<itemvalue="stylus"/>
<itemvalue="Distance in proportion of the viewport's main axis length from the leading edge of the viewport to the trailing edge of the item. May be greater than one if the item is partially visible."/>
<itemvalue="Distance in proportion of the viewport's main axis length from the leading edge of the viewport to the leading edge of the item. May be negative if the item is partially visible."/>
<itemvalue="The position of items that are at least partially visible in the viewport."/>