NestedCustomScrollView class
Constructors
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NestedCustomScrollView({Key? key, Axis scrollDirection = Axis.vertical, bool reverse = false, ScrollController? controller, bool? primary, ScrollPhysics? physics, ScrollBehavior? scrollBehavior, bool shrinkWrap = false, Key? center, double anchor = 0.0, double? cacheExtent, List<Widget> slivers = const <Widget>[], int? semanticChildCount, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ScrollViewKeyboardDismissBehavior keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual, String? restorationId, Clip clipBehavior = Clip.hardEdge, HitTestBehavior hitTestBehavior = HitTestBehavior.opaque, bool wantKeepAlive = true})
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const
Properties
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anchor
→ double
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The relative position of the zero scroll offset.
finalinherited
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cacheExtent
→ double?
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The viewport has an area before and after the visible area to cache items
that are about to become visible when the user scrolls.
finalinherited
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center
→ Key?
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The first child in the GrowthDirection.forward growth direction.
finalinherited
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clipBehavior
→ Clip
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The content will be clipped (or not) according to this option.
finalinherited
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controller
→ ScrollController?
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An object that can be used to control the position to which this scroll
view is scrolled.
finalinherited
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dragStartBehavior
→ DragStartBehavior
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Determines the way that drag start behavior is handled.
finalinherited
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hashCode
→ int
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The hash code for this object.
no setterinherited
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hitTestBehavior
→ HitTestBehavior
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Defines the behavior of gesture detector used in this
Scrollable.
finalinherited
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key
→ Key?
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Controls how one widget replaces another widget in the tree.
finalinherited
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keyboardDismissBehavior
→ ScrollViewKeyboardDismissBehavior
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ScrollViewKeyboardDismissBehavior the defines how this ScrollView will
dismiss the keyboard automatically.
finalinherited
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physics
→ ScrollPhysics?
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How the scroll view should respond to user input.
finalinherited
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primary
→ bool?
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Whether this is the primary scroll view associated with the parent
PrimaryScrollController.
finalinherited
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restorationId
→ String?
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Restoration ID to save and restore the scroll offset of the scrollable.
finalinherited
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reverse
→ bool
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Whether the scroll view scrolls in the reading direction.
finalinherited
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runtimeType
→ Type
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A representation of the runtime type of the object.
no setterinherited
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scrollBehavior
→ ScrollBehavior?
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A ScrollBehavior that will be applied to this widget individually.
finalinherited
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scrollDirection
→ Axis
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The Axis along which the scroll view's offset increases.
finalinherited
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semanticChildCount
→ int?
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The number of children that will contribute semantic information.
finalinherited
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shrinkWrap
→ bool
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Whether the extent of the scroll view in the
scrollDirection should be
determined by the contents being viewed.
finalinherited
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slivers
→ List<Widget>
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The slivers to place inside the viewport.
finalinherited
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wantKeepAlive
→ bool
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是否缓存可滚动页面，不缓存可能导致页面在嵌套滚动时被销毁导致手势事件丢失
final
Methods
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build(BuildContext context)
→ Widget
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Describes the part of the user interface represented by this widget.
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buildSlivers(BuildContext context)
→ List<Widget>
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Build the list of widgets to place inside the viewport.
inherited
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buildViewport(BuildContext context, ViewportOffset offset, AxisDirection axisDirection, List<Widget> slivers)
→ Widget
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Build the viewport.
inherited
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createElement()
→ StatelessElement
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Creates a StatelessElement to manage this widget's location in the tree.
inherited
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debugDescribeChildren()
→ List<DiagnosticsNode>
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Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
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debugFillProperties(DiagnosticPropertiesBuilder properties)
→ void
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Add additional properties associated with the node.
inherited
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getDirection(BuildContext context)
→ AxisDirection
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Returns the AxisDirection in which the scroll view scrolls.
inherited
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noSuchMethod(Invocation invocation)
→ dynamic
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Invoked when a nonexistent method or property is accessed.
inherited
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toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style})
→ DiagnosticsNode
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Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
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toString({DiagnosticLevel minLevel = DiagnosticLevel.info})
→ String
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A string representation of this object.
inherited
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toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65})
→ String
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Returns a string representation of this node and its descendants.
inherited
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toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug})
→ String
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Returns a one-line detailed description of the object.
inherited
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toStringShort()
→ String
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A short, textual description of this widget.
inherited
