FlexibleSpaceBarSettings class Null safety

Provides sizing and opacity information to a FlexibleSpaceBar.

Constructors

FlexibleSpaceBarSettings({Key? key, required double toolbarOpacity, required double minExtent, required double maxExtent, required double currentExtent, required Widget child, bool? isScrolledUnder}): Creates a Flexible Space Bar Settings widget.
const

child → Widget: The widget below this widget in the tree.
finalinherited
currentExtent → double: If the FlexibleSpaceBar.title or the FlexibleSpaceBar.background is not null, then this value is used to calculate the relative scale of these elements upon initialization.
final
hashCode → int: The hash code for this object.
nonVirtual">@nonVirtualread-onlyinherited
isScrolledUnder → bool?: True if the FlexibleSpaceBar overlaps the primary scrollable's contents.
final
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
maxExtent → double: Maximum height of the resulting FlexibleSpaceBar when fully expanded.
final
minExtent → double: Minimum height of the resulting FlexibleSpaceBar when fully collapsed.
final
runtimeType → Type: A representation of the runtime type of the object.
read-onlyinherited
toolbarOpacity → double: Affects how transparent the text within the toolbar appears.
final

createElement() → InheritedElement: Inflates this configuration to a concrete instance.
inherited
debugDescribeChildren() → List<DiagnosticsNode>: Returns a list of DiagnosticsNode objects describing this node's children.
protected">@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String: A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String: Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String: Returns a one-line detailed description of the object.
inherited
toStringShort() → String: A short, textual description of this widget.
inherited
updateShouldNotify(covariant FlexibleSpaceBarSettings oldWidget) → bool: Whether the framework should notify widgets that inherit from this widget.
override

operator ==(Object other) → bool: The equality operator.
nonVirtual">@nonVirtualinherited