FlexibleSpaceBarSettings class

Provides sizing and opacity information to a FlexibleSpaceBar.

See also:

Inheritance

Constructors

FlexibleSpaceBarSettings({Key key, double toolbarOpacity, double minExtent, double maxExtent, @required double currentExtent, @required Widget child })
Creates a Flexible Space Bar Settings widget. [...]
const

Properties

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
maxExtent double
Maximum height of the resulting FlexibleSpaceBar when fully expanded.
final
minExtent double
Minimum height of the resulting FlexibleSpaceBar when fully collapsed.
final
toolbarOpacity double
Affects how transparent the text within the toolbar appears.
final
child Widget
The widget below this widget in the tree. [...]
final, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
key Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

updateShouldNotify(covariant FlexibleSpaceBarSettings oldWidget) bool
Whether the framework should notify widgets that inherit from this widget. [...]
override
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, inherited
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.debug }) String
Returns 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

Operators

operator ==(dynamic other) bool
The equality operator. [...]
inherited