CupertinoUserInterfaceLevelModifier class
Establishes a subtree in which CupertinoUserInterfaceLevel.of resolves to the given data.
Querying the current elevation status using CupertinoUserInterfaceLevel.of will cause your widget to rebuild automatically whenever the CupertinoUserInterfaceLevelData changes.
If no CupertinoUserInterfaceLevel is in scope then the CupertinoUserInterfaceLevel.of method will throw an exception. Alternatively, CupertinoUserInterfaceLevel.maybeOf can be used, which returns null instead of throwing if no CupertinoUserInterfaceLevel is in scope.
See also:
- CupertinoUserInterfaceLevelData, specifies the visual level for the content in the subtree CupertinoUserInterfaceLevel established.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- SingleChildStatelessModifier
- CupertinoUserInterfaceLevelModifier
- Available extensions
Constructors
- CupertinoUserInterfaceLevelModifier({Key? key, Widget? child, Key? modifierKey, required CupertinoUserInterfaceLevelData data})
-
Creates a CupertinoUserInterfaceLevel to change descendant Cupertino widget's
visual level.
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- modifierKey → Key?
-
The actual key of the widget, which Modifier wrapped
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
inherited
-
buildWithChild(
BuildContext context, Widget? child) → Widget -
A build method that receives an extra
childparameter.override -
createElement(
) → SingleChildStatelessElement -
Create a SingleChildStatelessElement
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent 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
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited