SynthizerScope class
A widget which holds and maintains the life cycle of synthizer objects.
There must be one and only one instance of this widget, and it must be placed as close to the top of the widget tree as possible, in particular, above the MaterialApp widget.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- SynthizerScope
Constructors
- SynthizerScope({required Widget child, int bufferCacheMaxSize = gigabyte, String? synthizerFilename, Key? key})
-
Create an instance.
const
Properties
- bufferCacheMaxSize → int
-
The maximum size of the buffer cache to use.
final
- child → Widget
-
The widget below this widget in the tree.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- synthizerFilename → String?
-
The path where the synthizer library will be loaded.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → SynthizerScopeState -
Create state for this widget.
override
-
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, int wrapWidth = 65}) → 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
Static Methods
-
maybeOf(
BuildContext context) → SynthizerScopeState? - Possibly return the nearest instance.
-
of(
BuildContext context) → SynthizerScopeState - Return the nearest instance.