VolumeWatcher class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- VolumeWatcher
Constructors
- VolumeWatcher({Key? key, required dynamic onVolumeChangeListener(double), Widget? child})
Properties
- child → Widget?
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onVolumeChangeListener → dynamic Function(double)
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< StatefulWidget> -
Creates the mutable state for this widget at a given location in the tree.
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 Properties
-
getCurrentVolume
→ Future<
double> -
no setter
-
getMaxVolume
→ Future<
double> -
no setter
- hideVolumeView ← bool
-
隐藏音量面板
仅ios有效
no getter
-
platformVersion
→ Future<
String> -
no setter
Static Methods
-
addListener(
Function? onEvent) → int? - 添加监听器 返回id, 用于删除监听器使用
-
removeListener(
int? id) → void - 删除监听器
-
setVolume(
double volume) → Future< bool>
Constants
- eventChannel → const EventChannel
- methodChannel → const MethodChannel