CountDown class
倒计时
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- CountDown
- Available extensions
Constructors
-
CountDown({Key? key, Duration duration = const Duration(seconds: 5), ValueChanged<
int> ? onChanged, required CountDownBuilder builder, int periodic = 1000, CountDownType type = CountDownType.seconds}) -
const
Properties
- builder → CountDownBuilder
-
UI 回调
final
- duration → Duration
-
倒计时时间
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onChanged
→ ValueChanged<
int> ? -
final
- periodic → int
-
定时 依据
countDownTypefinal - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- type → CountDownType
-
倒计时 类型
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< CountDown> -
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}) → 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