PageChangedListener class
A widget which wraps NotificationListener for PageView or TabBarView, to overwrite the behavior of these widgets' onPageChanged callback.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- PageChangedListener
Constructors
-
PageChangedListener({Key? key, required Widget child, int? initialPage, ValueChanged<
int> ? onPageChanged, ValueChanged<PageMetrics> ? onPageMetricsChanged, bool callPageChangedAtEnd = true}) -
const
Properties
- callPageChangedAtEnd → bool
-
The flag to call onPageChanged when page changing is finished, defaults to true, and this
means it will behave the same as builtin PageView.
final
- child → Widget
-
The widget below this widget in the tree.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- initialPage → int?
-
The initial page value which is used to initialize the last reported page only for checking
onPageChanged. It is suggested to initialize to PageController.initialPage, defaults to 0.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onPageChanged
→ ValueChanged<
int> ? -
The callback that will be invoked when the current page changed, and its invoking timing
also depends on callPageChangedAtEnd.
final
-
onPageMetricsChanged
→ ValueChanged<
PageMetrics> ? -
The callback that will be invoked when PageMetrics changed, and callPageChangedAtEnd
has no influence on this callback.
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< PageChangedListener> -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects 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