ScrollAction class
An Action that scrolls the Scrollable that encloses the current primaryFocus by the amount configured in the ScrollIntent given to it.
If Scrollable.incrementCalculator is null for the scrollable, the default for a ScrollIntent.type set to ScrollIncrementType.page is 80% of the size of the scroll window, and for ScrollIncrementType.line, 50 logical pixels.
Constructors
- ScrollAction()
- Creates a const ScrollAction.
Properties
Methods
-
invoke(
FocusNode node, covariant ScrollIntent intent ) → void -
Called when the action is to be performed. [...]
override
-
debugFillProperties(
DiagnosticPropertiesBuilder properties ) → void -
Add additional properties associated with the node. [...]
inherited
-
noSuchMethod(
Invocation invocation ) → dynamic -
Invoked when a non-existent 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 -
Returns a string representation of this object.
inherited
-
toStringShort(
) → String -
A brief description of this object, usually just the runtimeType and the
hashCode.
inherited
Operators
-
operator ==(
dynamic other ) → bool -
The equality operator. [...]
inherited
Constants
- key → const LocalKey
-
The LocalKey that uniquely connects this action to a ScrollIntent.
const ValueKey<Type>(ScrollAction)