SecondaryHeader class abstract

Secondary header. Combine existing Header with secondary.

Inheritance

• Object
• Indicator
• Header
• SecondaryHeader

Constructors

SecondaryHeader({required Header header, required double secondaryTriggerOffset, double secondaryVelocity = kDefaultSecondaryVelocity, double? secondaryDimension, double secondaryCloseTriggerOffset = kDefaultSecondaryCloseTriggerOffset, IndicatorStateListenable? listenable})

Properties

clamping → bool

Hold to keep the Scrollable from going out of bounds.

final, inherited

frictionFactor → FrictionFactor?

Friction factor when list is out of bounds. See BouncingScrollPhysics.frictionFactor.

final, inherited

hapticFeedback → bool

Whether to enable haptic feedback.

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

header → Header

Existing Header.

final

hitOver → bool

Hit boundary over. When the Scrollable scrolls by itself, is it out of bounds. When clamping is false, it takes effect.

final, inherited

horizontalFrictionFactor → FrictionFactor?

Horizontal friction factor when list is out of bounds. See BouncingScrollPhysics.frictionFactor.

final, inherited

horizontalReadySpringBuilder → SpringBuilder?

Horizontal spring effect when the mode is IndicatorMode.ready.

final, inherited

horizontalSpring → SpringDescription?

Horizontal spring effect when scrollable goes back.

final, inherited

infiniteHitOver → bool

Infinite scroll hits out of bounds. When the Scrollable scrolls by itself, whether the infinite scroll is out of bounds. When clamping is false, it takes effect.

final, inherited

infiniteOffset → double?

Infinite scroll trigger offset. The relative offset of the Scrollable from the bounds (>= 0) When null, no infinite scroll.

final, inherited

listenable → IndicatorStateListenable?

Indicator state listenable. Monitor state changes in real time.

final, inherited

maxOverOffset → double

Maximum overscroll offset, will no longer scroll. When double.infinity, no limit.

final, inherited

notifyWhenInvisible → bool

Notify when invisible. When IndicatorNotifier.offset < 0, scrolling will also trigger notification. This might have extra performance overhead, but it's very useful when you need it.

final, inherited

position → IndicatorPosition

The position of the indicator.

final, inherited

processedDuration → Duration

Task completion delay. IndicatorMode.processed duration of state.

final, inherited

readySpringBuilder → SpringBuilder?

Spring effect when the mode is IndicatorMode.ready.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

safeArea → bool

Whether to calculate the safe area.

final, inherited

secondaryCloseTriggerOffset → double

Secondary close trigger offset.

final, inherited

secondaryDimension → double?

Dimension of the second floor. The default value is ScrollMetrics.viewportDimension.

final, inherited

secondaryTriggerOffset → double?

Trigger offset for secondary. The indicator will expand and fill the scrollview area. Will not trigger when null.

final, inherited

secondaryVelocity → double

Secondary opening speed.

final, inherited

spring → SpringDescription?

Spring effect when scrollable goes back.

final, inherited

springRebound → bool

Whether the spring can rebound. Only works with readySpringBuilder.

final, inherited

triggerOffset → double

The offset of the trigger task.

final, inherited

triggerWhenReach → bool

Trigger immediately when reaching the triggerOffset.

final, inherited

triggerWhenRelease → bool

Over triggerOffset, the release triggers immediately.

final, inherited

triggerWhenReleaseNoWait → bool

Over triggerOffset, the release triggers immediately. No need to wait for task execution to complete, generally used for non-asynchronous events or external custom indicators.

final, inherited

Methods

build(BuildContext context, IndicatorState state) → Widget

Build indicator widget.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

secondaryBuild(BuildContext context, IndicatorState state, Indicator indicator) → Widget

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited