A scroll behavior that lets the user scroll beyond the scroll bounds only when the bounds are disjoint.

Inheritance

Constructors

OverscrollWhenScrollableBehavior({double contentExtent: double.INFINITY, double containerExtent: 0.0, double minScrollOffset: 0.0, @required TargetPlatform platform })

Creates a scroll behavior that allows overscrolling only when some amount of scrolling is already possible.

Properties

isScrollable bool

read-only
containerExtent double

The linear extent of the exterior of the scrollable widget.

read-only, inherited
contentExtent double

The linear extent of the content inside the scrollable widget.

read-only, inherited
hashCode int

Get a hash code for this object.

read-only, inherited
maxScrollOffset double

read-only, inherited
minScrollOffset double

read-only, inherited
platform TargetPlatform

The platform for which physics constants should be approximated.

read-only, inherited
runtimeType Type

A representation of the runtime type of the object.

read-only, inherited

Operators

operator ==(other) bool

The equality operator.

inherited

Methods

applyCurve(double scrollOffset, double scrollDelta) double

Returns the scroll offset to use when the user attempts to scroll from the given offset by the given delta.

createScrollSimulation(double position, double velocity) Simulation

Returns a simulation that propels the scrollOffset.

createSnapScrollSimulation(double startOffset, double endOffset, double startVelocity, double endVelocity) Simulation

Returns an animation that ends at the snap offset.

inherited
debugFillDescription(List<String> description) → void

Accumulates a list of strings describing the current node's fields, one field per string. Subclasses should override this to have their information included in toString.

inherited
noSuchMethod(Invocation invocation) → dynamic

Invoked when a non-existent method or property is accessed.

inherited
toString() String

Returns a string representation of this object.

inherited
updateExtents({double contentExtent, double containerExtent, double minScrollOffset, double scrollOffset: 0.0 }) double

Updates either content or container extent (or both)

inherited