BouncingScrollSimulation class

An implementation of scroll physics that matches iOS.

See also:

Inheritance

Constructors

BouncingScrollSimulation({required double position, required double velocity, required double leadingExtent, required double trailingExtent, required SpringDescription spring, double constantDeceleration = 0, Tolerance tolerance = Tolerance.defaultTolerance})
Creates a simulation group for scrolling on iOS, with the given parameters.

Properties

hashCode → int
The hash code for this object.
no setterinherited
leadingExtent → double
When x falls below this value the simulation switches from an internal friction model to a spring model which causes x to "spring" back to leadingExtent.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
spring → SpringDescription
The spring used to return x to either leadingExtent or trailingExtent.
final
tolerance ↔ Tolerance
How close to the actual end of the simulation a value at a particular time must be before isDone considers the simulation to be "done".
getter/setter pairinherited
trailingExtent → double
When x exceeds this value the simulation switches from an internal friction model to a spring model which causes x to "spring" back to trailingExtent.
final

Methods

dx(double time) → double
The velocity of the object in the simulation at the given time.
override
isDone(double time) → bool
Whether the simulation is "done" at the given time.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override
x(double time) → double
The position of the object in the simulation at the given time.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Constants

maxSpringTransferVelocity → const double
The maximum velocity that can be transferred from the inertia of a ballistic scroll into overscroll.