BouncingScrollSimulation class Null safety
An implementation of scroll physics that matches iOS.
See also:
- ClampingScrollSimulation, which implements Android scroll physics.
- Inheritance
-
- Object
- Simulation
- BouncingScrollSimulation
Constructors
- BouncingScrollSimulation({required double position, required double velocity, required double leadingExtent, required double trailingExtent, required SpringDescription spring, 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.
read-onlyinherited
- 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.
read-onlyinherited
- 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".
read / writeinherited
- 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 non-existent 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.
5000.0