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References
| Module | Slate |
| Header | /Engine/Source/Runtime/Slate/Public/Framework/Layout/InertialScrollManager.h |
| Include | #include "Framework/Layout/InertialScrollManager.h" |
Syntax
class FInertialScrollManager
Remarks
A helper class to calculate inertial scrolling. This class combines a percentage of velocity lost per second coupled with a static amount of velocity lost per second in order to achieve a quick decay when the velocity grows small enough, and the percentage of friction lost prevents large velocities from scrolling forever.
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
FInertialScrollManager
(
double SampleTimeout |
Constructor |
Functions
| Type | Name | Description | |
|---|---|---|---|
 |
void | AddScrollSample
(
float Delta, |
Adds a scroll velocity sample to help calculate a smooth velocity |
 |
void | Instantly end the inertial scroll | |
  |
float | Gets the calculated velocity of the scroll. | |
 |
void | UpdateScrollVelocity
(
const float InDeltaTime |
Updates the current scroll velocity. Call every frame. |
Constants
| Name | Description |
|---|---|
| FrictionCoefficient | This is the percentage of velocity loss per second. |
| StaticVelocityDrag | This is a constant amount of velocity lost per second. |