ej.motion.util

Class TossHelper

java.lang.Object

ej.motion.util.TossHelper

public class TossHelper
extends Object

Helper to simulate quick user swipes.

A swipe is when a user presses, moves quickly, then releases. This helper helps to continue the dynamic of this movement. It needs to be coupled with a motion depending on the expected effect.

Method Summary

Modifier and Type	Method and Description
static int	computeExpectedStop(int start, float speed, long duration) Computes the expected stop considering the start value and the initial speed.
static int	computeStop(int start, int[] steps, float speed, long duration) Chooses the nearest step as stop.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

computeExpectedStop

public static int computeExpectedStop(int start,
                                      float speed,
                                      long duration)

Computes the expected stop considering the start value and the initial speed.

Parameters:

start - the start value.

speed - the initial speed.

duration - the expected duration.

Returns:

the expected stop.

computeStop

public static int computeStop(int start,
                              int[] steps,
                              float speed,
                              long duration)

Chooses the nearest step as stop.

Parameters:

start - the start value.

steps - the steps values.

speed - the initial speed.

duration - the expected duration.

Returns:

the step to stop at.