com.nineoldandroids.animation

类 FloatEvaluator

java.lang.Object

com.nineoldandroids.animation.FloatEvaluator

所有已实现的接口:

TypeEvaluator<Number>

public class FloatEvaluator
extends Object
implements TypeEvaluator<Number>

This evaluator can be used to perform type interpolation between float values.

构造器概要

构造器

构造器和说明
FloatEvaluator()

方法概要

限定符和类型	方法和说明
Float	evaluate(float fraction, Number startValue, Number endValue) This function returns the result of linearly interpolating the start and end values, with fraction representing the proportion between the start and end values.

从类继承的方法 java.lang.Object

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

构造器详细资料

FloatEvaluator

public FloatEvaluator()

方法详细资料

evaluate

public Float evaluate(float fraction,
                      Number startValue,
                      Number endValue)

This function returns the result of linearly interpolating the start and end values, with fraction representing the proportion between the start and end values. The calculation is a simple parametric calculation: result = x0 + t * (v1 - v0), where x0 is startValue, x1 is endValue, and t is fraction.

指定者:

evaluate 在接口中 TypeEvaluator<Number>

参数:

fraction - The fraction from the starting to the ending values

startValue - The start value; should be of type float or Float

endValue - The end value; should be of type float or Float

返回:

A linear interpolation between the start and end values, given the fraction parameter.