Package icyllis.modernui.animation

Interface TypeEvaluator<T>

All Known Implementing Classes:
ColorEvaluator
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface TypeEvaluator<T>
Interface for use with the ValueAnimator.setEvaluator(TypeEvaluator) function. Evaluators allow developers to create animations on arbitrary property types, by allowing them to supply custom evaluators for types that are not automatically understood and used by the animation system.
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    evaluate(float fraction, T startValue, T 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.

  • Method Details

    • evaluate

      T evaluate(float fraction, T startValue, T 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 * (x1 - x0), where x0 is startValue, x1 is endValue, and t is fraction.
      Parameters:
      fraction - The fraction from the starting to the ending values
      startValue - The start value.
      endValue - The end value.
      Returns:
      A linear interpolation between the start and end values, given the fraction parameter.