RectEvaluator

Kotlin |Java

class RectEvaluator : TypeEvaluator

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

Summary

Public constructors
`RectEvaluator()` Construct a RectEvaluator that returns a new Rect on every evaluate call.
`RectEvaluator(reuseRect: Rect)` Constructs a RectEvaluator that modifies and returns `reuseRect` in `evaluate` calls.

Public functions
`Rect`	`evaluate(fraction: Float, startValue: Rect, endValue: Rect)` This function returns the result of linearly interpolating the start and end Rect values, with `fraction` representing the proportion between the start and end values.

Public constructors

RectEvaluator

RectEvaluator()

Construct a RectEvaluator that returns a new Rect on every evaluate call. To avoid creating an object for each evaluate call, RectEvaluator should be used whenever possible.

RectEvaluator

RectEvaluator(reuseRect: Rect)

Constructs a RectEvaluator that modifies and returns reuseRect in evaluate calls. The value returned from evaluate should not be cached because it will change over time as the object is reused on each call.

Parameters
`reuseRect: Rect`	A Rect to be modified and returned by evaluate.

Public functions

evaluate

fun evaluate(fraction: Float, startValue: Rect, endValue: Rect): Rect

This function returns the result of linearly interpolating the start and end Rect values, with fraction representing the proportion between the start and end values. The calculation is a simple parametric calculation on each of the separate components in the Rect objects (left, top, right, and bottom).

If RectEvaluator was used to construct this RectEvaluator, the object returned will be the reuseRect passed into the constructor.

Parameters
`fraction: Float`	The fraction from the starting to the ending values
`startValue: Rect`	The start Rect
`endValue: Rect`	The end Rect

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