IntEvaluator

Kotlin |Java

public class IntEvaluator implements TypeEvaluator

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

Summary

Public methods
`@NonNull Integer`	`evaluate( float fraction, @NonNull Integer startValue, @NonNull Integer 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.
`static @NonNull IntEvaluator`	`getInstance()` Returns an instance of `IntEvaluator` that may be used in `setEvaluator`.

Public methods

evaluate

public @NonNull Integer evaluate(
    float fraction,
    @NonNull Integer startValue,
    @NonNull Integer 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
`float fraction`	The fraction from the starting to the ending values
`@NonNull Integer startValue`	The start value; should be of type `int` or `Integer`
`@NonNull Integer endValue`	The end value; should be of type `int` or `Integer`

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

getInstance

public static @NonNull IntEvaluator getInstance()

Returns an instance of IntEvaluator that may be used in setEvaluator. The same instance may be used in multiple Animators because it holds no state.

Returns
`@NonNull IntEvaluator`	An instance of `IntEvaluator`.