ArgbEvaluator

Kotlin |Java

public final class ArgbEvaluator implements TypeEvaluator

This evaluator can be used to perform type interpolation between integer values that represent ARGB colors.

Summary

Public methods
`@NonNull Integer`	`evaluate( float fraction, @NonNull Integer startValue, @NonNull Integer endValue )` This function returns the calculated in-between value for a color given integers that represent the start and end values in the four bytes of the 32-bit int.
`static @NonNull ArgbEvaluator`	`getInstance()` Returns an instance of `ArgbEvaluator` 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 calculated in-between value for a color given integers that represent the start and end values in the four bytes of the 32-bit int. Each channel is separately linearly interpolated and the resulting calculated values are recombined into the return value.

Parameters
`float fraction`	The fraction from the starting to the ending values
`@NonNull Integer startValue`	A 32-bit int value representing colors in the separate bytes of the parameter
`@NonNull Integer endValue`	A 32-bit int value representing colors in the separate bytes of the parameter

Returns
`@NonNull Integer`	A value that is calculated to be the linearly interpolated result, derived by separating the start and end values into separate color channels and interpolating each one separately, recombining the resulting values in the same way.

getInstance

public static @NonNull ArgbEvaluator getInstance()

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

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