Summary: Methods | Inherited Methods

ArgbEvaluator

Kotlin |Java

public final class ArgbEvaluator
extends Object implements TypeEvaluator<Integer>

java.lang.Object
↳	androidx.core.animation.ArgbEvaluator

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

Summary

Public methods
`Integer`	`evaluate(float fraction, Integer startValue, 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 ArgbEvaluator`	`getInstance()` Returns an instance of `ArgbEvaluator` that may be used in `ValueAnimator.setEvaluator(TypeEvaluator)`.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

From interface


        
          androidx.core.animation.TypeEvaluator


        abstract
        
        
        
        
        Integer


      evaluate(float fraction, Integer startValue, 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.

Public methods

evaluate

public Integer evaluate (float fraction, 
                Integer startValue, 
                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
`fraction`	`float`: The fraction from the starting to the ending values
`startValue`	`Integer`: A 32-bit int value representing colors in the separate bytes of the parameter
`endValue`	`Integer`: A 32-bit int value representing colors in the separate bytes of the parameter

Returns
`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 ArgbEvaluator getInstance ()

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

Returns
`ArgbEvaluator`	An instance of `ArgbEvaluator`.