ArgbEvaluator
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 |
Inherited methods | |
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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 Animator
s because it holds no state.
Returns | |
---|---|
ArgbEvaluator |
An instance of ArgbEvaluator .
|