public void setScaleAnimatorValue(final float value) {
            final float old = mScaleFraction;
            mScaleFraction = value;
            if (old != mScaleFraction) {
                invalidateSelf();
            }
        }
Set value as a fraction from 0f to 1f.
android/modules/module_common/src/main/java/github/tornaco/android/thanos/widget/checkable/CheckableFlipDrawable.java