向下滑动，点菜、评论、商家直接移动到了最下方；默认收缩起来的区域直接变到最大，没有滑动的过程

// val effect = adInterpolator.getInterpolation(offset / offsetMax)
// val e: Int = argbEvaluator.evaluate(effect, Color.WHITE, 0xFF646464.toInt()) as Int
// vSearch.setImageDrawable(tintDrawable(drawableSearch, ColorStateList.valueOf(e)))
// vSearch.scaleX = (1 - 0.4 * effect).toFloat()
// vSearch.scaleY = (1 - 0.4 * effect).toFloat()
// vSearch.translationX = -(vSearchBorder.width - vSearch.width + dp(3)) * effect
// vSearchHint.alpha = effect
// vSearchHint.translationX = (vSearchHint.width / 3) * (1 - effect)
if (dy>0&&offset==offsetMax){
return 1F;
}else if (dy<0&&offset==0F){
return 0F;
}
offset+=dy;
if (offset>offsetMax){
offset=offsetMax;
}else if (offset<0){
offset=0F;
}
float effect = adInterpolator.getInterpolation(offset / offsetMax);
int e = (int) argbEvaluator.evaluate(effect,Color.WHITE,Color.parseColor("#999999"));
float kotlinturnjava (int dy){
if (dy>0&&offset==offsetMax){
return 1F;
}else if (dy<0&&offset==0F){
return 0F;
}
offset+=dy;
if (offset>offsetMax){
offset=offsetMax;
}else if (offset<0){
offset=0F;
}
float effect = adInterpolator.getInterpolation(offset / offsetMax);
int e = (int) argbEvaluator.evaluate(effect,Color.WHITE,Color.parseColor("#999999"));
sousuo_img.setImageDrawable(tintDrawable(getResources().getDrawable(R.mipmap.xin_khsousuo),ColorStateList.valueOf(e)));
sousuo_img.setScaleX(Float.parseFloat(String.valueOf(1 - 0.4 * effect)));
sousuo_img.setScaleY(Float.parseFloat(String.valueOf(1 - 0.4 * effect)));
hidesousuolay.setAlpha(effect);
hidesousuolay.setTranslationX(hidesousuolay.getWidth()-hidesousuolay.getWidth()+ DensityUtils.dip2px(NewUseShopActivity.this,3)*effect);
return effect;
}

这个没翻译:
if ((child.translationY < 0 || (child.translationY == 0F && dy > 0)) && !child.canScrollVertically()) {
val effect = layTitle.effectByOffset(dy)
selfView.vSmartTab.setBackgroundColor(argbEvaluator.evaluate(effect, Color.WHITE, 0xFFFAFAFA.toInt()) as Int)
val transY = -simpleTopDistance * effect
if (transY != child.translationY) {
child.translationY = transY
consumed[1] = dy
}

        if (type == 1) {
            isScrollToFullFood = true
        }
    } else if ((child.translationY > 0 || (child.translationY == 0F && dy < 0)) && !child.canScrollVertically()) {
        if (isScrollToFullFood) {
            child.translationY = 0F // top fling to bottom顶到底
        } else {
            child.translationY -= dy
            layContent.effectByOffset(child.translationY)
            laySettle.effectByOffset(child.translationY)
        }
        consumed[1] = dy
    } 

这段怎么用看不懂啊？？？求解