HarmonyOS 目前是否支持截长屏（长列表场景）？

目前的截长屏方案如下：

遍历scrollview的child进行draw从而达到截长屏的目前，HarmonyOS 上如何遍历scrollview的child并进行绘制，目前是否有类似能力。

final Point resolution = new Point(width, height);
Bitmap bitmap = getBitmapForScreenshot(width, height);
Canvas canvas = new Canvas(bitmap);
Drawable bgDrawable = view.getBackground();
if (bgDrawable != null) {
  bgDrawable.draw(canvas);
} else {
  canvas.drawColor(Color.WHITE);
}
if (view instanceof ScrollView) {
  int childCount = ((ScrollView) view).getChildCount();
  for (int i = 0; i < childCount; i++) {
    ((ScrollView) view).getChildAt(i).draw(canvas);
  }
} else {
  view.draw(canvas);
}