marginEnd method

ContainerBuilder marginEnd(
  1. double value
)

margin-end / me-{size} -> 设置结束方向的外边距（LTR 时为 right，RTL 时为 left）

Implementation

ContainerBuilder marginEnd(double value) {
  if (_margin == null) {
    _margin = EdgeInsetsDirectional.only(end: value);
  } else if (_margin is EdgeInsetsDirectional) {
    final existing = _margin as EdgeInsetsDirectional;
    _margin = EdgeInsetsDirectional.only(
      start: existing.start,
      top: existing.top,
      end: existing.end + value,
      bottom: existing.bottom,
    );
  } else if (_margin is EdgeInsets) {
    // 如果之前使用的是 EdgeInsets，转换为 EdgeInsetsDirectional
    final existing = _margin as EdgeInsets;
    _margin = EdgeInsetsDirectional.only(
      start: existing.left,
      top: existing.top,
      end: value,
      bottom: existing.bottom,
    );
  }
  return this;
}