build method

@override Widget build(BuildContext context)

The function builds a widget based on the current width of the screen, either a Row or a Column, depending on the conditions specified.

Args: context (BuildContext): The BuildContext object represents the location of a widget within the widget tree. It is typically used to access the theme, media query, and other information about the current context.

Returns: The code is returning a widget based on the conditions specified. If the condition rowWhen.call(currentWidth) is true, it returns a Row widget with the specified properties. If the condition colWhen.call(currentWidth) is true, it returns a Column widget with the specified properties. If neither condition is true, it throws an exception with the message 'No conditions satisfied.'

Implementation

@override
Widget build(BuildContext context) {
  final currentWidth = MediaQuery.of(context).size.width;
  final bool isRow = rowWhen.call(currentWidth);
  final bool isCol = colWhen.call(currentWidth);

  /// The code snippet is checking if the condition specified by the `rowWhen` function is true. If
  /// the condition is true, it returns a `Row` widget with the specified properties. The properties
  /// include the `mainAxisAlignment`, `crossAxisAlignment`, `mainAxisSize`, `textBaseline`,
  /// `textDirection`, `verticalDirection`, `key`, and `children`. These properties determine how the
  /// children widgets will be arranged within the `Row` widget.
  if (isRow) {
    return Row(
      mainAxisAlignment: rowMainAxisAlignment,
      crossAxisAlignment: rowCrossAxisAlignment,
      mainAxisSize: rowMainAxisSize,
      textBaseline: rowTextbaseline,
      textDirection: rowTextDirection,
      verticalDirection: rowVerticalDirection,
      key: rowKey,
      children: children.call(isRow, isCol),
    );
  }

  /// The function returns a Column widget with specified properties and children if a condition is
  /// met.
  ///
  /// Args:
  ///   currentWidth (colWhen): The current width of the screen or container.
  ///
  /// Returns:
  ///   A Column widget is being returned.
  else if (isCol) {
    return Column(
      mainAxisAlignment: colMainAxisAlignment,
      crossAxisAlignment: colCrossAxisAlignment,
      mainAxisSize: colMainAxisSize,
      textBaseline: colTextbaseline,
      textDirection: colTextDirection,
      verticalDirection: colVerticalDirection,
      key: colKey,
      children: children.call(isRow, isCol),
    );
  }

  /// The `else` block with the `throw Exception('No conditions satisfied.')` statement is executed
  /// when neither the `rowWhen` condition nor the `colWhen` condition is true. It throws an
  /// exception with the message 'No conditions satisfied.' to indicate that none of the conditions
  /// for arranging the children in either a row or column form is satisfied. This can be useful for
  /// debugging or handling cases where the widget should not be rendered if certain conditions are
  /// not met.
  else {
    throw Exception('No conditions satisfied.');
  }
}