layoutWithoutSize method

void layoutWithoutSize(BoxConstraints constraints, { bool useSize = false, })

Like layout but does not return the child's size, this is usually more efficient because the boxy doesn't need to be laid out when the child's size changes.

If useSize is true, this boxy will re-layout when the child changes size regardless.

See also:

• layout, which does the same but returns a size.
• layoutRect, which positions the child so that it fits in a rect.
• layoutFit, which positions and scales the child given a BoxFit.

Implementation

void layoutWithoutSize(BoxConstraints constraints, {bool useSize = false}) {
  if (_parent.isDryLayout) {
    // Do nothing since the delegate doesn't need a size.
    return;
  }
  _checkConstraints(constraints);
  render.layout(constraints);
}