FittedBox constructor Null safety

const FittedBox(
  1. {Key? key,
  2. BoxFit fit = BoxFit.contain,
  3. AlignmentGeometry alignment = Alignment.center,
  4. Clip clipBehavior = Clip.none,
  5. Widget? child}
)

Creates a widget that scales and positions its child within itself according to fit.

The fit and alignment arguments must not be null.

Implementation

const FittedBox({
  super.key,
  this.fit = BoxFit.contain,
  this.alignment = Alignment.center,
  this.clipBehavior = Clip.none,
  super.child,
}) : assert(fit != null),
     assert(alignment != null),
     assert(clipBehavior != null);