UnderlineTabIndicator constructor Null safety

const UnderlineTabIndicator(
  1. {BorderSide borderSide = const BorderSide(width: 2.0, color: Colors.white),
  2. EdgeInsetsGeometry insets = EdgeInsets.zero}
)

Create an underline style selected tab indicator.

The borderSide and insets arguments must not be null.

Implementation

const UnderlineTabIndicator({
  this.borderSide = const BorderSide(width: 2.0, color: Colors.white),
  this.insets = EdgeInsets.zero,
}) : assert(borderSide != null),
     assert(insets != null);