FadeTransition constructor

const FadeTransition(
  1. {Key key,
  2. @required Animation<double> opacity,
  3. bool alwaysIncludeSemantics: false,
  4. Widget child}
)

Creates an opacity transition.

The opacity argument must not be null.

Implementation

const FadeTransition({
  Key key,
  @required this.opacity,
  this.alwaysIncludeSemantics = false,
  Widget child,
}) : assert(opacity != null),
     super(key: key, child: child);