INNER CODE UNIT · Dart

ParallaxContainer

best-flutter/transformer_page_view · lib/parallax.dart:102

class ParallaxContainer extends StatelessWidget {
  final Widget child;
  final double position;
  final double translationFactor;
  final double opacityFactor;

  ParallaxContainer(
      {@required this.child,
      @required this.position,
      this.translationFactor: 100.0,
      this.opacityFactor: 1.0})
      : assert(position != null),
        assert(translationFactor != null);

  @override
  Widget build(BuildContext context) {
    return Opacity(
      opacity: (1 - position.abs()).clamp(0.0, 1.0) * opacityFactor,

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