build method

Implementation

@override
/// Returns an [AnimatedSwitcher] which displays the [title] within a [Text]
/// widget. When the [title] changes, the widget is animated out by sliding
/// upwards and fading out, before the new widget is animated in by sliding
/// downwards and fading in. The animation is curve is a ease-in-out curve.
///
Widget build(final BuildContext context) => AnimatedSwitcher(
  duration: const Duration(milliseconds: 550),
  switchInCurve: Curves.easeInOut,
  switchOutCurve: Curves.easeInOut,
  transitionBuilder:
      (final Widget child, final Animation<double> animation) =>
          SlideTransition(
            position: Tween<Offset>(
              begin: const Offset(0, 1),
              end: Offset.zero,
            ).animate(animation),
            child: FadeTransition(opacity: animation, child: child),
          ),
  child: Text(
    title,
    key: ValueKey<String>(title),
    style: AppTextStyle(context).headline2.copyWith(color: Colors.white),
  ),
);