bool _handleScrollNotification(ScrollNotification notification)
{
ScrollMetrics metrics = notification.metrics;
if (metrics.maxScrollExtent <= metrics.minScrollExtent)
{
return(false);
}
if (notification is ScrollUpdateNotification ||
notification is OverscrollNotification)
{
if (_fadeoutAnimationController.status != AnimationStatus.forward)
{
_fadeoutAnimationController.forward();
}
_fadeoutTimer?.cancel();
_painter.update(notification.metrics, notification.metrics.axisDirection);
}
else if (notification is ScrollEndNotification)
{
if (_dragScrollbarPositionY == null)
{
_startFadeoutTimer();
}
}
return(false);
}
bool _handleScrollNotification(ScrollNotification notification)
{
ScrollMetrics metrics = notification.metrics;
if (metrics.maxScrollExtent <= metrics.minScrollExtent)
{
return(false);
}
if (!_useCupertinoScrollbar.Value &&
(notification is ScrollUpdateNotification ||
notification is OverscrollNotification))
{
if (_fadeoutAnimationController.status != AnimationStatus.forward)
{
_fadeoutAnimationController.forward();
}
_materialPainter.update(
notification.metrics,
notification.metrics.axisDirection
);
if (!widget.isAlwaysShown)
{
_fadeoutTimer?.cancel();
_fadeoutTimer = Timer.create(ScrollbarUtils._kScrollbarTimeToFade, () => {
_fadeoutAnimationController.reverse();
_fadeoutTimer = null;
});
}
}
return(false);
}