showOverlayNotification function

OverlaySupportEntry showOverlayNotification(WidgetBuilder builder, { Duration? duration, Key? key, NotificationPosition position = NotificationPosition.top, BuildContext? context, })

Popup a notification at the top of screen.

duration the notification display duration , overlay will auto dismiss after duration. if null , will be set to kNotificationDuration. if zero , will not auto dismiss in the future.

position the position of notification, default is NotificationPosition.top, can be NotificationPosition.top or NotificationPosition.bottom.

Implementation

OverlaySupportEntry showOverlayNotification(
  WidgetBuilder builder, {
  Duration? duration,
  Key? key,
  NotificationPosition position = NotificationPosition.top,
  BuildContext? context,
}) {
  duration ??= kNotificationDuration;
  return showOverlay(
    (context, t) {
      var alignment = MainAxisAlignment.start;
      if (position == NotificationPosition.bottom) {
        alignment = MainAxisAlignment.end;
      }
      return Column(
        mainAxisAlignment: alignment,
        children: <Widget>[
          position == NotificationPosition.top
              ? TopSlideNotification(builder: builder, progress: t)
              : BottomSlideNotification(builder: builder, progress: t)
        ],
      );
    },
    duration: duration,
    key: key,
    context: context,
  );
}