TrackerScrollWidget constructor Null safety

TrackerScrollWidget(
  1. {Key? key,
  2. required ScrollView child,
  3. List<String> initialInViewIds = const [],
  4. double endNotificationOffset = 0.0,
  5. VoidCallback? onListEndReached,
  6. Duration throttleDuration = const Duration(milliseconds: 200),
  7. required IsInViewPortCondition isInViewPortCondition}
)

Implementation

TrackerScrollWidget({
  Key? key,
  required this.child,
  this.initialInViewIds = const [],
  this.endNotificationOffset = 0.0,
  this.onListEndReached,
  this.throttleDuration = const Duration(milliseconds: 200),
  required this.isInViewPortCondition,
})   : assert(endNotificationOffset >= 0.0),
      scrollDirection = child.scrollDirection,
      super(key: key);