createAnimationController method Null safety

AnimationController createAnimationController(
  1. TickerProvider vsync
)

Creates an AnimationController suitable for a BottomSheet.animationController.

This API available as a convenience for a Material compliant bottom sheet animation. If alternative animation durations are required, a different animation controller could be provided.

Implementation

static AnimationController createAnimationController(TickerProvider vsync) {
  return AnimationController(
    duration: _bottomSheetEnterDuration,
    reverseDuration: _bottomSheetExitDuration,
    debugLabel: 'BottomSheet',
    vsync: vsync,
  );
}