buildScrollbar method

@override Widget buildScrollbar(BuildContext context, Widget child, ScrollableDetails details)

Applies a RawScrollbar to the child widget on desktop platforms.

Implementation

@override
Widget buildScrollbar(
    BuildContext context, Widget child, ScrollableDetails details) {
  switch (getPlatform(context)) {
    case TargetPlatform.linux:
    case TargetPlatform.macOS:
    case TargetPlatform.windows:
      assert(details.controller != null);
      if (details.controller!.positions.length > 1 ||
          details.controller!.debugLabel == 'inner') {
        return child;
      }
      return Scrollbar(
        controller: details.controller,
        child: child,
      );
    case TargetPlatform.android:
    case TargetPlatform.fuchsia:
    case TargetPlatform.iOS:
      return child;
    default:
      return child;
  }
}