Is AutoSizeGroup working within a pageview?

[desmeit]

Every time if I try to add a AutoSizeGroup to each child of an itembuilder of Pageview, it is loosing its state.
How ist the right way to add it?

final List<Widget> _pages = [
    OnboardingPage(
      color: Colors.blue,
      title: "title",
      subtitle: "subtitle",
      text: "the text,
      image: 'assets/svg/test.svg',
    ),

...

PageView.builder(
            controller: _controller,
            itemCount: _pages.length,
            itemBuilder: (context, position) {
              final page = Padding(
                padding: const EdgeInsets.symmetric(horizontal: 30),
                child: _pages[position],
              );

...

class OnboardingPage extends StatelessWidget {
  const OnboardingPage(
      {Key key,
      @required this.title,
      @required this.subtitle,
      @required this.text,
      @required this.color,
      @required this.image})
      : super(key: key);

  final String title;
  final String subtitle;
  final String text;
  final Color color;
  final String image;

@override
  Widget build(BuildContext context) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.stretch,
      children: <Widget>[
        SizedBox(
          height: 50,
        ),
        Padding(
          padding: const EdgeInsets.symmetric(horizontal: 30),
          child: AutoSizeText(title,
              textAlign: TextAlign.left,
              softWrap: false,
              maxLines: 1,
              minFontSize: 0,
              stepGranularity: 0.1,
              style: GoogleFonts.nunito(
                  fontSize: 40,
                  fontStyle: FontStyle.normal,
                  fontWeight: FontWeight.w800,
                  //letterSpacing: 0.8,
                  height: 1.0,
                  color: Colors.black87)),
        ),

...

I want the title of each element in the pageview to be the same size.

[mattgonewild]

I could be wrong but I think you need to use a regular PageView or come up with another way to sync font size.