正确使用Mixin颤振

Question

我正在寻找创建两个相似的小部件，因此应该共享一些代码。

我制作了一个看起来像这样的mixin

import 'package:flutter/material.dart';

mixin WidgetShared <T extends StatefulWidget> on State<T>, TickerProviderStateMixin<T>{

  AnimationController controlsAnimationController;
  Animation<double> controlsAnimation;
  bool controlsOpen = false;

  @override
  void initState() {
    super.initState();
    print("This was the init");

    controlsAnimationController = AnimationController(
        duration: const Duration(milliseconds: 400), vsync: this);
    controlsAnimation = CurvedAnimation(
        parent: controlsAnimationController, curve: Curves.easeInOut);
  }

  @override
  void dispose() {
    controlsAnimationController.dispose();
    super.dispose();
  }

  void toggleControls(bool disableClicks) {
    if (disableClicks == false) {
      if (controlsAnimationController.value > 0) {
        setState(() {
          controlsOpen = false;
        });
        controlsAnimationController.reverse();
      } else {
        setState(() {
          controlsOpen = true;
        });
        controlsAnimationController.forward();
      }
    }
  }


  void closeControls() {
    if (controlsAnimationController.value > 0) {
      setState(() {
        controlsOpen = false;
      });
      controlsAnimationController.reverse();
    }
  }
}

两个小部件都使用例如

class _Widget1State extends State<MediaViewer>
    with TickerProviderStateMixin, SuperMediaViewer{

然后我可以轻松地在两个小部件中引用controlsOpen，controlsOpen和toggleControls（）。

但是，如果我不断更改应用程序上的切换页面，则会收到此错误，该错误源自我的提供者状态对象之一。

I/flutter (31161): ══╡ EXCEPTION CAUGHT BY FOUNDATION LIBRARY ╞════════════════════════════════════════════════════════
I/flutter (31161): The following assertion was thrown while dispatching notifications for NewUserDetailsState:
I/flutter (31161): setState() or markNeedsBuild() called when widget tree was locked.
I/flutter (31161): This _DefaultInheritedProviderScope<NewUserDetailsState> widget cannot be marked as needing to build
I/flutter (31161): because the framework is locked.
I/flutter (31161): The widget on which setState() or markNeedsBuild() was called was:

我显然没有正确地做某事，但不确定。如果有人能指出正确的方向，我将不胜感激。

谢谢