title: Continue button and icons are hidden for my stepper flutter
body: <p>The issue is that progress icons and continue button are hidden in my stepper (cancel button is visible). So when i click on the place where "continue" button should exists (next to Cancel button) the "continue" event is happening and its correct.
  The strange thing is that when i use the same code in a new test project, i can see both buttons and icons. Maybe its related to my sidebar but i am not sure.</p>
  
  <pre><code>import 'package:flutter/material.dart';
  import 'package:taamin/bloc/navigation_bloc/navigation_bloc.dart';
  
  class MyOrdersPage extends StatefulWidget with NavigationStates{
  
    @override
    _MyOrdersPageState createState() =&gt; _MyOrdersPageState();
  }
  
  class _MyOrdersPageState extends State&lt;MyOrdersPage&gt; {
    List&lt;Step&gt; steps = [
      Step(
        title: const Text('New Account'),
        isActive: true,
        state: StepState.complete,
        content: Column(
          children: &lt;Widget&gt;[
            TextFormField(
              decoration: InputDecoration(labelText: 'Email Address'),
            ),
            TextFormField(
              decoration: InputDecoration(labelText: 'Password'),
            ),
          ],
        ),
      ),
      Step(
        title: const Text('Address'),
        isActive: true,
        state: StepState.editing,
        content: Column(
          children: &lt;Widget&gt;[
            TextFormField(
              decoration: InputDecoration(labelText: 'Home Address'),
            ),
            TextFormField(
              decoration: InputDecoration(labelText: 'Postcode'),
            ),
          ],
        ),
      ),
      Step(
        state: StepState.error,
        title: const Text('Avatar'),
        subtitle: const Text("Error!"),
        content: Column(
          children: &lt;Widget&gt;[
            CircleAvatar(
              backgroundColor: Colors.red,
            )
          ],
        ),
      ),
    ];
  
    StepperType stepperType = StepperType.vertical;
  
    int currentStep = 0;
    bool complete = false;
  
    next() {
      currentStep + 1 != steps.length
          ? goTo(currentStep + 1)
          : setState(() =&gt; complete = true);
    }
  
    cancel() {
      if (currentStep &gt; 0) {
        goTo(currentStep - 1);
      }
    }
  
    goTo(int step) {
      setState(() =&gt; currentStep = step);
    }
  
    switchStepType() {
      setState(() =&gt; stepperType == StepperType.horizontal
          ? stepperType = StepperType.vertical
          : stepperType = StepperType.horizontal);
    }
  
    @override
    Widget build(BuildContext context) {
      return new Scaffold(
          appBar: AppBar(
            title: Text('Assurance Véhicule'),
          ),
          body: Column(children: &lt;Widget&gt;[
          complete ? Expanded(
          child: Center(
          child: AlertDialog(
          title: new Text("Profile Created"),
        content: new Text(
          "Tada!",
        ),
        actions: &lt;Widget&gt;[
          new FlatButton(
            child: new Text("Close"),
            onPressed: () {
              setState(() =&gt; complete = false);
            },
          ),
        ],
      ),
      ),
      )
            : Expanded(
              child: Stepper(
                steps: steps,
                type: stepperType,
                currentStep: currentStep,
                onStepContinue: next,
                onStepTapped: (step) =&gt; goTo(step),
                onStepCancel: cancel,
              ),
            ),
          ]),
        floatingActionButton: FloatingActionButton(
          child: Icon(Icons.list),
          onPressed: switchStepType,
        ),
      );
    }
  }
  </code></pre>
  
  <p>and here is the code of my sidebar menu:</p>
  
  <pre><code>import 'dart:async';
  import 'dart:io';
  import 'dart:typed_data';
  import 'package:rxdart/rxdart.dart';
  import 'package:flutter/material.dart';
  import 'package:flutter_bloc/flutter_bloc.dart';
  import 'package:taamin/bloc/navigation_bloc/navigation_bloc.dart';
  import 'package:taamin/sidebar/menu_item.dart';
  
  class SideBar extends StatefulWidget {
    @override
    _SideBarState createState() =&gt; _SideBarState();
  }
  
  class _SideBarState extends State&lt;SideBar&gt;
      with SingleTickerProviderStateMixin&lt;SideBar&gt; {
    AnimationController _animationController;
    StreamController&lt;bool&gt; isSidebarOpenedStreamController;
    Stream&lt;bool&gt; isSidebarOpenedStream;
    StreamSink&lt;bool&gt; isSidebarOpenedSink;
    final _animationDuration = const Duration(milliseconds: 500);
  
    @override
    void initState() {
      super.initState();
      _animationController =
          AnimationController(vsync: this, duration: _animationDuration);
      isSidebarOpenedStreamController = PublishSubject&lt;bool&gt;();
      isSidebarOpenedStream = isSidebarOpenedStreamController.stream;
      isSidebarOpenedSink = isSidebarOpenedStreamController.sink;
    }
  
    @override
    void dispose() {
      _animationController.dispose();
      isSidebarOpenedStreamController.close();
      isSidebarOpenedSink.close();
      super.dispose();
    }
  
    void onIconPressed() {
      final animationStatus = _animationController.status;
      final isAnimationCompleted = animationStatus == AnimationStatus.completed;
      //completed means sidebar is open
      if (isAnimationCompleted) {
        isSidebarOpenedSink.add(false);
        _animationController.reverse();
      } else {
        isSidebarOpenedSink.add(true);
        _animationController.forward();
      }
    }
  
    @override
    Widget build(BuildContext context) {
      final screenWidth = MediaQuery.of(context).size.width;
  
      return StreamBuilder&lt;bool&gt;(
        initialData: false,
        stream: isSidebarOpenedStream,
        builder: (context, isSideBarOpenedAsync) {
          return AnimatedPositioned(
            duration: _animationDuration,
            top: 0,
            bottom: 0,
            left: isSideBarOpenedAsync.data ? 0 : -screenWidth,
            right: isSideBarOpenedAsync.data ? 0 : screenWidth - 30,
            child: Row(
              children: &lt;Widget&gt;[
                Expanded(
                  child: Container(
                    padding: const EdgeInsets.symmetric(horizontal: 20),
                    color: const Color(0xFF262AAA),
                    child: Column(
                      children: &lt;Widget&gt;[
                        SizedBox(
                          height: 100,
                        ),
                        ListTile(
                          title: Text(
                            "Yassine",
                            style: TextStyle(
                                color: Colors.white,
                                fontSize: 30,
                                fontWeight: FontWeight.w800),
                          ),
                          subtitle: Text(
                            "firstname.name@gmail.com",
                            style: TextStyle(
                              color: Color(0xFF1BB5FD),
                              fontSize: 15,
                            ),
                          ),
                          leading: CircleAvatar(
                            child: Icon(
                              Icons.perm_identity,
                              color: Colors.white,
                            ),
                            radius: 40,
                          ),
  
                        ),
                        Divider(
                          height: 64,
                          thickness: 0.5,
                          color: Colors.white.withOpacity(0.3),
                          indent: 32,
                          endIndent: 32,
                        ),
                        MenuItem(
                          icon: Icons.home,
                          title: "Home",
                          onTap: () {
                            onIconPressed();
                            BlocProvider.of&lt;NavigationBloc&gt;(context).add(NavigationEvents.HomePageClickedEvent);
                          },
                        ),
                        MenuItem(
                          icon: Icons.person,
                          title: "My Accounts",
                          onTap: () {
                            onIconPressed();
                            BlocProvider.of&lt;NavigationBloc&gt;(context).add(NavigationEvents.MyAccountClickedEvent);
                          },
                        ),
                        MenuItem(
                          icon: Icons.directions_car,
                          title: "Assurance Véhicule",
                          onTap: () {
                            onIconPressed();
                            BlocProvider.of&lt;NavigationBloc&gt;(context).add(NavigationEvents.MyOrdersClickedEvent);
                          },
                        ),
                        MenuItem(
                          icon: Icons.card_giftcard,
                          title: "Wishlist",
                        ),
                        Divider(
                          height: 64,
                          thickness: 0.5,
                          color: Colors.white.withOpacity(0.3),
                          indent: 32,
                          endIndent: 32,
                        ),
                        MenuItem(
                          icon: Icons.settings,
                          title: "Settings",
                        ),
                        MenuItem(
                          icon: Icons.exit_to_app,
                          title: "Logout",
                            onTap: () {
                              onIconPressed();
                              exit(0);
                            }
                        ),
                      ],
                    ),
                  ),
                ),
                Align(
                  alignment: Alignment(0, -0.9),
                  child: GestureDetector(
                    onTap: () {
                      onIconPressed();
                    },
                    child: ClipPath(
                      clipper: CustomMenuClipper(),
                      child: Container(
                        width: 35,
                        height: 110,
                        color: Color(0xFF262AAA),
                        alignment: Alignment.centerLeft,
                        child: AnimatedIcon(
                          progress: _animationController.view,
                          icon: AnimatedIcons.menu_close,
                          color: Color(0xFF1BB5FD),
                          size: 25,
                        ),
                      ),
                    ),
                  ),
                )
              ],
            ),
          );
        },
      );
    }
  }
  
  class CustomMenuClipper extends CustomClipper&lt;Path&gt; {
    @override
    Path getClip(Size size) {
      Paint paint = Paint();
      paint.color = Colors.white;
  
      final width = size.width;
      final height = size.height;
  
      Path path = Path();
      path.moveTo(0, 0);
      path.quadraticBezierTo(0, 8, 10, 16);
      path.quadraticBezierTo(width - 1, height / 2 - 20, width, height / 2);
      path.quadraticBezierTo(width + 1, height / 2 + 20, 10, height - 16);
      path.quadraticBezierTo(0, height - 8, 0, height);
      path.close();
  
      return path;
    }
  
    @override
    bool shouldReclip(CustomClipper&lt;Path&gt; oldClipper) {
      return false;
    }
  }
  </code></pre>