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Error when trying to show flushbar #6

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carnivash opened this issue Sep 5, 2018 · 10 comments
Closed

Error when trying to show flushbar #6

carnivash opened this issue Sep 5, 2018 · 10 comments
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bug Something isn't working

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@carnivash
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Wherever i call show(context) for flushbar i get a bunch of errors:

flutter: ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
flutter: The following assertion was thrown building _FocusScopeMarker(dirty):
flutter: A build function returned null.
flutter: The offending widget is: _FocusScopeMarker
flutter: Build functions must never return null. To return an empty space that causes the building widget to
flutter: fill available room, return "new Container()". To return an empty space that takes as little room as
flutter: possible, return "new Container(width: 0.0, height: 0.0)".
flutter:
flutter: When the exception was thrown, this was the stack:
flutter: #0 debugWidgetBuilderValue. (package:flutter/src/widgets/debug.dart:250:7)
flutter: #1 debugWidgetBuilderValue (package:flutter/src/widgets/debug.dart:259:4)
flutter: #2 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3656:7)
flutter: #3 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #4 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #5 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #6 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #7 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #8 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #9 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #10 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #11 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #12 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #13 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #14 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3782:11)
flutter: #15 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #16 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #17 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #18 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #19 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #20 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #21 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #22 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #23 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #24 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #25 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #26 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #27 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #28 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #29 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #30 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #31 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #32 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #33 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #34 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #35 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #36 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #37 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #38 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #39 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #40 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #41 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #42 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #43 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #44 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #45 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #46 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #47 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #48 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #49 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #50 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #51 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3782:11)
flutter: #52 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #53 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #54 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #55 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #56 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #57 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #58 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #59 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #60 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #61 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #62 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #63 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #64 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #65 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #66 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #67 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #68 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #69 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #70 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3782:11)
flutter: #71 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #72 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #73 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #74 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #75 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #76 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #77 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3782:11)
flutter: #78 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #79 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #80 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #81 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #82 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #83 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #84 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #85 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #86 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #87 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3782:11)
flutter: #88 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #89 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #90 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #91 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #92 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #93 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #94 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #95 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #96 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #97 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3782:11)
flutter: #98 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #99 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #100 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #101 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #102 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #103 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #104 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #105 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #106 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #107 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4667:14)
flutter: #108 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #109 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #110 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #111 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #112 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #113 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #114 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #115 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #116 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #117 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #118 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #119 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #120 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #121 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #122 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #123 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #124 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #125 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #126 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #127 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #128 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #129 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #130 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3635:5)
flutter: #131 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3782:11)
flutter: #132 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3630:5)
flutter: #133 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2920:14)
flutter: #134 Element.updateChild (package:flutter/src/widgets/framework.dart:2723:12)
flutter: #135 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4450:32)
flutter: #136 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4782:17)
flutter: #137 Element.updateChild (package:flutter/src/widgets/framework.dart:2712:15)
flutter: #138 _TheatreElement.update (package:flutter/src/widgets/overlay.dart:507:16)
flutter: #139 Element.updateChild (package:flutter/src/widgets/framework.dart:2712:15)
flutter: #140 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #141 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #142 StatefulElement.update (package:flutter/src/widgets/framework.dart:3812:5)
flutter: #143 Element.updateChild (package:flutter/src/widgets/framework.dart:2712:15)
flutter: #144 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #145 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #146 ProxyElement.update (package:flutter/src/widgets/framework.dart:3922:5)
flutter: #147 Element.updateChild (package:flutter/src/widgets/framework.dart:2712:15)
flutter: #148 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4674:14)
flutter: #149 Element.updateChild (package:flutter/src/widgets/framework.dart:2712:15)
flutter: #150 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #151 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #152 StatefulElement.update (package:flutter/src/widgets/framework.dart:3812:5)
flutter: #153 Element.updateChild (package:flutter/src/widgets/framework.dart:2712:15)
flutter: #154 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4674:14)
flutter: #155 Element.updateChild (package:flutter/src/widgets/framework.dart:2712:15)
flutter: #156 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4674:14)
flutter: #157 Element.updateChild (package:flutter/src/widgets/framework.dart:2712:15)
flutter: #158 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3666:16)
flutter: #159 Element.rebuild (package:flutter/src/widgets/framework.dart:3508:5)
flutter: #160 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2255:33)
flutter: #161 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&RendererBinding&WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:653:20)
flutter: #162 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:214:5)
flutter: #163 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:990:15)
flutter: #164 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:930:9)
flutter: #165 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:842:5)
flutter: #166 _invoke (dart:ui/hooks.dart:128:13)
flutter: #167 _drawFrame (dart:ui/hooks.dart:117:3)
flutter: ════════════════════════════════════════════════════════════════════════════════════════════════════
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
flutter: Another exception was thrown: A build function returned null.
@AndreHaueisen
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Owner

Hi @carnivash . One of your build functions is returning null. If you are trying to use Flushbar as the returned widget of a build function, please read the documentation because you are doing it wrong.

@carnivash
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I'm trying to show on the onpressed of a materialbutton:

MaterialButton(
onPressed: flushMessage.show(context),
minWidth: _screenWidth * 0.837,
height: _screenHeight * 0.09,
color: Color.fromARGB(255, 52, 92, 170),
textColor: Colors.white,
child: Text("entrar", style: FontStyles.loginButtonEnter,),
),

@AndreHaueisen
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AndreHaueisen commented Sep 5, 2018 •
edited
Loading

onPressed receives a callback function (){}. Wrap the flushbar code like this

MaterialButton(
   onPressed: (){
      flushMessage.show(context);
   },
   minWidth: _screenWidth * 0.837,
   height: _screenHeight * 0.09,
   color: Color.fromARGB(255, 52, 92, 170),
   textColor: Colors.white,
   child: Text("entrar", style: FontStyles.loginButtonEnter,),
),

@carnivash
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I tried that, same error.

@AndreHaueisen
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Ok. I need more code. Paste your class here, please.

@carnivash
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Yes sir, here it goes:

import 'package:flushbar/flushbar.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_svg/flutter_svg.dart';
import 'package:thinkseg/utils/font_styles.dart';
import 'package:flutter_villains/villain.dart';
import 'package:after_layout/after_layout.dart';
import 'package:thinkseg/utils/network_util.dart';


class LoginScreen extends StatefulWidget {
  @override
  _LoginScreenState createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> with AfterLayoutMixin<LoginScreen> {

  FocusNode _focusPasswordTextField, _focusEmailTextField;
  double _marginHorizontalMainContainer, _marginVerticalMainContainer;
  bool _firstRender = true;
  bool _firstEnter = true;
  double _mainContainerBorderRadius = 12.0;
  Icon _errorIconEmail, _errorIconPassword;
  Color _borderEmailFieldColor = Color.fromARGB(255, 223, 227, 233);
  Color _borderPasswordFieldColor = Color.fromARGB(255, 223, 227, 233);
  Color _borderEmailFieldColorError = Colors.red;
  Color _borderPasswordFieldColorError = Colors.red;
  Color _actualEmailBorderColor;
  Color _actualPasswordBorderColor;

  TextEditingController _inputControllerEmail = TextEditingController();
  TextEditingController _inputControllerPassword = TextEditingController();
  
  NetworkUtil netUtil = NetworkUtil();

  Flushbar flushMessage = Flushbar(
    title: "Erro de autenticação",
    message: "Usuário ou senha inválidos!",
    flushbarPosition: FlushbarPosition.TOP,
    reverseAnimationCurve: Curves.decelerate,
    forwardAnimationCurve: Curves.elasticOut,
    duration: Duration(seconds: 3),
    icon: Icon(
      Icons.error,
      color: Colors.red,
    ),
    isDismissible: false,
    leftBarIndicatorColor: Colors.red,
  );



  @override
  void afterFirstLayout(BuildContext context) async {
    VillainController.playAllVillains(context);
    _firstRender = false;
  }

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    _errorIconEmail = null;
    _errorIconPassword = null;
    _actualEmailBorderColor = _borderEmailFieldColor;
    _actualPasswordBorderColor = _borderPasswordFieldColor;
    _focusEmailTextField = FocusNode();
    _focusPasswordTextField = FocusNode();
    _focusPasswordTextField.addListener(() {
      if(_focusEmailTextField.hasFocus || _focusPasswordTextField.hasFocus) {
        _animateOpenMainContainer();
      }
    });
    _focusEmailTextField.addListener(() {
      if(_focusEmailTextField.hasFocus || _focusPasswordTextField.hasFocus) {
        _animateOpenMainContainer();
      }
    });
  }

  @override
  void dispose() {
    // TODO: implement dispose
    super.dispose();
    _focusPasswordTextField.dispose();
    _focusEmailTextField.dispose();
  }

  @override
  Widget build(BuildContext context) {

    double _screenHeight = MediaQuery.of(context).size.height;
    double _screenWidth = MediaQuery.of(context).size.width;

    if(_firstRender) {
      _marginHorizontalMainContainer = _screenWidth * 0.04;
      _marginVerticalMainContainer = _screenHeight * 0.10;
    }

    return SafeArea(
      child: Material(
        child: Stack(
          children: <Widget>[
            Container( // fundo azul escuro
              margin: EdgeInsets.all(0.0),
              color: Color.fromARGB(255, 48, 65, 96),
            ),
            Villain(
              animateEntrance: true,
              villainAnimation: VillainAnimation.fromBottom(
                relativeOffset: 1.0,
                from: Duration(milliseconds: 0),
                to: Duration(milliseconds: 1000),
                curve: Curves.elasticOut
              ),
              secondaryVillainAnimation: VillainAnimation.fade(),
              child: AnimatedContainer( // container branco arredondado
                curve: Curves.easeOut,
                duration: Duration(milliseconds: 300),
                margin: EdgeInsets.symmetric(horizontal: _marginHorizontalMainContainer, vertical: _marginVerticalMainContainer),
                decoration: ShapeDecoration(
                    shape: RoundedRectangleBorder(
                      borderRadius: BorderRadius.all(Radius.circular(_mainContainerBorderRadius)),
                    ),
                    color: Colors.white),
                child: Column(
                  children: <Widget>[
                   Container(//primeira linha da coluna que possui o logo
                     decoration: BoxDecoration(
                       color: Colors.white,
                       borderRadius: BorderRadius.vertical(top: Radius.circular(_mainContainerBorderRadius)),
                       boxShadow: [
                         BoxShadow(
                           color: Color.fromARGB(20, 0, 0, 0),
                           blurRadius: 20.0,
                           offset: Offset(0.0, 15.0)
                         )
                       ]
                     ),
                     height: _screenHeight * 0.135,
                     alignment: Alignment.center,
                     child: SvgPicture.asset(
                       "assets/images/logo.svg",
                       height: _screenHeight * 0.389,
                       width: _screenWidth * 0.501,
                     ),
                   ),
                    Column(//coluna que contem o formulário
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: <Widget>[
                        SizedBox(height: _screenHeight * 0.020,),//espaçamento entre o título e o container superior
                        Villain(
                          villainAnimation: VillainAnimation.scale(
                            fromScale: 1.2,
                            toScale: 1.0,
                            from: Duration(milliseconds: 500),
                            to: Duration(milliseconds: 700),
                          ),
                          secondaryVillainAnimation: VillainAnimation.fade(),
                          child: Text(
                            "Login",
                            style: FontStyles.loginTitle,
                          ),
                        ),
                        SizedBox(height: _screenHeight * 0.009,),//espaçamento entre o subtítulo e o título
                        Villain(
                          villainAnimation: VillainAnimation.scale(
                            fromScale: 1.2,
                            toScale: 1.0,
                            from: Duration(milliseconds: 600),
                            to: Duration(milliseconds: 800),
                          ),
                          secondaryVillainAnimation: VillainAnimation.fade(),
                          child: Text(
                            "Mesmo e-mail e senha do site 🙂",
                            style: FontStyles.loginLabel,
                          ),
                        ),
                        SizedBox(height: _screenHeight * 0.019,),//espaçamento entre a borda do campo email e o subtítulo
                        Villain(
                          villainAnimation: VillainAnimation.scale(
                            fromScale: 1.2,
                            toScale: 1.0,
                            from: Duration(milliseconds: 700),
                            to: Duration(milliseconds: 900),
                          ),
                          secondaryVillainAnimation: VillainAnimation.fade(),
                          child: Container(//borda do campo de email
                            padding: EdgeInsets.only(left: 15.0),
                            alignment: Alignment.center,
                            width: _screenWidth * 0.837,
                            height: _screenHeight * 0.09,
                            decoration: ShapeDecoration(
                              color: Colors.white,
                              shape: RoundedRectangleBorder(
                              borderRadius: BorderRadius.circular(4.0),
                              side: BorderSide(
                                  color: _actualEmailBorderColor,
                                  style: BorderStyle.solid,
                                  width: 1.0
                                )
                              ),
                            ),
                            child: TextField(//campo de email
                              focusNode: _focusEmailTextField,
                              style: FontStyles.loginLabel,
                              keyboardType: TextInputType.emailAddress,
                              textCapitalization: TextCapitalization.none,
                              textInputAction: TextInputAction.next,
                              controller: _inputControllerEmail,
                              onChanged: (String val) {
                                if(!_firstEnter) {
                                  validateEmail();
                                }
                              },
                              onSubmitted: (val) {
                                FocusScope.of(context).requestFocus(_focusPasswordTextField);
                              },
                              decoration: InputDecoration(
                                labelText: "E-mail",
                                labelStyle: FontStyles.loginLabel,
                                border: InputBorder.none,
                                suffixIcon: _errorIconEmail,
                              ),
                            ),
                          ),
                        ),
                        SizedBox(height: _screenHeight * 0.035,),//espaçamento entre os campos de email e senha
                        Villain(
                          villainAnimation: VillainAnimation.scale(
                            fromScale: 1.2,
                            toScale: 1.0,
                            from: Duration(milliseconds: 800),
                            to: Duration(milliseconds: 1000),
                          ),
                          secondaryVillainAnimation: VillainAnimation.fade(),
                          child: Container(//borda do campo de senha
                            padding: EdgeInsets.only(left: 15.0),
                            alignment: Alignment.center,
                            width: _screenWidth * 0.837,
                            height: _screenHeight * 0.09,
                            decoration: ShapeDecoration(
                              color: Colors.white,
                              shape: RoundedRectangleBorder(
                                  borderRadius: BorderRadius.circular(4.0),
                                  side: BorderSide(
                                      color: _actualPasswordBorderColor,
                                      style: BorderStyle.solid,
                                      width: 1.0
                                  )
                              ),
                            ),
                            child: TextField(//campo de senha
                              focusNode: _focusPasswordTextField,
                              style: FontStyles.loginLabel,
                              textCapitalization: TextCapitalization.none,
                              textInputAction: TextInputAction.done,
                              obscureText: true,
                              controller: _inputControllerPassword,
                              onChanged: (String val) {
                                if(!_firstEnter) {
                                  validatePassword();
                                }
                              },
                              onSubmitted: (val) {
                                SystemChannels.textInput.invokeMethod('TextInput.hide');
                                //_loginUser();
                              },
                              decoration: InputDecoration(
                                labelText: "Senha",
                                labelStyle: FontStyles.loginLabel,
                                border: InputBorder.none,
                                suffixIcon: _errorIconPassword
                              ),
                            ),
                          ),
                        ),
                        SizedBox(height: _screenHeight * 0.035,),//espaçamento entre o campo de senha e botão entrar
                        Villain(
                          villainAnimation: VillainAnimation.scale(
                            fromScale: 1.2,
                            toScale: 1.0,
                            from: Duration(milliseconds: 900),
                            to: Duration(milliseconds: 1100),
                          ),
                          secondaryVillainAnimation: VillainAnimation.fade(),
                          child: MaterialButton(//botão entrar
                            onPressed: () {
                              flushMessage.show(context);
                            },
                            minWidth: _screenWidth * 0.837,
                            height: _screenHeight * 0.09,
                            color: Color.fromARGB(255, 52, 92, 170),
                            textColor: Colors.white,
                            child: Text("entrar", style: FontStyles.loginButtonEnter,),
                          ),
                        ),
                        SizedBox(height: _screenHeight * 0.010,),
                        Villain(
                          villainAnimation: VillainAnimation.scale(
                            fromScale: 1.2,
                            toScale: 1.0,
                            from: Duration(milliseconds: 1000),
                            to: Duration(milliseconds: 1200),
                          ),
                          secondaryVillainAnimation: VillainAnimation.fade(),
                          child: FlatButton(
                            onPressed: () => print("esqueceu"),
                            child: Text("Esqueceu a senha?", style: FontStyles.loginForgetPassword,),
                          ),
                        )
                      ],
                    )
                  ],
                ),
              ),
            )
          ],
        ),
      ),
    );
  }
  bool validateEmail() {
    Pattern pattern = r'^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$';
    RegExp regex = new RegExp(pattern);
    if (!regex.hasMatch(_inputControllerEmail.text)) {
      setState(() {
        _errorIconEmail = Icon(Icons.error, color: Colors.red,);
        _actualEmailBorderColor = _borderEmailFieldColorError;
      });
      return false;
    }else{
      setState(() {
        _errorIconEmail = null;
        _actualEmailBorderColor = _borderEmailFieldColor;
      });
      return true;
    }
  }
 bool validatePassword() {
    if (_inputControllerPassword.text.length < 1) {
      setState(() {
        _errorIconPassword = Icon(Icons.error, color: Colors.red,);
        _actualPasswordBorderColor = _borderPasswordFieldColorError;
      });
      return false;
    }else{
      setState(() {
        _errorIconPassword = null;
        _actualPasswordBorderColor = _borderPasswordFieldColor;
      });
      return true;
    }
  }
//  _loginUser() async {
//    bool emailValid = validateEmail();
//    bool passwordValid = validatePassword();
//
//    if(emailValid && passwordValid) {
//      dynamic response = await netUtil.post(
//          "http://192.168.1.192:3000/api/v3/customers/auth/sign_in",
//          headers: {
//            "Content-Type":"application/json"
//          },
//          body: {
//            "email": "chrystal@altenwerth.co.uk",
//            "password": "1020304050"
//          });
//      print(response.toString());
//    } else {
//      _firstEnter = false;
//      flushMessage.show(context);
//    }
//  }
  _animateOpenMainContainer() {
    setState(() {
      _marginVerticalMainContainer = 0.0;
      _marginHorizontalMainContainer = 0.0;
      _mainContainerBorderRadius = 0.0;
    });
  }
}

@AndreHaueisen AndreHaueisen added the bug Something isn't working label Sep 7, 2018
@AndreHaueisen
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@carnivash
Found the problem. It is an issue when you set isDismissible to false. Expect the fix today.
Thanks for the feedback.

@AndreHaueisen
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Version 0.8.3 released. Check if it solved your problems, please.

@AndreHaueisen
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Closing it for now. If the problem persists, please let me know.

@carnivash
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I am sorry, but just now i had time to test, it's working perfectly, thank you very much.

@withmukeshjoshi withmukeshjoshi mentioned this issue Nov 22, 2018
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@aabanaag aabanaag mentioned this issue Jun 3, 2019
Closed
@devj3ns devj3ns mentioned this issue Dec 3, 2020
Open
@jayeshindianic jayeshindianic mentioned this issue Jun 30, 2021
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@carnivash @AndreHaueisen