bug in scopedModelDescendant
Closed this issue · 1 comments
jacksonn455 commented
In my other code that code is correct and i put the same code and have a error in scopedmodel.
import 'package:armarios_inteligentes/models/user_model.dart';
import 'package:armarios_inteligentes/widgets/sign_up_button.dart';
import 'package:flutter/material.dart';
import 'package:scoped_model/scoped_model.dart';
class NewLoginScreen extends StatefulWidget {
@override
_NewLoginScreenState createState() => _NewLoginScreenState();
}
class _NewLoginScreenState extends State<NewLoginScreen> {
final _emailController = TextEditingController();
final _passController = TextEditingController();
final _formKey = GlobalKey<FormState>();
final _scaffoldKey = GlobalKey<ScaffoldState>();
@override
Widget build(BuildContext context) {
return Scaffold(
key: _scaffoldKey,
appBar: AppBar(backgroundColor: Colors.transparent),
body: ScopedModelDescendant<UserModel>(
builder: (context, child, model) {
if (model.isLoading)
return Center(
child: CircularProgressIndicator(),
);
return Form(
key: _formKey,
child: Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage("images/blue2.jpg"),
fit: BoxFit.cover)),
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
Stack(
alignment: Alignment.bottomCenter,
children: <Widget>[
Column(
children: <Widget>[
Padding(
padding: EdgeInsets.only(top: 10, bottom: 10),
child: Image.asset(
"images/logo.png",
width: 130,
height: 130,
fit: BoxFit.contain,
),
),
TextFormField(
style: TextStyle(color: Colors.white),
controller: _emailController,
decoration: InputDecoration(
hintStyle: TextStyle(
color: Colors.white,
fontFamily: "WorkSansLight",
fontSize: 15.0),
filled: true,
fillColor: Colors.white24,
hintText: "E-mail",
border: OutlineInputBorder(
borderRadius:
BorderRadius.all(Radius.circular(90.0)),
borderSide: BorderSide(
color: Colors.white24, width: 0.5)),
prefixIcon: const Icon(
Icons.email,
color: Colors.white,
),
),
keyboardType: TextInputType.emailAddress,
validator: (text) {
if (text.isEmpty || !text.contains("@"))
return "E-mail inválido!";
},
),
SizedBox(
height: 10.0,
),
TextFormField(
style: TextStyle(color: Colors.white),
controller: _passController,
decoration: InputDecoration(
hintStyle: TextStyle(
color: Colors.white,
fontFamily: "WorkSansLight",
fontSize: 15.0),
filled: true,
fillColor: Colors.white24,
hintText: "Senha",
border: OutlineInputBorder(
borderRadius:
BorderRadius.all(Radius.circular(90.0)),
borderSide: BorderSide(
color: Colors.white24, width: 0.5)),
prefixIcon: const Icon(
Icons.lock_outline,
color: Colors.white,
),
),
obscureText: true,
validator: (text) {
if (text.isEmpty || text.length < 6)
return "Senha inválida!";
},
),
Align(
alignment: Alignment.centerRight,
child: FlatButton(
onPressed: () {
if (_emailController.text.isEmpty)
_scaffoldKey.currentState
.showSnackBar(SnackBar(
content: Text(
"Insira seu e-mail para recuperação!"),
backgroundColor: Colors.redAccent,
duration: Duration(seconds: 2),
));
else {
model.recoverPass(_emailController.text);
_scaffoldKey.currentState
.showSnackBar(SnackBar(
content: Text("Confira seu e-mail!"),
backgroundColor: Colors.purple,
duration: Duration(seconds: 3),
));
}
},
child: Text(
"Esqueci minha senha",
textAlign: TextAlign.right,
style: TextStyle(
color: Colors.white, fontSize: 13.0),
),
padding: EdgeInsets.zero,
),
),
SizedBox(
height: 10,
),
SizedBox(
height: 75,
width: 75,
child: new FloatingActionButton(
backgroundColor: Colors.white30,
child: Text(
"Entrar",
style: TextStyle(
fontSize: 18.0,
),
),
onPressed: () {
if (_formKey.currentState.validate()) {}
model.signIn(
email: _emailController.text,
pass: _passController.text,
onSuccess: _onSuccess,
onFail: _onFail);
},
),
),
SignUpButton()
],
),
],
),
],
),
),
);
},
),
);
}
void _onSuccess() {
Navigator.of(context).pop();
}
void _onFail() {
_scaffoldKey.currentState.showSnackBar(SnackBar(
content: Text("Falha ao Entrar!"),
backgroundColor: Colors.redAccent,
duration: Duration(seconds: 3),
));
}
}
I/flutter ( 5343): The following ScopedModelError was thrown building ScopedModelDescendant(dirty):
I/flutter ( 5343): Error: Could not find the correct ScopedModel.
I/flutter ( 5343):
I/flutter ( 5343): To fix, please:
I/flutter ( 5343):
I/flutter ( 5343): * Provide types to ScopedModel
I/flutter ( 5343): * Provide types to ScopedModelDescendant
I/flutter ( 5343): * Provide types to ScopedModel.of()
I/flutter ( 5343): * Always use package imports. Ex: `import 'package:my_app/my_model.dart';
I/flutter ( 5343):
fliermanrw commented
In your main, you should init the model, otherwise there is no model of course.. e.g:
@override
Widget build(BuildContext context) {
final MainModel model = MainModel();
return ScopedModel<MainModel>(
model: model,
child: MaterialApp(
title: "De Kleine Gast",
navigatorObservers: [
CupertinoSwipeBackObserver(),
],
debugShowCheckedModeBanner: false,
debugShowMaterialGrid: false,
routes: {
'/': (BuildContext context) => NewLoginScreen(model),
},
),
);
}
After that you can pass your model around. It is called Descendant for a reason :)