flutter: Another exception was thrown: No MaterialLocalizations found












2















I am trying to show an Alert Dialog on press of a button in Flutter.
Following is my code



main() => runApp(MyApp());

class MyApp extends StatefulWidget {
@override
State<StatefulWidget> createState() {
return MyAppState();
}
}

class MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: "Different Widgets",
debugShowCheckedModeBanner: false,
home: showAlertDialog()
);
}

void _dialogResult(String value) {
if (value == "YES") {
print("YES");
} else {
print("NO");
}
Navigator.pop(context);
}

Widget showAlertDialog() {
TextEditingController textEditingController = TextEditingController();

return Scaffold(
appBar: AppBar(
title: Text("Different Widgets"),
),
body: Container(
child: Center(
child: Column(
children: <Widget>[
TextField(
controller: textEditingController,
),
RaisedButton(
onPressed: () {
print("Hi");
AlertDialog dialog = AlertDialog(
title: Text("Hi"),
content: Text(
textEditingController.text,
style: TextStyle(fontSize: 30.0),
),
actions: <Widget>[
FlatButton(
onPressed: () {
_dialogResult("YES");
},
child: Text("YES")),
FlatButton(
onPressed: () {
_dialogResult("NO");
},
child: Text("NO")),
],
);

showDialog(context: context, builder: (BuildContext context) => dialog);
},
child: Text("Click Me"),
)
],
),
),
),
);
}


What does this has to do with Localisation, I cannot follow. I did the same steps as per the docs. I am able to see the button but on click of that button I keep getting error. I tried writing print statement inside of button click and the print statement appears in the log, definitely something wrong with AlertDialog.










share|improve this question

























  • Can you show us your MaterialApp ?

    – Rémi Rousselet
    Nov 25 '18 at 15:42











  • @RémiRousselet I have added the entire code. Please check the edited question

    – Nudge
    Nov 25 '18 at 15:49











  • Try to extract showAlertDialog into a widget instead of a function

    – Rémi Rousselet
    Nov 25 '18 at 15:57











  • @RémiRousselet Tried doing that but does not work

    – Nudge
    Nov 25 '18 at 16:12
















2















I am trying to show an Alert Dialog on press of a button in Flutter.
Following is my code



main() => runApp(MyApp());

class MyApp extends StatefulWidget {
@override
State<StatefulWidget> createState() {
return MyAppState();
}
}

class MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: "Different Widgets",
debugShowCheckedModeBanner: false,
home: showAlertDialog()
);
}

void _dialogResult(String value) {
if (value == "YES") {
print("YES");
} else {
print("NO");
}
Navigator.pop(context);
}

Widget showAlertDialog() {
TextEditingController textEditingController = TextEditingController();

return Scaffold(
appBar: AppBar(
title: Text("Different Widgets"),
),
body: Container(
child: Center(
child: Column(
children: <Widget>[
TextField(
controller: textEditingController,
),
RaisedButton(
onPressed: () {
print("Hi");
AlertDialog dialog = AlertDialog(
title: Text("Hi"),
content: Text(
textEditingController.text,
style: TextStyle(fontSize: 30.0),
),
actions: <Widget>[
FlatButton(
onPressed: () {
_dialogResult("YES");
},
child: Text("YES")),
FlatButton(
onPressed: () {
_dialogResult("NO");
},
child: Text("NO")),
],
);

showDialog(context: context, builder: (BuildContext context) => dialog);
},
child: Text("Click Me"),
)
],
),
),
),
);
}


What does this has to do with Localisation, I cannot follow. I did the same steps as per the docs. I am able to see the button but on click of that button I keep getting error. I tried writing print statement inside of button click and the print statement appears in the log, definitely something wrong with AlertDialog.










share|improve this question

























  • Can you show us your MaterialApp ?

    – Rémi Rousselet
    Nov 25 '18 at 15:42











  • @RémiRousselet I have added the entire code. Please check the edited question

    – Nudge
    Nov 25 '18 at 15:49











  • Try to extract showAlertDialog into a widget instead of a function

    – Rémi Rousselet
    Nov 25 '18 at 15:57











  • @RémiRousselet Tried doing that but does not work

    – Nudge
    Nov 25 '18 at 16:12














2












2








2








I am trying to show an Alert Dialog on press of a button in Flutter.
Following is my code



main() => runApp(MyApp());

class MyApp extends StatefulWidget {
@override
State<StatefulWidget> createState() {
return MyAppState();
}
}

class MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: "Different Widgets",
debugShowCheckedModeBanner: false,
home: showAlertDialog()
);
}

void _dialogResult(String value) {
if (value == "YES") {
print("YES");
} else {
print("NO");
}
Navigator.pop(context);
}

Widget showAlertDialog() {
TextEditingController textEditingController = TextEditingController();

return Scaffold(
appBar: AppBar(
title: Text("Different Widgets"),
),
body: Container(
child: Center(
child: Column(
children: <Widget>[
TextField(
controller: textEditingController,
),
RaisedButton(
onPressed: () {
print("Hi");
AlertDialog dialog = AlertDialog(
title: Text("Hi"),
content: Text(
textEditingController.text,
style: TextStyle(fontSize: 30.0),
),
actions: <Widget>[
FlatButton(
onPressed: () {
_dialogResult("YES");
},
child: Text("YES")),
FlatButton(
onPressed: () {
_dialogResult("NO");
},
child: Text("NO")),
],
);

showDialog(context: context, builder: (BuildContext context) => dialog);
},
child: Text("Click Me"),
)
],
),
),
),
);
}


What does this has to do with Localisation, I cannot follow. I did the same steps as per the docs. I am able to see the button but on click of that button I keep getting error. I tried writing print statement inside of button click and the print statement appears in the log, definitely something wrong with AlertDialog.










share|improve this question
















I am trying to show an Alert Dialog on press of a button in Flutter.
Following is my code



main() => runApp(MyApp());

class MyApp extends StatefulWidget {
@override
State<StatefulWidget> createState() {
return MyAppState();
}
}

class MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: "Different Widgets",
debugShowCheckedModeBanner: false,
home: showAlertDialog()
);
}

void _dialogResult(String value) {
if (value == "YES") {
print("YES");
} else {
print("NO");
}
Navigator.pop(context);
}

Widget showAlertDialog() {
TextEditingController textEditingController = TextEditingController();

return Scaffold(
appBar: AppBar(
title: Text("Different Widgets"),
),
body: Container(
child: Center(
child: Column(
children: <Widget>[
TextField(
controller: textEditingController,
),
RaisedButton(
onPressed: () {
print("Hi");
AlertDialog dialog = AlertDialog(
title: Text("Hi"),
content: Text(
textEditingController.text,
style: TextStyle(fontSize: 30.0),
),
actions: <Widget>[
FlatButton(
onPressed: () {
_dialogResult("YES");
},
child: Text("YES")),
FlatButton(
onPressed: () {
_dialogResult("NO");
},
child: Text("NO")),
],
);

showDialog(context: context, builder: (BuildContext context) => dialog);
},
child: Text("Click Me"),
)
],
),
),
),
);
}


What does this has to do with Localisation, I cannot follow. I did the same steps as per the docs. I am able to see the button but on click of that button I keep getting error. I tried writing print statement inside of button click and the print statement appears in the log, definitely something wrong with AlertDialog.







flutter alertdialog






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 25 '18 at 15:49







Nudge

















asked Nov 25 '18 at 14:52









NudgeNudge

334419




334419













  • Can you show us your MaterialApp ?

    – Rémi Rousselet
    Nov 25 '18 at 15:42











  • @RémiRousselet I have added the entire code. Please check the edited question

    – Nudge
    Nov 25 '18 at 15:49











  • Try to extract showAlertDialog into a widget instead of a function

    – Rémi Rousselet
    Nov 25 '18 at 15:57











  • @RémiRousselet Tried doing that but does not work

    – Nudge
    Nov 25 '18 at 16:12



















  • Can you show us your MaterialApp ?

    – Rémi Rousselet
    Nov 25 '18 at 15:42











  • @RémiRousselet I have added the entire code. Please check the edited question

    – Nudge
    Nov 25 '18 at 15:49











  • Try to extract showAlertDialog into a widget instead of a function

    – Rémi Rousselet
    Nov 25 '18 at 15:57











  • @RémiRousselet Tried doing that but does not work

    – Nudge
    Nov 25 '18 at 16:12

















Can you show us your MaterialApp ?

– Rémi Rousselet
Nov 25 '18 at 15:42





Can you show us your MaterialApp ?

– Rémi Rousselet
Nov 25 '18 at 15:42













@RémiRousselet I have added the entire code. Please check the edited question

– Nudge
Nov 25 '18 at 15:49





@RémiRousselet I have added the entire code. Please check the edited question

– Nudge
Nov 25 '18 at 15:49













Try to extract showAlertDialog into a widget instead of a function

– Rémi Rousselet
Nov 25 '18 at 15:57





Try to extract showAlertDialog into a widget instead of a function

– Rémi Rousselet
Nov 25 '18 at 15:57













@RémiRousselet Tried doing that but does not work

– Nudge
Nov 25 '18 at 16:12





@RémiRousselet Tried doing that but does not work

– Nudge
Nov 25 '18 at 16:12












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