Flutter TextFormField onSaved no called when not visible on screen
I have a TextFormField inside the ListView and I found a problem that the onsaved callback never called when the TextFormField is not on screen. I plan to save the value manually using the TextEditingController but is it a good way to go?
Here some snippet code :
class _MyHomePageState extends State<MyHomePage> {
final _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Title"),
actions: <Widget>[
IconButton(
icon: Icon(Icons.save),
onPressed: () {
_formKey.currentState.save();
},
)
],
),
body: Form(
key: _formKey,
child: ListView(
children: List<int>.generate(30, (index) => index).map((v) {
return TextFormField(
decoration: InputDecoration(labelText: "Input $v"),
onSaved: (v1) => print("On save $v called"),
);
}).toList(),
),
),
);
}
}
The "On save $v called" printed not for all field.
flutter asked Nov 24 '18 at 10:40
ApinApin
1,277716
add a comment |
I have a TextFormField inside the ListView and I found a problem that the onsaved callback never called when the TextFormField is not on screen. I plan to save the value manually using the TextEditingController but is it a good way to go?
Here some snippet code :
class _MyHomePageState extends State<MyHomePage> {
final _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Title"),
actions: <Widget>[
IconButton(
icon: Icon(Icons.save),
onPressed: () {
_formKey.currentState.save();
},
)
],
),
body: Form(
key: _formKey,
child: ListView(
children: List<int>.generate(30, (index) => index).map((v) {
return TextFormField(
decoration: InputDecoration(labelText: "Input $v"),
onSaved: (v1) => print("On save $v called"),
);
}).toList(),
),
),
);
}
}
The "On save $v called" printed not for all field.
flutter asked Nov 24 '18 at 10:40
ApinApin
1,277716
Do you have some code to share?
– Mattia Galati
Nov 24 '18 at 10:52
add a comment |
I have a TextFormField inside the ListView and I found a problem that the onsaved callback never called when the TextFormField is not on screen. I plan to save the value manually using the TextEditingController but is it a good way to go?
Here some snippet code :
class _MyHomePageState extends State<MyHomePage> {
final _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Title"),
actions: <Widget>[
IconButton(
icon: Icon(Icons.save),
onPressed: () {
_formKey.currentState.save();
},
)
],
),
body: Form(
key: _formKey,
child: ListView(
children: List<int>.generate(30, (index) => index).map((v) {
return TextFormField(
decoration: InputDecoration(labelText: "Input $v"),
onSaved: (v1) => print("On save $v called"),
);
}).toList(),
),
),
);
}
}
The "On save $v called" printed not for all field.
flutter asked Nov 24 '18 at 10:40
ApinApin
1,277716
I have a TextFormField inside the ListView and I found a problem that the onsaved callback never called when the TextFormField is not on screen. I plan to save the value manually using the TextEditingController but is it a good way to go?
Here some snippet code :
class _MyHomePageState extends State<MyHomePage> {
final _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Title"),
actions: <Widget>[
IconButton(
icon: Icon(Icons.save),
onPressed: () {
_formKey.currentState.save();
},
)
],
),
body: Form(
key: _formKey,
child: ListView(
children: List<int>.generate(30, (index) => index).map((v) {
return TextFormField(
decoration: InputDecoration(labelText: "Input $v"),
onSaved: (v1) => print("On save $v called"),
);
}).toList(),
),
),
);
}
}
The "On save $v called" printed not for all field.
flutter flutter asked Nov 24 '18 at 10:40
ApinApin
1,277716
asked Nov 24 '18 at 10:40
ApinApin
1,277716
edited Nov 25 '18 at 22:01
Apin
asked Nov 24 '18 at 10:40
ApinApin
1,277716
asked Nov 24 '18 at 10:40
ApinApin
1,277716
asked Nov 24 '18 at 10:40
ApinApin
1,277716
1,277716
Do you have some code to share?
– Mattia Galati
Nov 24 '18 at 10:52
add a comment |
Do you have some code to share?
– Mattia Galati
Nov 24 '18 at 10:52
Do you have some code to share?
– Mattia Galati
Nov 24 '18 at 10:52
Do you have some code to share?
– Mattia Galati
Nov 24 '18 at 10:52
add a comment |
1 Answer
1
active
oldest
votes
I found the solution, so instead of using ListView, I use SingleChildScrollView.
answered Nov 26 '18 at 20:28
ApinApin
1,277716
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I found the solution, so instead of using ListView, I use SingleChildScrollView.
answered Nov 26 '18 at 20:28
ApinApin
1,277716
add a comment |
I found the solution, so instead of using ListView, I use SingleChildScrollView.
answered Nov 26 '18 at 20:28
ApinApin
1,277716
add a comment |
I found the solution, so instead of using ListView, I use SingleChildScrollView.
answered Nov 26 '18 at 20:28
ApinApin
1,277716
I found the solution, so instead of using ListView, I use SingleChildScrollView.
answered Nov 26 '18 at 20:28
ApinApin
1,277716
answered Nov 26 '18 at 20:28
ApinApin
1,277716
answered Nov 26 '18 at 20:28
ApinApin
1,277716
answered Nov 26 '18 at 20:28
ApinApin
1,277716
1,277716
add a comment |
add a comment |
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Do you have some code to share?
– Mattia Galati
Nov 24 '18 at 10:52