I have a dropDownButton populated with a query from my database here I have the users, when I select an item I want to show all the user info in the TextFields below.
Since some of the information should not be edited by hand, I wanted to make some of the fields as containers, so I can't write in them, but some fields should be a TextField so I can edit them. I'm new to flutter so I still don't understand this at full, and I can't find a way to load the info in the TextFields when I change the dropDownButton.
here is the code below:
class UtilizadorPage extends StatefulWidget {
@override
_UtilizadorPageState createState() => new _UtilizadorPageState();
}
class _UtilizadorPageState extends State<UtilizadorPage> {
Utilizador user = Utilizador();
BDLocal db = BDLocal.instance;
Utilizador? _currentUser;
var txt = TextEditingController();
@override
void initState(){
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(
"Utilizadores",
),
),
body: Column(
children: [
Row(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
FutureBuilder<List<Utilizador>>(
future: user.getUtilizadores(),
builder: (BuildContext context,
AsyncSnapshot<List<Utilizador>> snapshot){
if (!snapshot.hasData) return CircularProgressIndicator();
return DropdownButton<Utilizador>(
alignment: Alignment.center,
items: snapshot.data?.map((util) => DropdownMenuItem<Utilizador>(
child: Text(util.nome),
value: util,
)).toList(),
onChanged:(Utilizador? value) {
setState(() {
_currentUser = value;
});
},
isExpanded: false,
//value: _currentUser,
hint: Text('Select User'),
);
}),
]
),
SizedBox(height: 20.0),
Row(
children: [
_currentUser != null
? Expanded(
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Expanded(
flex: 1,
child: Container(
child: InputDecorator(
decoration: InputDecoration(
labelText: "Nome",
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
child: Text(_currentUser!.nome)
),
),
),
SizedBox(width: 10.0),
Expanded(
flex: 1,
child: Container(
child: InputDecorator(
decoration: InputDecoration(
labelText: "ID na BDNuvem",
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
child: Text(_currentUser!.id_BDNuvem.toString())
),
),
),
]),
SizedBox(height: 20.0),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Expanded(
flex: 1,
child: TextFormField(
initialValue: _currentUser!.perfil.toString(),
decoration: InputDecoration(
label: Text("Perfil"),
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
),
),
SizedBox(width: 10.0),
Expanded(
flex: 1,
child: Container(
child: InputDecorator(
decoration: InputDecoration(
labelText: "Numero de Colaborador",
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
child: Text(_currentUser!.numero.toString())
),
),
),
],
),
SizedBox(height: 20.0),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Expanded(
flex: 1,
child: Container(
child: InputDecorator(
decoration: InputDecoration(
labelText: "Nome do Funcionario",
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
child: Text(_currentUser!.nomeFuncionario)
),
),
),
],
),
SizedBox(height: 20.0),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Expanded(
flex: 1,
child: Container(
child: InputDecorator(
decoration: InputDecoration(
labelText: "Email",
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
child: Text(_currentUser!.email)
),
),
),
],
),
SizedBox(height: 20.0),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Expanded(
flex: 1,
child: Container(
child: InputDecorator(
decoration: InputDecoration(
labelText: "Senha",
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
child: Text(_currentUser!.senha)
),
),
),
],
),
SizedBox(height: 20.0),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Expanded(
flex: 1,
child: Container(
child: InputDecorator(
decoration: InputDecoration(
labelText: "Ultima Atualizacao",
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
child: Text(_currentUser!.ultimaAtualizacao)
),
),
),
SizedBox(width: 10.0),
Expanded(
flex: 1,
child: Container(
child: InputDecorator(
decoration: InputDecoration(
labelText: "Atualizado Por",
floatingLabelBehavior:FloatingLabelBehavior.always,
border: OutlineInputBorder(),
),
child: Text(_currentUser!.atualizadoPor)
),
),
),
],
),
],
),
)
: Text("No User selected"),
],
)
],
),
);
}
}
I only have one textField now because I'm still experimenting things. what I wanted to do is update the value of the text with the info I retrieved from the query for example: _currentUser!.perfil.toString(), which holds a string that represent the type of user
CodePudding user response：
If you've assigned a TextEditingController to Textfield you can simply manipulate value in by
myTextEditingController.text = "new value";