你好，我是一名学生，一个学徒，我试着将我的dropdownbutton的内容放在一个变量中，以便像我在照片上看到的那样在showDialog（_showDialogVerif）上获取所有信息。对于我所有的TextFormField。请帮助我。
class _DropDownState extends State<DropDown> {
final formkey = new GlobalKey<FormState>();
String depart;
String destination;
String poids;
String dimensions;
String nomDest;
String prenomDest;
String emailDest;
String telephone;
String quartier;
String precision;
mailValidation(){
if (validateAndSave()){
_showDialogVerif('Vérification et validation',
"Les informations que vous avez entrées sont les suivantes:" '\n\n'
"Nom dest: "+nomDest+ '\n\n'
"Prénom dest: "+prenomDest+ '\n\n'
"Téléphone dest: "+telephone+ '\n\n'
"Quartier dest: "+quartier+ '\n\n'
"Précison: "+precision+ '\n\n'
"Bien vouloir CONFIRMER si vous etes d'accord, si non appuyez sur RETOUR pour modifier",
);
}
}
bool validateAndSave(){
final form = formkey.currentState;
if (form.validate()){
form.save();
return true;
}
return false;
}
// Here we're going to define the LIST
List _citiesdept = ["Douala","Yaoundé"];
List _citiesarriv = ["Douala","Yaoundé"];
List _weight = ["0-1 KG","1-3 KG","3-5 KG"];
List _dimensions = ["A5","A4","A3","A2"];
// End
var resultsList = new List.filled(4, "");
@override
void initState(){
// Here we're going to set the initial values
resultsList[0] = "Douala";
resultsList[1] = "Douala";
resultsList[2] = "0-1 KG";
resultsList[3] = "A5";
return super.initState();
}
_fieldDropDown(List theList, int resultPosition, var dbField) {
return new FormField(
builder: (FormFieldState state) {
return InputDecorator(
decoration: InputDecoration(),
child: new DropdownButtonHideUnderline(
child: new DropdownButton(
value: this.resultsList[resultPosition],
isDense: true,
onChanged: (dynamic newValue) {
setState(() {
this.resultsList[resultPosition] = newValue;
state.didChange(newValue);
print(
'The List result = ' + this.resultsList[resultPosition]);
//write newValue to a database field, which can be used in the override init to set the field originally
});
},
// Comment to remove Error
items: theList.map((dynamic value) {
return new DropdownMenuItem(
value: value,
child: new Text(value),
);
}).toList(),
),
),
);
},
);
}
}
你好，我是一名学生，一个学徒，我试着将我的dropdownbutton的内容放在一个变量中，以便像我在照片上看到的那样在showDialog（_showDialogVerif）上获取所有信息。对于我所有的TextFormField。请帮助我。
