У меня вопрос о том, как закрыть соответствующий виджет на основе индекса кнопки закрытия. здесь, на этом изображении, вы можете увидеть результат, поэтому здесь я добавляю некоторый виджет, используя кнопку добавления, расположенную внутри панели приложения, теперь я добавил кнопку закрытия внутри контейнера, когда пользователь нажал кнопку закрытия, он удалит этот контейнер.
Вот изображение вывода:
Вот код, который я пробовал
class BspUnlicensedSignupPage extends StatefulWidget {
static const String routeName = "/bspUnlicensedSignup";
final BspSignupCommonModel bspSignupCommonModel;
BspUnlicensedSignupPage({
Key key,
@required this.bspSignupCommonModel,
}) : super(key: key);
@override
_BspUnlicensedSignupPageState createState() =>
_BspUnlicensedSignupPageState();
}
class _BspUnlicensedSignupPageState extends State<BspUnlicensedSignupPage> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
List<Object> images = List<Object>();
Future<File> _imageFile;
bool autovalidate = false;
bool informationislegitimate = false;
DateTime expirydate1 = DateTime.now();
DateTime expirydate2 = DateTime.now();
final format = DateFormat("yyyy-MM-dd");
final format2 = DateFormat("yyyy-MM-dd");
String type2 = 'Passport';
List<String> _type = <String>[
'',
'Passport',
'Driving License',
'Voter ID card',
'Ration Card',
'Aadhar',
'Other Id',
];
String type = 'Passport';
var _myWidgets = List<Widget>();
int _index = 3;
final Map<int, String> identification1Values = Map();
final Map<int, String> documentValues = Map();
final Map<int, DateTime> expiryDateValues = Map();
final Map<int, String> issuingAuthority = Map();
final Map<int, String> identificationPicturesValues = Map();
final List<TextEditingController> _documentControllers = List();
final List<TextEditingController> _issuingauthoritytype = List();
final List<TextEditingController> _expiryDate = List();
final List<TextEditingController> _issuingauthority = List();
final List<List<Object>> _identificationpictures = List();
@override
void initState() {
super.initState();
setState(() {
images.add("Add Image");
images.add("Add Image");
images.add("Add Image");
images.add("Add Image");
images.add("Add Image");
});
}
void _add() {
int keyValue = _index;
_myWidgets = List.from(_myWidgets)
..add(Column(
key: Key("$keyValue"),
children: <Widget>[
SizedBox(height: 10),
Container(
// padding: EdgeInsets.fromLTRB(18,5,18,18),
padding: EdgeInsets.all(15),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(10),
boxShadow: [
BoxShadow(
color: Colors.black12,
blurRadius: 15,
),
],
),
child: Column(
children: <Widget>[
Stack(
children: <Widget>[
Align(
alignment: Alignment.topRight,
child: GestureDetector(
child: Icon(Icons.close),
onTap: () {
print("CLose pressed");
_myWidgets.removeAt(_index);
},
),
),
SizedBox(
height: 10,
),
Column(
children: <Widget>[
SizedBox(
height: 20,
),
_buildidentificationtype1(keyValue),
_builddocumentnumber1(keyValue),
_builddate(keyValue),
_buildissuingauthority1(keyValue),
_buildidentificationpictures(keyValue),
],
),
],
)
],
),
)
],
));
setState(() => ++_index);
}
bool isClicked = false;
Widget _buildidentificationtype1(int keyValue) {
TextEditingController controller = TextEditingController();
_issuingauthoritytype.add(controller);
return FormBuilder(
autovalidate: autovalidate,
child: FormBuilderCustomField(
attribute: "Business type",
validators: [FormBuilderValidators.required()],
formField: FormField(
builder: (FormFieldState<dynamic> field) {
return InputDecorator(
decoration: InputDecoration(
prefixIcon: Icon(Icons.location_on),
labelText: "Business type",
errorText: field.errorText,
),
isEmpty: type == '',
child: new DropdownButtonHideUnderline(
child: new DropdownButton(
value: type,
isDense: true,
onChanged: (String newValue) {
setState(() {
type = controller.text = newValue;
field.didChange(newValue);
});
},
items: _type.map(
(String value) {
return new DropdownMenuItem(
value: value,
child: new Text(value),
);
},
).toList(),
),
),
);
},
)),
);
}
Widget _builddocumentnumber1(int keyValue) {
TextEditingController controller = TextEditingController();
_documentControllers.add(controller);
return new TudoTextWidget(
controller: controller,
prefixIcon: Icon(FontAwesomeIcons.idCard),
labelText: "Document Number",
validator: Validators().validateLicenseno,
onSaved: (val) {
setState(() {
documentValues[keyValue] = val;
});
// _licenseno = val;
},
);
}
Widget _builddate(int keyValue) {
TextEditingController controller = TextEditingController();
_expiryDate.add(controller);
return DateTimeField(
format: format,
autocorrect: true,
autovalidate: autovalidate,
controller: controller,
readOnly: true,
decoration: InputDecoration(
labelText: "Expiry Date",
hintText: "Expiry Date",
prefixIcon: Icon(
FontAwesomeIcons.calendar,
size: 24,
)),
onShowPicker: (context, currentValue) {
return showDatePicker(
context: context,
firstDate: DateTime(1900),
initialDate: currentValue ?? DateTime.now(),
lastDate: DateTime.now());
},
);
}
Widget _buildissuingauthority1(int keyValue) {
TextEditingController controller = TextEditingController();
_issuingauthority.add(controller);
return new TudoTextWidget(
prefixIcon: Icon(FontAwesomeIcons.idCard),
labelText: "Issuing Authority",
validator: (val) => Validators.validateName(val, "Issuing Authority"),
onSaved: (val) {
setState(() {
issuingAuthority[keyValue] = val;
});
},
controller: controller,
);
}
Widget _buildidentificationpictures(int keyValue) {
return GridView.count(
physics: NeverScrollableScrollPhysics(),
shrinkWrap: true,
crossAxisCount: 5,
childAspectRatio: 1,
children: List.generate(images.length, (index) {
if (images[index] is ImageUploadModel) {
ImageUploadModel uploadModel = images[index];
return Card(
clipBehavior: Clip.antiAlias,
child: Stack(
children: <Widget>[
Image.file(
uploadModel.imageFile,
width: 300,
height: 300,
),
Positioned(
right: 5,
top: 5,
child: InkWell(
child: Icon(
Icons.remove_circle,
size: 20,
color: Colors.red,
),
onTap: () {
setState(() {
images.replaceRange(index, index + 1, ['Add Image']);
});
},
),
),
],
),
);
} else {
return Card(
child: IconButton(
icon: Icon(Icons.add),
onPressed: () {
_onAddImageClick(index);
},
),
);
}
}),
);
}
@override
Widget build(BuildContext context) {
final appBar = AppBar(
title: Text("BSP Unlicensed Details"),
leading: IconButton(
icon: Icon(Icons.arrow_back_ios),
onPressed: () {
NavigationHelper.navigatetoBack(context);
},
),
actions: <Widget>[IconButton(icon: Icon(Icons.add), onPressed: _add)],
centerTitle: true,
);
final bottomNavigationBar = Container(
color: Colors.transparent,
height: 56,
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
new FlatButton.icon(
icon: Icon(Icons.close),
label: Text('Clear'),
color: Colors.redAccent,
textColor: Colors.black,
padding: EdgeInsets.symmetric(vertical: 10, horizontal: 30),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(7),
),
onPressed: () {},
),
new FlatButton.icon(
icon: Icon(FontAwesomeIcons.arrowCircleRight),
label: Text('Next'),
color: colorStyles["primary"],
padding: EdgeInsets.symmetric(vertical: 10, horizontal: 30),
textColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(7),
),
onPressed: () async {
setState(() {
autovalidate = !autovalidate;
});
if (_formKey.currentState.validate()) {
BspSignupCommonModel model = widget.bspSignupCommonModel;
for (var i = 0; i < _myWidgets.length; i++) {
String document = _documentControllers[i].text;
String issuingAuthorityType = _issuingauthoritytype[i].text;
String expiryDate = _expiryDate[i].text;
String issuingAuthority = _issuingauthority[i].text;
// String picture = _identificationpictures[i].text;
print('Document: $document');
print('IssuingAuthorityType: $issuingAuthorityType');
print('ExpiryDate: $expiryDate');
print('IssuingAuthority: $issuingAuthority');
print('Picture: ${_identificationpictures.length}');
print(_myWidgets.length);
List<Licensed> listOfLicenses = new List<Licensed>();
Licensed licensed = new Licensed(
bspLicenseNumber: document,
bspAuthority: issuingAuthority,
bspExpiryDate: expiryDate,
bspIssuing: issuingAuthorityType);
licensed.bspLicenseNumber = _documentControllers[i].text;
licensed.bspExpiryDate = _expiryDate[i].text;
licensed.bspIssuing = _issuingauthoritytype[i].text;
licensed.bspAuthority = _issuingauthority[i].text;
listOfLicenses.add(licensed);
model.unlicensed = listOfLicenses;
}
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => BspLicensedSignupTermsPage(
bspSignupCommonModel: model)));
}
}),
],
),
);
return new Scaffold(
appBar: appBar,
bottomNavigationBar: bottomNavigationBar,
body: Container(
height: double.infinity,
width: double.infinity,
child: Form(
autovalidate: autovalidate,
key: _formKey,
child: Stack(
children: <Widget>[
Column(
children: <Widget>[
Expanded(
child: SizedBox(
child: ListView(
padding: const EdgeInsets.all(18.0),
children: _myWidgets,
),
),
),
],
)
],
)),
),
);
}
}