Reputation: 37
I tried to save image in image upload form using image picker, I used "OnSaved" but there are error said "The named Parameter OnSaved isnt defined. How can I solve this?
This is the code that i use :
onSaved: (val) => _image = val,
This is the complete code:
import 'dart:io';
import 'package:image_picker/image_picker.dart';
class NewPostScreen extends StatefulWidget {
@override
_NewPostScreen createState() => _NewPostScreen();
}
class _NewPostScreen extends State<NewPostScreen> {
File _image;
Future getImageFromGallery() async {
var image = await ImagePicker.pickImage(source: ImageSource.gallery);
setState(() {
_image = image;
});
}
@override
Widget build(BuildContext context) {
// TODO: implement build
return Container(
child: Scaffold(
key: _scaffoldkey,
appBar: AppBar(
backgroundColor: Colors.blue,
title: new Text("Create Post"),
),
resizeToAvoidBottomPadding: false,
body: SingleChildScrollView(
padding: new EdgeInsets.all(8.0),
child: Form(
key: _formkey,
child: Column(
children: <Widget>[
new TextFormField(
decoration: new InputDecoration(
/*hintText: "Tujuan",*/
labelText: "Tujuan"),
onSaved: (String val) => destination = val,
),
Padding(
padding: const EdgeInsets.all(15.0),
child: Center(
child: _image == null
? Text('Upload Foto')
: Image.file(_image),
onSaved: (val) => _image = val,
),
),
SizedBox(
width: 100.0,
height: 100.0,
child: RaisedButton(
onPressed: getImageFromGallery,
child: Icon(Icons.add_a_photo),
)),
Upvotes: 2
Views: 2121
Reputation: 1421
there is no onSaved
property in the Center
widget. You can use a button instead and utilize the onPressed
property or any other approach that you prefer.
Upvotes: 1