How to convert double to string in Text Widget in Flutter - string

Question

I create two pages first page is home page which display the image and name, second page is the detail page which shows image, name and price. Now problem is if i click on the image it should be display the image,name and price in second page but it is showing an error of type 'double' is not a subtype of type string even i tried to convert it to string. Below is the code of two pages and one dart class model.
HomePage.dart
class Home extends StatefulWidget {
#override
_HomeState createState() => _HomeState();}
class _HomeState extends State<Home> {
List<Product> _product=[
Product(
name: "Small Cake",
image: "assets/1.png",
price: 50.00,
),];
#override
Widget build(BuildContext context) {
return PlatformScaffold(
body: ListView.builder(
itemCount: _product.length,
itemBuilder: (BuildContext context, int index) {
return Products(
product_image: _product[index].image,
product_name: _product[index].name,
product_price: _product[index].price,);}));}}
class Products extends StatelessWidget {
final product_name;
final product_image;
final product_price;
Products({this.product_name, this.product_image, this.product_price});
#override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.only(
top: 35.0, bottom: 15.0, left: 20.0, right: 20.0),
child: GestureDetector(
onTap: (){
Navigator.of(context).push(MaterialPageRoute(builder: (context) => Quantities(
productname: product_name,
productprice: product_price,
productimage: product_image,
)));},
child: Container(
child: new FittedBox(
child: Material(
color: Colors.white,
elevation: 15.0,
borderRadius: BorderRadius.circular(15.0),
shadowColor: Color(0x802196F3),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
width: 250,
height: 200,
child: ClipRRect(
borderRadius: new BorderRadius.circular(15.0),
child: new Image.asset(
product_image,
fit: BoxFit.cover,),),),
Padding(
padding: const EdgeInsets.only(top: 5.0,bottom: 5.0),
child: Text(product_name,style: TextStyle(color: Colors.blueGrey[700],
fontWeight: FontWeight.bold,fontSize: 18.0),),),],)),),),),);}}
Quantities.dart
class Quantities extends StatefulWidget {
var productprice;
String productimage;
final productname;
Quantities({this.productprice, this.productimage, this.productname});
#override
_QuantitiesState createState() => _QuantitiesState(productprice,productimage,productname);
}
class _QuantitiesState extends State<Quantities> {
final productprice;
final productimage;
final productname;
var finalprice;
_QuantitiesState(this.productprice, this.productimage, this.productname);
#override
void initState() {
finalprice=double.parse(productprice);// tried to convert into string
super.initState();}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('Details'),),
body: Container(
child: Column(
children: <Widget>[
Container(
height: 200.0,
child: GridTile(
child: Container(
color: Colors.white,
child: Image.asset(productimage),),),),
Text(productname),
Text(finalprice.toString()),// This line getting an error of type double is not a subtype of string
],),),);}}
Product.dart
class Product {
String name;
String image;
double price;
Product({this.name, this.price,this.image});}

Answer 1

Double To String
productprice.toString().
String To Double
double.parse(productprice.toString())