Access List flutter from one dart to another - list

Question

How to access variable availableList below from one dart to another
class Excerciselist extends StatefulWidget {
final String value;
Excerciselist( this.value );
#override
State<StatefulWidget> createState() {
// TODO: implement createState
return _MyExc(); }
}
ImageSequenceAnimatorState imageSequenceAnimator;
void onReadyToPlay(ImageSequenceAnimatorState _imageSequenceAnimator) {
imageSequenceAnimator = _imageSequenceAnimator;
}
final List<Exercise> availableList = [
Exercise(
name: "Pushups",
imageUrl: "imagesfirst",
duration: "20"),
Exercise(
name: "Chinups",
imageUrl: "second",
duration: "20"),
Exercise(
how can i access availableList variable in another dart file?

Answer 1

class Excerciselist {
String name;
String imageUrl;
String duration;
Excerciselist({
this.name,
this.imageUrl,
this.duration,
});
static List<Excerciselist> availableList = [
Excerciselist(name: "Pushups", imageUrl: "imagesfirst", duration: "20"),
Excerciselist(name: "Chinups", imageUrl: "second", duration: "20"),
];
}
then import it to you file and you can list the items, for example:
import 'package:flutter/material.dart';
import 'Excerciselist.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
List _list = Excerciselist.availableList;
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: ListView(
children: [
..._list.map((data) {
return Column(
children: [Text('${data.name}'), Text('${data.imageUrl}')],
);
})
].toList()),
));
}
}
================
you can also create an instance and methods for manipulating you data, for example to find the total duration.
class Excerciselist {
// adding these two lines
static Excerciselist instance = Excerciselist._();
Excerciselist._();
// ==
String name;
String imageUrl;
String duration;
Excerciselist({
this.name,
this.imageUrl,
this.duration,
});
static List<Excerciselist> availableList = [
Excerciselist(name: "Pushups", imageUrl: "imagesfirst", duration: "20"),
Excerciselist(name: "Chinups", imageUrl: "second", duration: "20"),
];
// Create the method
durationOf() {
int totalDur = 0;
availableList.forEach((element) {
totalDur = totalDur + int.parse(element.duration);
});
return totalDur;
}
//
}
and you can call it in your main file:
Excerciselist <name> = Excerciselist.instance;
then use it in your widget: <name>.durationOf()

Answer 2

import this file like mak said.
Making use of State management solutions like riverpod and provider will be more cleaner.