Using FontAwesomeIcons with value from custom class in Flutter - flutter

Question

I'm trying to use fontawesome together with flutter. Depending on certain content of an Item I'd like to display a certain Icon from fontawesome.
Transaction(id: 1, title: 'lunch', amount: -23.10, type:'utensils'),
Transaction(id: 2, title: 'new shows', amount: -59.99, type:'tshirt'),
Transaction(id: 3, title: 'Falcon launch', amount: -62000000, type:'rocket')
so, I'd like to use the type as an indicator for my fontawesome icon.
When using FontAwesomeIcons.rocket, everything works quite well.
Column(children: <Widget>[
Card(
child: IconButton(
onPressed: null,
icon: new Icon(FontAwesomeIcons.rocket),
),
elevation: 0,
)
],),
since I'm using the map function I'm able to call the type itself without an issue like Text(tx.type). Is there a way to replace the static (in my case) rocket with the type from my transaction class? I'm trying to avoid if/switch cases at the moment just to get the basics going.
Any help very appreciated.

Answer 1

You can copy paste run full code below
You can use https://pub.dev/packages/icons_helper
just prefix rocket with fa.rocket
code snippet
Icon(getIconUsingPrefix(name: 'fa.rocket'),
color: Theme.of(context).backgroundColor, size: 60.0),
working demo
full code
import 'package:flutter/material.dart';
import 'package:icons_helper/icons_helper.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo + Icon Helper Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
Map iconMap = {"a":'fa.rocket'};
void _incrementCounter() {
setState(() {
_counter++;
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Icon(getIconUsingPrefix(name: 'fa.fiveHundredPx'),
color: Theme.of(context).backgroundColor, size: 60.0),
Icon(getIconUsingPrefix(name: 'fa.rocket'),
color: Theme.of(context).backgroundColor, size: 60.0),
Icon(getIconUsingPrefix(name: iconMap["a"]),
color: Theme.of(context).backgroundColor, size: 60.0),
Text(
'There should be an icon above. It\'s neat, isn\'t?\n\nYou can also push the + button and increment this counter for fun:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.display1,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
),
);
}
}