Reusing a Widget with Setters - flutter

Question

New to Dart/Flutter and unsure if this is the proper way of going about this, but I want to make a class for an ElevatedButton widget that I can use over-and-over and only need to set the text and callback (onPressed) for each instance of ElevatedButton.
For now I'm just trying to get to the point where I can make a list of Widgets (ElevatedButtons) where I set each button text, but am struggling. This is what I have:
class AElevatedButton extends StatefulWidget
{
AElevatedButton({Key? key}) : super(key:key);
#override
State<AElevatedButton> createState() => ElevatedButtonState();
}
class ElevatedButtonState extends State<AElevatedButton>
{
String buttonText = "Button";
void setText(String buttonText) {
setState(() {
this.buttonText = buttonText;
});
}
#override
Widget build(BuildContext context) {
return Container(
margin: const EdgeInsets.all(5),
child: ElevatedButton(
onPressed: null,
child: Text(buttonText)
)
);
}
}
In my "home page" State I have below but am not able to access the "setText" method in ElevatedButtonState, which somewhat makes sense as I'm creating a ElevatedButton object and not a ElevatedButtonState. Unsure if there is a way to get the state so I can call the method?
class _MyHomePageState extends State<MyHomePage>
{
AElevatedButton firstButton = new AElevatedButton();
AElevatedButton secondButton = new AElevatedButton();
void initiateButtons()
{
firstButton.setText("Button 1"); <---- error
secondButton.setText("Button 2"); <---- error
}
#override
Widget build(BuildContext context) {
initiateButtons();
return Scaffold(
appBar: AppBar(
title: const Text("Test Buttons")
),
body:
Column(
children: <Widget>[
firstButton,
secondButton
])
);
}
}

Answer 1

It seems that what you're making is more or less a wrapper of an existing widget with your own customization. This is rather common in Flutter, and actually its how a lot of material widgets are implemented, just setting up a bunch of properties with a predefined state.
In your case the correct way to achieve what you want, is to make a new class just as you did, but you don't need to create setters to change the state/attributes of your new widgets. Simply pass them in the constructors of your new class, for example:
class AElevatedButton extends StatelessWidget {
final String text;
final VoidCallback? onTap;
const AElevatedButton({required this.text,this.onTap});
#override
Widget build(BuildContext context) {
return Container(
margin: const EdgeInsets.all(5),
child: ElevatedButton(
onPressed: onTap,
child: Text(text)
)
);
}}
Here there is only text and onTap, but you could add more attributes as your necessities change, and to use them is just like any other flutter widget:
class _MyHomePageState extends State<MyHomePage>
{
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text("Test Buttons")
),
body:
Column(
children: <Widget>[
AElevatedButton(text:"Button 1",onTap:testcallback1),
AElevatedButton(text:"Button 2",onTap:testcallback2)
])
);
}
}
If I missed any point or could clarify something more, do comment.

Answer 2

After some experimenting, I got a solution but unsure if this is the best way:
class AElevatedButton extends StatefulWidget
{
AElevatedButton({Key? key}) : super(key:key);
String buttonText = "Default";
Function() cb = nothingfunc;
#override
State<AElevatedButton> createState() => ElevatedButtonState();
}
class ElevatedButtonState extends State<AElevatedButton>
{
#override
Widget build(BuildContext context) {
return Container(
margin: const EdgeInsets.all(5),
child: ElevatedButton(
onPressed: widget.cb,
child: Text(widget.buttonText)
)
);
}
}
And the homepage State:
AElevatedButton firstButton = new AElevatedButton();
AElevatedButton secondButton = new AElevatedButton();
void initiateButtons()
{
firstButton.buttonText = "Button 1";
firstButton.cb = testcallback1;
secondButton.buttonText = "Button 2";
secondButton.cb = testcallback2;
}
Some misc. functions added for testing above:
void nothingfunc()
{
}
void testcallback1()
{
print("Button 1 pressed");
}
void testcallback2()
{
print("Button 2 pressed");
}