How to run code when Stateless widget is created

Question

I have a screen made using Stateless Widget.
I want to run some code when the screen is loaded or when the Stateless widget is created.

In android we could do this in onCreate() method.
i.e. is there some equivalent of onCreate() in flutter.

You can use a StatefulWidget instead and use the initState method, if you are modifying the state of the widget. — NiklasPor
– NiklasPor, Commented Mar 28, 2019 at 9:26
Is this the only way. Because I won't be modifying any state of the widget. — Mangaldeep Singh Pannu
– Mangaldeep Singh Pannu, Commented Mar 28, 2019 at 9:28
You can simply include it in your main method: void main() => {startAlarm(); runApp(MyApp());} — NiklasPor
– NiklasPor, Commented Mar 28, 2019 at 9:39
umm, depends on what you mean by created.. why not just use the constructor? — Herbert Poul
– Herbert Poul, Commented Mar 28, 2019 at 10:27

mirkancal · Accepted Answer · 2019-03-28 11:08:29Z

2

The terminology for this is "mount". So you want to run the code when the widget is mounted. In Flutter, all widgets have a mounted property and it turns true when the buildContext is assigned to a widget.

But I don't think you can do something to workaround with that property.

bool get mounted => _element != null;

relevant line

I think what you can do is turn your widget into Stateful widget and use initState()

answered Mar 28, 2019 at 11:08

mirkancal

5,4379 gold badges42 silver badges83 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to run code when Stateless widget is created

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related