What is the relation between stateful and stateless widgets in Flutter?

A StatelessWidget will never rebuild by itself (but can from external events). A StatefulWidget can. That is the golden rule. BUT any kind of widget can be repainted any times. Stateless only means that all of its properties are immutable and that the only way to change them is to create a new instance of … Read more

Passing Data to a Stateful Widget in Flutter

Don’t pass parameters to State using it’s constructor. You should only access the parameters using this.widget.myField. Not only editing the constructor requires a lot of manual work ; it doesn’t bring anything. There’s no reason to duplicate all the fields of Widget. EDIT : Here’s an example: class ServerIpText extends StatefulWidget { final String serverIP; … Read more

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