no_logic_in_create_state

Don't put any logic in 'createState'.

The analyzer produces this diagnostic when an implementation of createState in a subclass of StatefulWidget contains any logic other than the return of the result of invoking a zero argument constructor.

The following code produces this diagnostic because the constructor invocation has arguments:

import 'package:flutter/material.dart';

class MyWidget extends StatefulWidget {
  @override
  MyState createState() => MyState(0);
}

class MyState extends State {
  int x;

  MyState(this.x);
}

Rewrite the code so that createState doesn't contain any logic:

import 'package:flutter/material.dart';

class MyWidget extends StatefulWidget {
  @override
  MyState createState() => MyState();
}

class MyState extends State {
  int x = 0;

  MyState();
}

除非另有说明，文档之所提及适用于 Dart 3.7.3 版本，本页面最后更新时间: 2025-05-08。 查看文档源码 或者 报告页面问题。