sort_child_properties_last

The '{0}' argument should be last in widget constructor invocations.

The analyzer produces this diagnostic when the child or children argument isn't the last argument in an invocation of a widget class' constructor. An exception is made if all of the arguments after the child or children argument are function expressions.

The following code produces this diagnostic because the child argument isn't the last argument in the invocation of the Center constructor:

import 'package:flutter/material.dart';

Widget createWidget() {
  return Center(
    child: Text('...'),
    widthFactor: 0.5,
  );
}

Move the child or children argument to be last:

import 'package:flutter/material.dart';

Widget createWidget() {
  return Center(
    widthFactor: 0.5,
    child: Text('...'),
  );
}

Unless stated otherwise, the documentation on this site reflects Dart 3.8.1. Page last updated on 2025-05-08. View source or report an issue.