AspectRatio widget and Attributes

The AspectRatio widget in Flutter is used to enforce a specific aspect ratio for its child widget. It's commonly used to maintain the aspect ratio of a widget regardless of the parent's constraints, ensuring that the child widget maintains its desired width-to-height ratio.

Attributes:

1. aspectRatio (double):

   • The desired aspect ratio to enforce for the child widget. It's specified as a ratio of width to height.

2. child (Widget):

   • The child widget whose aspect ratio needs to be maintained.

Example:

import 'package:flutter/material.dart';

class AspectRatioExample extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('AspectRatio Widget Example'),
      ),
      body: Center(
        child: AspectRatio(
          aspectRatio: 16 / 9, // Example aspect ratio: 16:9
          child: Container(
            color: Colors.blue,
            child: Center(
              child: Text(
                'Aspect Ratio Example',
                style: TextStyle(color: Colors.white),
              ),
            ),
          ),
        ),
      ),
    );
  }
}

void main() {
  runApp(MaterialApp(
    home: AspectRatioExample(),
  ));
}

In this example:

• An AspectRatio widget is used to enforce a 16:9 aspect ratio for its child widget.

• The aspectRatio attribute is set to 16 / 9, which represents the desired width-to-height ratio.

• Inside the AspectRatio widget, a Container widget is used as the child widget, with a blue background color.

• The child widget's content, a Text widget with the text "Aspect Ratio Example", is centered within the Container.

• When you run this code, the child widget will maintain a 16:9 aspect ratio, ensuring that it retains its proportionality even as the parent's constraints change.