Working with the Flutter SizedOverflowBox Widget

The SizedOverflowBox widget in Flutter is similar to the SizedBox widget, but it provides additional control over the overflow behavior of its child widget. It allows you to specify a maximum size for the child widget and control what happens when the child widget exceeds that size. 

In this article, we will explore the properties of the SizedOverflowBox widget and provide a code sample to demonstrate its usage.

Learn about the properties, code sample, and usage of the SizedOverflowBox widget in Flutter to control the size and overflow behavior of your widgets.

Code Sample:

 Container(
                color: Colors.grey[300],
                child: SizedOverflowBox(
                  size: const Size(100, 100),
                  alignment: Alignment.topLeft,
                  child: Container(
                    height: 50.0,
                    width: 250.0,
                    color: Colors.blue,
                  ),
                ),
              ),

..

Properties:

• size (required): a Size object that specifies the maximum size for the child widget.
• alignment (optional): an Alignment object that controls the position of the child widget within the SizedOverflowBox.
• child (required): a widget that is placed inside the SizedOverflowBox.

Full code:

import 'package:flutter/material.dart';

class SizedOverflowBoxDemo extends StatelessWidget {
  const SizedOverflowBoxDemo({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('SizedOverflowBox Demo'),
      ),
      body: SingleChildScrollView(
        child: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            mainAxisSize: MainAxisSize.max,
            children: [
              // Top Left alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.topLeft,
              ),
              // Top Center alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.topCenter,
              ),
              // Top Right alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.topRight,
              ),
              // Center Left alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.centerLeft,
              ),
              // Center alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.center,
              ),
              // Center Right alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.centerRight,
              ),
              // Bottom Left alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.bottomLeft,
              ),
              // Bottom Center alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.bottomCenter,
              ),
              // Bottom Right alignment
              _buildSizedOverflowBox(
                size: const Size(100, 100),
                alignment: Alignment.bottomRight,
              ),
            ],
          ),
        ),
      ),
    );
  }

  Widget _buildSizedOverflowBox({required Size size, required Alignment alignment}) {
    return Container(
      color: Colors.grey[300],
      child: SizedOverflowBox(
        size: size,
        alignment: alignment,
        child: Container(
          height: 50.0,
          width: 250.0,
          color: Colors.blue,
        ),
      ),
    );
  }
}

..