How to set Box Shadow for Container Widget in Flutter?

Flutter – Container Box Shadow

To set box shadow for Container widget, set its decoration property with a BoxDecoration object. Inside BoxDecoration, set boxShadow property with required array of BoxShadow objects.

Sample Code

A quick code snippet to set box shadow for Container widget with specific colors, offset, and radii is

Container(
  decoration: BoxDecoration(
    boxShadow: const [
      BoxShadow(
        color: Colors.grey,
        blurRadius: 5,
        spreadRadius: 1,
        offset: Offset(4, 4)
      ),
    ],
  ),
)

Example

In the following example, we create a Flutter Application with a Container widget, and set its box shadow with color of grey, blur radius of 5, spread radius of 1, and an offset of (4, 4).

main.dart

import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  static const String _title = 'Flutter Tutorial';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: _title,
      home: Scaffold(
        appBar: AppBar(title: const Text(_title)),
        body: const MyStatefulWidget(),
      ),
    );
  }
}

class MyStatefulWidget extends StatefulWidget {
  const MyStatefulWidget({Key? key}) : super(key: key);

  @override
  State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}

class _MyStatefulWidgetState extends State<MyStatefulWidget> {
  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        children: <Widget>[
          const SizedBox(height: 10,),
          Container(
            height: 200,
            width: 200,
            alignment: Alignment.center,
            decoration: BoxDecoration(
              borderRadius: BorderRadius.circular(10),
              boxShadow: const [
                BoxShadow(
                  color: Colors.grey,
                  blurRadius: 5,
                  spreadRadius: 1,
                  offset: Offset(4, 4)
                ),
              ],
              color: Colors.green[200],
            ),
            child: const Text('Container 1'),
          ),
        ]
      ),
    );
  }
}

Screenshot – iPhone Simulator

Screenshot – Android Emulator

Conclusion

In this Flutter Tutorial, we learned how to set box shadow for Container widget, with examples.