expansion_card

Package Overview

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The expansion_card package provides a customizable Flutter widget that enables collapsible cards with optional animated image backgrounds. Ideal for displaying expandable content such as FAQs, detailed information, or interactive sections, it supports smooth animations and responsive design across all major platforms. Developers can tailor the card's appearance, behavior, and transition effects to match their app’s UI. The package is lightweight and integrates seamlessly into existing Flutter projects.

Use cases

Displaying FAQ sections
Showing detailed product information
Creating interactive accordions
Presenting layered content in forms
Enhancing user onboarding flows

Key features

Customizable card styling
Animated image backgrounds
Smooth expand/collapse transitions
Cross-platform support
Easy integration with Flutter
Configurable animation duration

Suitable for

Developers building interactive UIs
Apps needing expandable content sections
Designers seeking animated card components
Projects targeting multiple platforms
UI-heavy applications with dynamic content

Considerations

May impact performance with many instances
Image background loading requires careful optimization
Animation settings should be tuned for smooth UX
Limited built-in accessibility features
Not suitable for static content only

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

Expansion card

This package provides an easy implementation of a Expansion type card where you can also add gif at the background.

How to use

import 'package:expansion_card/expansion_card.dart';

Center(
            child: ExpansionCard(
              background: Image.asset("assets/animations/sleep.gif"),
              title: Container(
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: <Widget>[
                    Text(
                      "Header",
                      style: TextStyle(
                        fontFamily: 'BalooBhai',
                        fontSize: 30,
                        color: Colors.white,
                      ),
                    ),
                    Text(
                      "Sub",
                      style: TextStyle(
                          fontFamily: 'BalooBhai', fontSize: 20, color: Colors.white),
                    ),
                  ],
                ),
              ),
              children: <Widget>[
                Container(
                  margin: EdgeInsets.symmetric(horizontal: 7),
                  child: Text("Content goes over here !",
                      style: TextStyle(
                          fontFamily: 'BalooBhai',
                          fontSize: 20,
                          color: Colors.white)),
                )
              ],
            ));

Custom Usage

There are several options that allow for more control:

Properties	Description
`leading`	Define an action after slidding a button
`background`	provide any image asset file (supports gif also)
`onExpansionChanged`	When the tile starts expanding, this function is called with the value true. When the tile starts collapsing, this function is called with the value false.
`trailing`	A widget to display instead of a rotating arrow icon
`initiallyExpanded`	Specifies if the list tile is initially expanded (true) or collapsed (false, the default)

👍 Contribution

Fork it
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -m 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create new Pull Request

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