Flutter Romantic Expandable Card with folding effect

A Flutter package to create a Romantic Expandable Card with folding effect. It will be useful for your awesome app. This widget is created to be standalone with any widgets, helps you able to add to any complex design.

This is a present from Romantic Project. More from Romantic Developer

Example

import 'package:flutter/material.dart';
import 'package:flutter_folding_card/flutter_folding_card.dart';

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

const _kImageUrls = [
  "https://scontent-hkg4-1.xx.fbcdn.net/v/t1.6435-9/240669493_3093165274342302_7696944317595605164_n.jpg?_nc_cat=107&ccb=1-5&_nc_sid=730e14&_nc_ohc=QRmRTo3bJOQAX_u8ELe&_nc_ht=scontent-hkg4-1.xx&oh=374ca65aaff7a46dfd4d2f14aff72b11&oe=614F64BC",
  "https://scontent-hkg4-2.xx.fbcdn.net/v/t1.6435-9/240758821_3092745557717607_1758983175902930666_n.jpg?_nc_cat=109&ccb=1-5&_nc_sid=730e14&_nc_ohc=z0srgae32A4AX_oURvc&_nc_ht=scontent-hkg4-2.xx&oh=e981297264aca64a25aaf285259f41d7&oe=614CDEA1",
  "https://scontent-hkg4-1.xx.fbcdn.net/v/t1.6435-9/240624734_3092487924410037_2111143168440995076_n.jpg?_nc_cat=107&ccb=1-5&_nc_sid=730e14&_nc_ohc=TZukbOFjxowAX8IYthH&_nc_ht=scontent-hkg4-1.xx&oh=59dd511589b6dbdea97a3b478b5d629f&oe=614D9448",
  "https://scontent-hkg4-1.xx.fbcdn.net/v/t1.6435-9/s640x640/237446804_3091585131166983_1116147550483070313_n.jpg?_nc_cat=105&ccb=1-5&_nc_sid=8bfeb9&_nc_ohc=5QCW7JFNQoAAX-Suuyv&_nc_ht=scontent-hkg4-1.xx&oh=ca4d078c57e9b95815d6facb38bef7db&oe=614C87E3",
];

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  final itemCount = 3;
  final foldOutList = <bool>[false, false, false];

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: Text('Example'),
          actions: [
            IconButton(
              onPressed: () {
                setState(() {
                  for (var i = 0; i < foldOutList.length; ++i) {
                    foldOutList[i] = false;
                  }
                });
              },
              icon: Icon(Icons.cleaning_services_sharp),
            ),
          ],
        ),
        backgroundColor: Colors.white,
        body: ListView.builder(
          itemBuilder: (context, index) {
            return Padding(
              padding: const EdgeInsets.only(left: 22.0, right: 22),
              child: FoldingCard(
                foldOut: foldOutList[index],
                curve: foldOutList[index] == true
                    ? Curves.easeInCubic
                    : Curves.easeOutCubic,
                duration: Duration(milliseconds: 1400),
                coverBackground: ElevatedButton(
                  onPressed: () {
                    setState(() {
                      foldOutList[index] = true;
                    });
                  },
                  child: Text(
                    'This is a sample coverBackground, click on it to fold in.',
                    textAlign: TextAlign.center,
                  ),
                ),
                expandedCard: index == 1
                    ? Stack(
                        children: [
                          Image.network(
                            _kImageUrls[3],
                            fit: BoxFit.fitWidth,
                            width: MediaQuery.of(context).size.width,
                            alignment: Alignment.topCenter,
                          ),
                          Center(
                            child: ElevatedButton(
                              onPressed: () {},
                              child: Text(
                                'This is a other sample for expandedCard.',
                              ),
                            ),
                          )
                        ],
                      )
                    : Image.network(
                        _kImageUrls[1],
                        fit: BoxFit.cover,
                        width: MediaQuery.of(context).size.width,
                        alignment: Alignment.topCenter,
                      ),
                cover: ElevatedButton(
                  style: ButtonStyle(
                    padding: MaterialStateProperty.all(EdgeInsets.zero),
                  ),
                  onPressed: () {
                    setState(() {
                      foldOutList[index] = false;
                    });
                  },
                  child: Image.network(
                    _kImageUrls[2],
                    fit: BoxFit.fitWidth,
                    width: MediaQuery.of(context).size.width,
                    alignment: Alignment.topCenter,
                  ),
                ),
                foldingHeight: 100,
                expandedHeight: 300,
              ),
            );
          },
          itemCount: itemCount,
        ),
      ),
    );
  }
}

Development environment

[✓] Flutter (Channel stable, 3.0.1, on macOS 12.3.1 21E258 darwin-x64, locale en-VN)
    • Flutter version 3.0.1 at ~/fvm/versions/stable
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision fb57da5f94 (5 days ago), 2022-05-19 15:50:29 -0700
    • Engine revision caaafc5604
    • Dart version 2.17.1
    • DevTools version 2.12.2

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at ~/Library/Android/sdk
    • Platform android-31, build-tools 30.0.3
    • ANDROID_HOME = ~/Library/Android/sdk
    • ANDROID_SDK_ROOT = ~/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.12+0-b1504.28-7817840)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 13.3.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • CocoaPods version 1.11.3

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2021.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.12+0-b1504.28-7817840)

[✓] VS Code (version 1.67.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.40.0