collapsing_drawer 0.0.2

collapsing_drawer #

A drawer than can be collapsed.


Basic usage #

Add collapsing_drawer in your pubspec.yaml.

Add the import:

import 'package:collapsing_drawer/collapsing_drawer.dart';

Then you just add a CollapsingContainer to your Scaffold's body like this:

class TestesCollapsingContainer extends StatefulWidget {
  TestesCollapsingContainerState createState() => TestesCollapsingContainerState();

class TestesCollapsingContainerState extends State<TestesCollapsingContainer> with SingleTickerProviderStateMixin {
  final _drawer = GlobalKey<CollapsingContainerState>();
  //This controller optional. Use only if you want to share the animation with other widgets like the "JustATile" (below)
  AnimationController animationController;
  void initState() {
    animationController = AnimationController(vsync: this, duration: millis(100));

  Widget build(BuildContext context) {
    return Scaffold(
        body: Stack(
      children: <Widget>[
          key: _drawer,
          animationController: animationController,
          body: SafeArea(
            child: ListView.builder(
              itemCount: 100,
              itemBuilder: (context, index) => ListTile(title: Text("A text on the side")),
          drawer: SafeArea(
            child: Material(
              elevation: 4,
              child: Column(
                children: <Widget>[
                    child: ListView.builder(
                      itemBuilder: (BuildContext context, int index) => JustATile(animationController, index),
                      itemCount: 30,
                    height: 1,
                    icon: AnimatedIcon(
                      icon: AnimatedIcons.menu_arrow,
                      progress: animationController,
                    onPressed: () {

  void _openCloseDrawer() {


A sample of a tile you can use on it:

class JustATile extends StatefulWidget {
  final AnimationController animationController;
  final int index;

  JustATile(this.animationController, this.index);

  _JustATileState createState() => _JustATileState();

class _JustATileState extends State<JustATile> {
  Animation<double> _animation;

  void initState() {
    _animation = Tween<double>(begin: 1.0, end: 0).animate(widget.animationController);

  Widget build(BuildContext context) {
    return AnimatedBuilder(
      builder: (BuildContext context, Widget child) {
        return ListTile(
          onTap: () {
            print("You tapped");
          leading: CircleAvatar(
          title: Opacity(
            opacity: 1 - _animation.value,
            child: Text(
              "Title at ${widget.index}",
              maxLines: 1,
              overflow: TextOverflow.clip,
      animation: _animation,

[0.0.2] - 15 feb 2019.

  • First release.

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  collapsing_drawer: ^0.0.2

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:collapsing_drawer/collapsing_drawer.dart';
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Learn more about scoring.

We analyzed this package on Feb 13, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.7.1
  • pana: 0.13.5
  • Flutter: 1.12.13+hotfix.7

Health suggestions

Format lib/collapsing_drawer.dart.

Run flutter format to format lib/collapsing_drawer.dart.

Maintenance suggestions

The package description is too short. (-20 points)

Add more detail to the description field of pubspec.yaml. Use 60 to 180 characters to describe the package, what it does, and its target use case.

Maintain an example. (-10 points)

Create a short demo in the example/ directory to show how to use this package.

Common filename patterns include main.dart, example.dart, and collapsing_drawer.dart. Packages with multiple examples should provide example/

For more information see the pub package layout conventions.

Package is pre-v0.1 release. (-10 points)

While nothing is inherently wrong with versions of 0.0.*, it might mean that the author is still experimenting with the general direction of the API.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0-dev.68.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.11 1.14.12
meta 1.1.8
sky_engine 0.0.99
typed_data 1.1.6
vector_math 2.0.8
Dev dependencies