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A collapsible sidebar for Flutter apps implementing the Material Design.

collapsible_sidebar #


A collapsible sidebar for Flutter apps implementing the Material Design.

responsive-ui

🌟 Version 2.0.7 ✨ #


Features #

  • Material Design
  • Pre-built customizable tile widgets (CollapsibleItems)
  • Smooth Animation
  • Supports both LTR & RTL languages
  • Supports MULTI-LEVEL Menu
  • Alert Badges on CollapsibleItems

Supported platforms #

  • Flutter Android
  • Flutter iOS
  • Flutter web
  • Flutter desktop

Contributors #

A big thank you to all the contributors without whom this project would be impossible to maintain and enhance. 👏👏👏 #

Live preview #

https://drunkonbytes.github.io/flutter_collapsible_sidebar

Note: this page is built with flutter-web. For a better user experience, please use a mobile device to open this link.

Installation #

Add collapsible_sidebar: ^2.0.7 to your pubspec.yaml dependencies. And import it:

import 'package:collapsible_sidebar/collapsible_sidebar.dart';

How to use #

  1. Create a list of CollapsibleItems named _items (or whatever fancy name you like)

For a collapsible item with sub-items to be the default selected item MARK ALL OF ITS SUB-ITEMS WITH THE isSelected: true property. #

List<CollapsibleItem> get _items {
    return [
      CollapsibleItem(
          text: 'Shop',
          iconImage: AssetImage("assets/shop_icon.png"), //`iconImage` has priority over `icon` property
          icon: Icons.ac_unit,
          onPressed: () => setState(() => _headline = 'Shop'),
          onHold: () => ScaffoldMessenger.of(context).showSnackBar(
              SnackBar(content: const Text("Shop"))
          ),
          isSelected: true,
          subItems: [
            CollapsibleItem(
              text: 'Cart',
              icon: Icons.shopping_cart,
              onPressed: () => setState(() => _headline = 'Cart'),
              onHold: () => ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(content: const Text("Cart"))
              ),
              isSelected: true,
            )
          ]
      ),
      CollapsibleItem(
        text: 'Dashboard',
        badgeCount: 7,
        icon: Icons.assessment,
        onPressed: () => setState(() => _headline = 'DashBoard'),
        onHold: () => ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: const Text("DashBoard"))
        ),
      ),
      CollapsibleItem(
        text: 'Ice-Cream',
        icon: Icons.icecream,
        onPressed: () => setState(() => _headline = 'Ice-Cream'),
        onHold: () => ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: const Text("Ice-Cream"))
        ),
      ),
      CollapsibleItem(
        text: 'Search',
        icon: Icons.search,
        onPressed: () => setState(() => _headline = 'Search'),
        onHold: () => ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: const Text("Search"))
        ),
      ),
    ];
  }
  1. Define the body of the app (the widget where the main working of the app will be) and name it say _body.
Widget _body(Size size, BuildContext context) {
    return Container(
      height: double.infinity,
      width: double.infinity,
      color: Colors.blueGrey[50],
      child: .........,
    );
  }
  1. Finally completely define the CollapsibleSidebar widget by adding the list of CollapsibleItems named _items, the body of the app named _body and the customizable parameters as needed:
CollapsibleSidebar(
  items: _items,
  avatarImg: _avatarImg,
  title: 'John Smith',
  body: _body(size, context),
)

Also you can use the isCollapsed condition depending how you want the state of the sidebar to change (collapsed/expanded) for example [size.width]

CollapsibleSidebar(
  isCollapsed: MediaQuery.of(context).size.width <= 800,
  items: _items,
  avatarImg: _avatarImg,
  title: 'John Smith',
  body: _body(size, context),
)

Parameters (customizable attributes) #

Name Data Type Default Value Description
isCollapsed bool true can set condition to control state of sidebar (collapsed/expanded) on some property change
collapseOnBodyTap bool true flag to enable/disable tapping on the body of the app (area other than the sidebar) to collapse the sidebar
items List<CollapsibleItems> --- List of CollapsibleItems
showTitle bool true can set to false to hide title and avatar Image
title String --- Title of the Collapsible Sidebar
titleBack bool false set to 'true' to use a back icon instead of avatar picture
titleBackIcon Icons Icons.arrow_back the back icon is 'arrow_back' by default (customizable)
onTitleTap Function --- custom callback function called when title avatar or back icon is pressed
onHoverPointer SystemMouseCursors SystemMouseCursors.click the default hover mouse pointer is set to 'click' type by default (customizable)
textStyle TextStyle --- custom style for sidebar title
titleStyle TextStyle --- custom style for collapsible items text
toggleTitleStyle TextStyle --- custom style for toggle button title
avatarImg Image --- Image to be displayed
body Widget --- The main body of the app (the underlying main widget other than the sidebar)
height double double.infinity height of the Sidebar
minWidth double 80 Width of Sidebar when Collapsed
maxWidth double 270 Width of Sidebar when Expanded
borderRadius double 15 Radius of the borders
iconSize double 40 Size of the icons
customContentPaddingLeft double -1 Padding to the left of CollapsibleItems (keep value less than 0 for default padding)
toggleTitle String 'Collapse' title text of Toggle Button
toggleButtonIcon Icons Icons.chevron_right Icon of the Toggle button
backgroundColor Color Color(0xff2B3138) The background color
avatarBackgroundColor Color Color(0xff6A7886) The avatar background color
selectedIconBox Color Color(0xff2F4047) Color of Icon Box when selected
selectedIconColor Color Color(0xff4AC6EA) Color of Icon when selected
selectedTextColor Color Color(0xffF3F7F7) Color of text when selected
unselectedIconColor Color Color(0xff6A7886) Color of Icon when not selected
unselectedTextColor Color Color(0xffC0C7D0) Color of text when not selected
badgeBackgroundColor Color Color(0xffFF6767) Background color of badges on Collapsible Items
badgeTextColor Color Color(0xffF3F7F7) Badge Text color of badges on Collapsible Items
duration Duration Duration(milliseconds: 500) Animation duration for collapsed->expanded & vice-versa
curve Curves Curves.fastLinearToSlowEaseIn Animation curve for collapsed->expanded & vice-versa
screenPadding double 4 Padding to the screen
topPadding double 0 space between image avatar and icons
bottomPadding double 0 space between icons and toggle button
itemPadding double 10 space between collapsible items
customItemOffsetX double -1 X axis offset for collapsible items (keep value less than 0 for default offset)
fitItemsToBottom bool true fit all icons to the end of the space between image avatar and toggle button
showToggleButton bool true flag to enable/disable showing the toggle button
sidebarBoxShadow List<BoxShadow> [BoxShadow(color: Colors.blue, blurRadius: 10, spreadRadius: 0.01, offset: Offset(3, 3),),] Just like the "BoxDecoration" parameter of a "Container"

License #


Apache 2.0

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Publisher

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A collapsible sidebar for Flutter apps implementing the Material Design.

Repository (GitHub)
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Documentation

API reference

License

Apache-2.0 (license)

Dependencies

flutter

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