Animated Notch Bottom Bar

A Flutter package for animating the position of selected item in bottomNavigationBar with notch like design. Inspired by react-native-tabbar-interaction plugin.

Features :

• Supports any widget as as a bottom bar children.
• Animates the notch toward selected item.
• Create an optimized bottom navigation bar with beautiful animation.
• Supports blur effect like iOS Tab View.

Getting Started

Add the dependency in pubspec.yaml:

dependencies:
  ...
  animated_notch_bottom_bar: ^0.0.1

Basic Usage

Place AnimatedNotchBottomBar in the bottomNavigationBar parameter of a Scaffold widget and provide PageController to AnimatedNotchBottomBar.

bottomNavigationBar:  AnimatedNotchBottomBar(
 pageController: _pageController,
  ...
)

Use any Widget as bottom bar item

You can also set any animated widget.

bottomNavigationBar:  AnimatedNotchBottomBar(
  pageController: _pageController,
  bottomBarItems: [
    const BottomBarItems(
        inActiveItem: Icon(
           Icons.home_filled,
            color: Colors.blueGrey,
        ),
        activeItem: Icon(
          Icons.home_filled,
          color: Colors.blueAccent,
        ),
        itemLabel: 'Page 1',
  ),
    const BottomBarItems(
        inActiveItem: Icon(
            Icons.star,
            color: Colors.blueGrey,
          ),
        activeItem: Icon(
            Icons.star,
            color: Colors.blueAccent,
        ),
        itemLabel: 'Page 2',
  ),

     ///svg item
    BottomBarItems(
        inActiveItem: SvgPicture.asset(
          'assets/search_icon.svg',
           color: Colors.blueGrey,
       ),
       activeItem: SvgPicture.asset(
          'assets/search_icon.svg',
           color: Colors.black,
       ),
       itemLabel: 'Page 3',
    ),
     ...
)

Customized Blur Effect (iOS Tab View)

bottomNavigationBar:  AnimatedNotchBottomBar(
    ...
    showBlurBottomBar: true,
    blurOpacity: 0.2,
    blurFilterX: 5.0,
    blurFilterY: 10.0,
    ...
)

Show/hide item label and style

bottomNavigationBar:  AnimatedNotchBottomBar(
     ...
     showLabel: true,
     itemLabelStyle: TextStyle(
                      color: Colors.black,
                      fontSize: 16.0
                    ),
     ...
)

AnimatedNotchBottomBar

• pageController – the page controller which allows you to control the page animation duration and curve.
• bottomBarItems – navigation items, required more than one item and less than six.
• onTap – required to listen when an item is tapped it provides the selected item’s index.
• color – the bottom bar’s background color.
• showLabel: To show or hide the label under bottom bar item.
• itemLabelStyle – the bottom bar’s item text style.
• showShadow – if false the bottom bar’s elevation will be removed.
• showBlurBottomBar – if true the bottom bar will look blur.
• blurOpacity – to set opacity of blur effect.
• blurFilterX – Creates an image filter that applies a Gaussian blur at x axis.
• blurFilterY – Creates an image filter that applies a Gaussian blur at y axis.

BottomBarItems

• title – the bottom bar item label
• activeItem – the selected item.
• inActiveItem – the inactive item.

Guideline for contributors

Contribution towards our repository is always welcome, we request contributors to create a pull request to the develop branch only.

Download Tabbar component source code on GitHub

Tabbar component for Flutter
https://github.com/Mindinventory/animated_notch_bottom_bar
32 forks.
114 stars.
1 open issues.

Recent commits:

• Merge pull request #34 from Mindinventory/revert-32-mainRevert "control item size", GitHub
• Revert "control item size", GitHub
• Merge pull request #32 from AQuadic/maincontrol item size, GitHub
• revert Update constants.dart, GitHub
• Update notch_bottom_bar.dart itemSize, GitHub