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A custom navigation bar with smooth & dynamic ink blob transition effect.

Inkblob_navigation_bar #

A custom navigation bar with smooth & dynamic ink blob transition effect.

Overview #

This packages was inspired by this post from Dribbble

Implemented:

Dynamic Movement #

Customizable Curve #

Custom Colors #

Optional Titles #

Works with any widgets #

How to install #

Simply add the package to your dependencies! No other steps required :)

Documentation #

To use the InkblobNavigationBar you can simply use it in the bottomNavigationBar field of your material scaffold:

Scaffold(
  ...
  bottomNavigationBar: InkblobNavigationBar(
    ...
  )
)

You can customize these attributes in the navigation bar.
#

Attributes Type Description Default
showElevation bool Enable subtle shadow effect true
items List<InkblobBarItem> Item data for NavigationBar required
onItemSelected Function(int) Callback function when item tapped null
selectedIndex int Selected item index of navigation bar. required
previousIndex int Previously selected item index of navigation bar. selectedIndex
iconSize double Size of icons. 24.0
backgroundColor Color Background color of [CustomNavigationBar] Theme.bottomAppBarColor
containerHeight double Height of the NavigationBar 60
itemWidth double Total width of each item 2*containerHeight
curve Curve Animation curve of scale effect Curves.easInOutExpo
animationDuration Duration Duration of the total animation Duration(milliseconds: 270)

Attention: Both the selectedIndex and previousIndex are required for the animation to perform, an example of how to implement this is shown in the provided example app.

To customize the items in the navigation bar, just supply a list of InkblobBarItem like this.

InkblobNavigationBar(
  ...
  items: [
    // Simple Icon with a Title & Color
    InkblobBarItem(
      title: const Text('User'),
      filledIcon: const Icon(SpiriIcons.fi_sr_user),
      emptyIcon: const Icon(SpiriIcons.fi_rr_user),
      color: Colors.blue,
    ),
    // Custom Containers
    InkblobBarItem(
      filledIcon: Container(
        decoration: BoxDecoration(
          color: Colors.black,
          borderRadius: BorderRadius.circular(12),
        ),
      ),
      emptyIcon: Container(
        decoration: BoxDecoration(
          borderRadius: BorderRadius.circular(12),
          border: Border.all(color: Colors.black, width: 2),
        ),
      ),
    ),
    // Even Text Widgets
    InkblobBarItem(
      filledIcon: const Text('❤️', style: TextStyle(fontSize: 20)),
      emptyIcon: const Text('🖤', style: TextStyle(fontSize: 20)),
      color: Colors.red,
    ),
  ],
)

Example #

Check the example app for a full implementation example.

Contribute #

Issues and pull requests are always welcome!
If you found this project helpful, consider buying me a cup of ☕

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Publisher

verified publisherbyme.dev

A custom navigation bar with smooth & dynamic ink blob transition effect.

Repository (GitHub)
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License

unknown (LICENSE)

Dependencies

flutter

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