curved_labeled_navigation_bar

Stunning Animating Curved Shape Navigation Bar. Adjustable color, background color, animation curve, animation duration.


License
BSD-2-Clause

Documentation

curved_labeled_navigation_bar

pub package

A Flutter package for easy implementation of curved navigation bar. This package is a fork of the original curved_navigation_bar from https://github.com/rafalbednarczuk/curved_navigation_bar with label for CurvedNavigationBarItem.

Label No Label
Gif Gif

Add dependency

dependencies:
  curved_labeled_navigation_bar: ^2.0.4 #latest version

Easy to use

Scaffold(
  bottomNavigationBar: CurvedNavigationBar(
    backgroundColor: Colors.blueAccent,
    items: [
      CurvedNavigationBarItem(
        child: Icon(Icons.home_outlined),
        label: 'Home',
      ),
      CurvedNavigationBarItem(
        child: Icon(Icons.search),
        label: 'Search',
      ),
      CurvedNavigationBarItem(
        child: Icon(Icons.chat_bubble_outline),
        label: 'Chat',
      ),
      CurvedNavigationBarItem(
        child: Icon(Icons.newspaper),
        label: 'Feed',
      ),
      CurvedNavigationBarItem(
        child: Icon(Icons.perm_identity),
        label: 'Personal',
      ),
    ],
    onTap: (index) {
      // Handle button tap
    },
  ),
  body: Container(color: Colors.blueAccent),
)

Attributes

CurvedNavigationBar

Attribute Description
items List of CurvedNavigationBarItem
index Index of NavigationBar, can be used to change current index or to set initial index
color Color of NavigationBar, default Colors.white
buttonBackgroundColor Background color of floating button, default same as color attribute
backgroundColor Color of NavigationBar's background, default Colors.blueAccent
onTap Function handling taps on items
letIndexChange Function which takes page index as argument and returns bool. If function returns false then page is not changed on button tap. It returns true by default
animationCurve Curves interpolating button change animation, default Curves.easeOut
animationDuration Duration of button change animation, default Duration(milliseconds: 600)
height Height of NavigationBar
maxWidth Allows to set the width of the navigation bar lower than the entire screen width by default
iconPadding Padding of icon in floating button

CurvedNavigationBarItem

Attribute Description
child Icon of CurvedNavigationBarItem
label Text of CurvedNavigationBarItem
labelStyle TextStyle for label

Change page programmatically

 // State class
  int _page = 0;
  GlobalKey<CurvedNavigationBarState> _bottomNavigationKey = GlobalKey();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        bottomNavigationBar: CurvedNavigationBar(
          key: _bottomNavigationKey,
          items: [
            CurvedNavigationBarItem(
              child: Icon(Icons.home_outlined),
              label: 'Home',
            ),
            CurvedNavigationBarItem(
              child: Icon(Icons.search),
              label: 'Search',
            ),
            CurvedNavigationBarItem(
              child: Icon(Icons.chat_bubble_outline),
              label: 'Chat',
            ),
            CurvedNavigationBarItem(
              child: Icon(Icons.newspaper),
              label: 'Feed',
            ),
            CurvedNavigationBarItem(
              child: Icon(Icons.perm_identity),
              label: 'Personal',
            ),
          ],
          onTap: (index) {
            setState(() {
              _page = index;
            });
          },
        ),
        body: Container(
          color: Colors.blueAccent,
          child: Center(
            child: Column(
              children: <Widget>[
                Text(_page.toString(), textScaleFactor: 10.0),
                ElevatedButton(
                  child: Text('Go To Page of index 1'),
                  onPressed: () {
                    // Page change using state does the same as clicking index 1 navigation button
                    final CurvedNavigationBarState? navBarState =
                        _bottomNavigationKey.currentState;
                    navBarState?.setPage(1);
                  },
                )
              ],
            ),
          ),
        ),
    );
  }