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Description:

flutter snake navigationbar

SnakeNavigationBar #

A new Flutter SnakeNavigationBar widget package.
BREAKING CHANGES #
To separate colors and gradient logic now you have SnakeNavigationBar.color and SnakeNavigationBar.gradient constructors.
Changes naming:
style => behaviour,
snakeColor => snakeViewColor (snakeViewGradient in gradient configuration),
onPositionChanged => onTap
Added selectedItemColor and unselectedItemColor (selectedItemGradient and unselectedItemGradient in gradient configuration)
Preview #

Usage #
To use this plugin, add flutter_snake_navigationbar as a dependency in your pubspec.yaml file.
Properties #
SnakeNavigationBar has a similar API to BottomNavigationBar and uses BottomNavigationBarItem to show items as well.
Scaffold(
bottomNavigationBar: SnakeNavigationBar.color(
behaviour: snakeBarStyle,
snakeShape: snakeShape,
shape: bottomBarShape,
padding: padding,

///configuration for SnakeNavigationBar.color
snakeViewColor: selectedColor,
selectedItemColor: snakeShape == SnakeShape.indicator ? selectedColor : null,
unselectedItemColor: Colors.blueGrey,

///configuration for SnakeNavigationBar.gradient
//snakeViewGradient: selectedGradient,
//selectedItemGradient: snakeShape == SnakeShape.indicator ? selectedGradient : null,
//unselectedItemGradient: unselectedGradient,

showUnselectedLabels: showUnselectedLabels,
showSelectedLabels: showSelectedLabels,

currentIndex: _selectedItemPosition,
onTap: (index) => setState(() => _selectedItemPosition = index),
items: [
BottomNavigationBarItem(icon: Icon(Icons.notifications), label: 'tickets'),
BottomNavigationBarItem(icon: Icon(CustomIcons.calendar), label: 'calendar'),
BottomNavigationBarItem(icon: Icon(CustomIcons.home), label: 'home'),
BottomNavigationBarItem(icon: Icon(CustomIcons.podcasts), label: 'microphone'),
BottomNavigationBarItem(icon: Icon(CustomIcons.search), label: 'search')
],
),
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final List<BottomNavigationBarItem> items;

/// If [SnakeBarBehaviour.floating] this color is
/// used as background color of shaped view.
/// If [SnakeBarBehaviour.pinned] this color just
/// a background color of whole [SnakeNavigationBar] view
final Gradient backgroundGradient;

/// This color represents a SnakeView and unselected
/// Icon and label color
final Gradient snakeViewGradient;

/// This color represents a selected Icon color
final Gradient selectedItemGradient;

/// This color represents a unselected Icon color
final Gradient unselectedItemGradient;

/// Whether the labels are shown for the selected [BottomNavigationBarItem].
final bool showSelectedLabels;

/// Whether the labels are shown for the selected [BottomNavigationBarItem].
final bool showUnselectedLabels;

/// The index into [items] for the current active [BottomNavigationBarItem].
final int currentIndex;

///You can specify custom elevation shadow color
final Color shadowColor;

/// Defines the [SnakeView] shape and behavior of a [SnakeNavigationBar].
///
/// See documentation for [SnakeShape] for information on the
/// meaning of different shapes.
///
/// Default is [SnakeShape.circle]
final SnakeShape snakeShape;

/// Defines the layout and behavior of a [SnakeNavigationBar].
///
/// See documentation for [SnakeBarBehaviour] for information on the
/// meaning of different styles.
///
/// Default is [SnakeBarBehaviour.pinned]
final SnakeBarBehaviour behaviour;

/// You can define custom [ShapeBorder] with padding and elevation to [SnakeNavigationBar]
final ShapeBorder shape;
final EdgeInsets padding;
final double elevation;

/// Called when one of the [items] is pressed.
final ValueChanged<int> onTap;
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!! IMPORTANT !! if you use [SnakeShape.circle] then [showSelectedLabels] parameter will be always [FALSE]