flip_box_bar

A 3D BottomNavigationBar inspired by Dribbble design by Dannniel https://dribbble.com/shots/4811135-Tab-Bar-Cube-Interaction.

Demo

Example Use

  // In Scaffold
  int selectedIndex = 0;
  
  bottomNavigationBar: FlipBoxBar(
          selectedIndex: index,
          items: [
            FlipBarItem(icon: Icon(Icons.map), text: Text("Map"), frontColor: Colors.blue, backColor: Colors.blueAccent),
            FlipBarItem(icon: Icon(Icons.add), text: Text("Add"), frontColor: Colors.cyan, backColor: Colors.cyanAccent),
            FlipBarItem(icon: Icon(Icons.chrome_reader_mode), text: Text("Read"), frontColor: Colors.orange, backColor: Colors.orangeAccent),
            FlipBarItem(icon: Icon(Icons.print), text: Text("Print"), frontColor: Colors.purple, backColor: Colors.purpleAccent),
            FlipBarItem(icon: Icon(Icons.print), text: Text("Print"), frontColor: Colors.pink, backColor: Colors.pinkAccent),
          ],
          onIndexChanged: (newIndex) {
            setState() {
                selectedIndex = newIndex;
            }
          },
        ),

Properties

List items;

The items to be displayed in the BottomNavBar.

Duration animationDuration;

The duration of the animation of the box flip.

ValueChanged onIndexChanged;

Callback for getting value of item selection.

int initialIndex;

The initial selected index of the BottomNavBar.

double navBarHeight;

The height of the BottomNavBar.

Note: Breaking change

Prior to 0.9.0, only initialIndex was provided as a parameter. 0.9.0 onwards, user needs to modify the selectedIndex property and rebuild to animate. The reason for this modification is that it allows programmatically changing the selected index whereas the earlier version did not.

A version of the code before 0.9.0 would look like this:

    // In Scaffold
  
  bottomNavigationBar: FlipBoxBar(
          initialIndex: 0,
          items: [
            FlipBarItem(icon: Icon(Icons.map), text: Text("Map"), frontColor: Colors.blue, backColor: Colors.blueAccent),
            FlipBarItem(icon: Icon(Icons.add), text: Text("Add"), frontColor: Colors.cyan, backColor: Colors.cyanAccent),
            FlipBarItem(icon: Icon(Icons.chrome_reader_mode), text: Text("Read"), frontColor: Colors.orange, backColor: Colors.orangeAccent),
            FlipBarItem(icon: Icon(Icons.print), text: Text("Print"), frontColor: Colors.purple, backColor: Colors.purpleAccent),
            FlipBarItem(icon: Icon(Icons.print), text: Text("Print"), frontColor: Colors.pink, backColor: Colors.pinkAccent),
          ],
          onIndexChanged: (newIndex) {
            print(newIndex);
          },
        ),

Libraries

flip_box_bar

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]