duheng1992 / flip_box_bar

A 3D Bottom Navigation Bar in Flutter

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<FlipBarItem> items;

The items to be displayed in the BottomNavBar.

Duration animationDuration;

The duration of the animation of the box flip.

ValueChanged<int> 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);
              },
            ),