compile 'com.vincent.bottomnavigationbar:bottomnavigationbar:latestVersion' 

BottomNavigationBar bnb = (BottomNavigationBar) findViewById(R.id.bnb_default);

Tint Mode: 
BottomItem item = new BottomItem();
item.setText("Bag");
item.setIconResID(getResources().getIdentifier("ic_tint_bag", "drawable", mPackageName));
bnb.addItem(item);

Drawable Mode:
BottomItem item = new BottomItem();
item.setMode(BottomItem.DRAWABLE_MODE);
item.setText("Camera");
item.setActiveIconResID(getResources().getIdentifier("ic_drawable_camera_fill", "drawable",
        getApplicationInfo().packageName));
item.setInactiveIconResID(getResources().getIdentifier("ic_drawable_camera", "drawable",
        getApplicationInfo().packageName));
item.setActiveTextColor(Color.parseColor("#E64B4E"));
bnb.addItem(item);

bnb.addOnSelectedListener(new BottomNavigationBar.OnSelectedListener() {
    @Override
    public void OnSelected(int oldPosition, int newPosition) {
        //ToDo: Do anything you want, transforming fragment etc.
    }
});
bnb.setSelectedPosition(2); //Set default item
bnb.initialize();

Copyright 2016 Vincent Woo

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.