使用的开源库是：LuseenBottomNavigation
本应用《任您记）APP项目中用法是依赖：compile ‘com.github.armcha:LuseenBottomNavigation:1.8.2‘

主要代码：

if (bottomNavigationView != null) {
bottomNavigationView.isWithText(false);
bottomNavigationView.isColoredBackground(true);
bottomNavigationView.setTextActiveSize(getResources().getDimension(R.dimen.dp_18));
bottomNavigationView.setTextInactiveSize(getResources().getDimension(R.dimen.dp_18));
bottomNavigationView.setItemActiveColorWithoutColoredBackground(ContextCompat.getColor(this, R.color.colorPrimary));
bottomNavigationView.setFont(Typeface.createFromAsset(getApplicationContext().getAssets(), "fonts/chinese_character.ttf"));
}

    BottomNavigationItem bottomNavigationItem = new BottomNavigationItem
            ("待办", color[0], image[0]);
    BottomNavigationItem bottomNavigationItem1 = new BottomNavigationItem
            ("日记", color[1], image[1]);
    BottomNavigationItem bottomNavigationItem2 = new BottomNavigationItem
            ("账单", color[2], image[2]);
    BottomNavigationItem bottomNavigationItem3 = new BottomNavigationItem
            ("纪念日", color[3], image[3]);

    bottomNavigationView.addTab(bottomNavigationItem);
    bottomNavigationView.addTab(bottomNavigationItem1);
    bottomNavigationView.addTab(bottomNavigationItem2);
    bottomNavigationView.addTab(bottomNavigationItem3);

    bottomNavigationView.setOnBottomNavigationItemClickListener(this);

最后上一下已做好的优雅界面图：

记录一下本应用《任您记）APP项目中点击底部导航栏四个按钮，则界面颜色跟着变化及图标字放大效果