// First create some tab bar items:
// Icons should be a template image with the size 26 x 20 dp
var items = [MiniTabBarItem]()
items.append(MiniTabBarItem(title: "Tab Name", icon: <UIImage>))
//...

// Create a MiniTabBar instance and add it as a regular subview:
let tabBar = MiniTabBar(items: items)
tabBar.delegate = self
tabBar.frame = CGRect(x: 0, y: self.view.frame.height - 44, width: self.view.frame.width, height: 44)
self.view.addSubview(tabBar)

// Delegate protocol:
func tabSelected(_ index: Int) {
    print("Selected tab: ", index)
}

// Change the tint colour of an item (title & icon):
tabBar.tintColor = UIColor.red

// Change the font of the title label:
tabBar.font = UIFont.systemFont(ofSize: 10)

// Select an item programmatically: 
tabBar.selectItem(2, animated: false)

// Change the background & key line of the tab bar:
tabBar.backgroundColor = UIColor.black
tabBar.backgroundBlurEnabled = false
tabBar.keyLine.isHidden = true

let customButton = UIButton()
customButton.backgroundColor = UIColor.orange
customButton.frame.size = CGSize(width: 50, height: 50)
let customItem = MiniTabBarItem(customView: customButton, 
                                    offset: UIOffset(horizontal: 0, 
                                                       vertical: -10))
customItem.selectable = false
items.append(customItem)