TTTabBar

TabBar with small icons and buttons like Facebook.

TTTabBar allows you to create a Tab Bar with:

Differents sizes for every single tab
Set each element of the tab as tab or button
Update the tabBar size, color, elments at any time
Load a tab programatically
Load a view that is not in the tabs

Configurations:

Tab Background
Image for every tab
Image for the selected tab
Bakcground for every tab button
Offset Bottom. Get an element with an offset from the bottom
Offset Y. Get an element with an offset from the top of the tab bar
Custom farme sizes of each element

No supported:

Storyboards
Only support up to 5 items

How it works:

Subclass a UIViewController with TTTabBar, it can be in storyboard (TTTabBar is a subclass of UIViewController)
Create the Tab Bar Items, with TTTabBarItem You can init this with a viewController or with images I recommend that if the item of the tab is a tab initialize with a ViewController, if the element is a button initialize with a image Then you need to set the image and selected image

//Tab. VC -> UIViewController or subclass
let item = TTTabBarItem(viewController: vc)
item.image = UIImage(named: "image")
item.selectedImage = UIImage(named: "image_selected")

//Button
let item3 = TTTabBarItem(image: UIImage(named: "image"), selected: UIImage(named: image_selected"))
item3.isButton = true

//Configurations
item3.offsetBottom = 5
item3.offsetY = 5m
item3.backgroundColor = UIColor.blackColor()
item3.frame = CGRectMake(0, 0, 55, 55)

Configure TabBar

self.tabBackgroundColor = UIColor.lightGrayColor()

Set the elements to the tab bar. Now it supports up to 5

self.tabBarItems = [item, item2, item3, item4, item5]

Finally call updateTabBarView, every single time you make a change to the tabBar

self.updateTabBarView()

Because you subclass TTTabBar, you can override the next functions

//Default true
override func ttTabBar(tabBar: TTTabBar, shouldChangeTab tabBarItem: TTTabBarItem) -> Bool 

override func ttTabBar(tabBar: TTTabBar, tabWillDisappear tabBarItem: TTTabBarItem) 

override func ttTabBar(tabBar: TTTabBar, tabDidDisappear tabBarItem: TTTabBarItem) 

override func ttTabBar(tabBar: TTTabBar, tabWillAppear tabBarItem: TTTabBarItem)

override func ttTabBar(tabBar: TTTabBar, tabDidAppear tabBarItem: TTTabBarItem)

//If the item has isButton = true, this method will be called
override func ttTabBar(tabBar: TTTabBar, buttonHasBeenClicked tabBarItem: TTTabBarItem)

Load a tab programatically

//tabBarItem == nil. all the tabs will be deselected and the actual view will be deleted
func loadViewControllerFrom(tabBarItem: TTTabBarItem?)

Load a view that is not on the Tab Bar Items

func loadViewController(vc: UIViewController)

lluisgerard/TTTabBar

TTTabBar