Animations

.holeBall1	.holeBall2	.holeBall3

What’s New?

The API has been changed to resemble UITabBarController

• Colors have been renamed to conform to colors specified by UITabBar
• Colors can be set collectively as before (function parameter names have been changed to reflect the changed color names) or individually
• Colors can now be changed at any point in time
• The view controllers at any time
• The animation type can be changed at any time to switch between available animations by setting the animationType property!
• animationDuration can no longer be changed

Bug fixes

• A bug that caused holeBall3 to behave weirdly in larger screen sizes has been squashed
• Glitchy landscape mode behaviour has been fixed

A whole lot of performance optimizations have been added so that our library does not slow down your app. Hurray!

Requirements

• Swift 5+
• iOS 11.0+
• Swift tools version 5.0+ (For Swift Package Manager)

Integration

CocoaPods

SETabView is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'SETabView'

In case the latest version (2.0.0) is not the one being installed, update the pod.

pod update 'SETabView'

Swift Package Manager

The Swift Package Manager is a tool for automating the distribution of Swift code and is integrated into the swift compiler.

Once you have your Swift package set up, adding SETabView as a dependency is as easy as adding it to the dependencies value of your Package.swift.

dependencies: [
.package(url: "https://github.com/eshwavin/SETabView.git", .upToNextMajor(from: "2.0.0"))
]

Directly include source files

Download and add the files in the Source folder directly into your Xcode Project. In this case you should skip

import SETabView

in the usage instructions.

Usage and Customization

Import SETabView into the parent view controller and any child view controllers

import SETabView

Inherit from the SETabViewController class in your tab view controller

class MyCustomTabViewController: SETabViewController {

   override func viewDidLoad() {
    super.viewDidLoad()

  }
}

Setting the view controllers and colors

Set the view controllers using setViewControllers(_:) method or by directly setting the viewControllers property

Customise the look by calling setTabColors(backgroundColor:ballColor:tintColor:unselectedItemTintColor:barTintColor:) method or simply setting the respective colors

class ViewController: SEViewController {
    
    override func viewDidLoad() {
      super.viewDidLoad()
      
      // set tab bar look collectively
      setTabColors(backgroundColor: UIColor.white, ballColor: UIColor.white, tintColor: UIColor.black, unselectedItemTintColor: UIColor.red, barTintColor: .clear)
      
      // set the view controllers
      setViewControllers(getViewControllers(), initialSelectedTabIndex: 0, animationType: .holeBall3)

    }

    private func getViewControllers() -> [UIViewController] {
        let storyboard = UIStoryboard(name: "Main", bundle: nil)
        
        return [
            storyboard.instantiateViewController(withIdentifier: "firstVC"),
            storyboard.instantiateViewController(withIdentifier: "secondVC"),
            storyboard.instantiateViewController(withIdentifier: "thirdVC"),
            storyboard.instantiateViewController(withIdentifier: "fourthVC"),
            storyboard.instantiateViewController(withIdentifier: "fifthVC")
        ]
    }   
}

Providing the image for the tab bar

The child view controllers can conform to the SETabItemProvider protocol. Using seTabImage return a UITabBarItem for the view controller.

Alternatively you can set the tabBarItem property for the view controllers as you would do when using UITabBarController

class FirstViewController: UIViewController, SETabItemProvider {

    var seTabBarItem: UITabBarItem? {
        return UITabBarItem(title: "", image: UIImage(named: "first"), tag: 0)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
    }
}

Setting the selected index programmatically

selectedTabIndex = 3

Restrictions

• Max 5 Tabs

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Planned Improvements

• More UITabBarController behaviours
• Increasing support for number of tabs by introducing a More tab
• Badges
• Performance improvements

Author

Srivinayak Chaitanya Eshwa, eshwavin@gmail.com

License

SETabView is available under the MIT license. See the LICENSE file for more info. SETabView uses the complete OrderedCollections code from swift-collections

Acknowledgement

Animation Inspiration

Icons