Preview

Installation

Manually

Download the source directory.
Drag the source directory to your Xcode project.

Usage

Very easy to use, just like UITableViewController, you just need to implement the datasource and delegate (optional)

First: create the ZYScrollSegmentBar()

var viewControllers:[UIViewController] = []
override func viewDidLoad() {
  super.viewDidLoad()
  let scrollSegmentBar = ZYScrollSegmentBar(frame: CGRect(x: 0, y: 20, width: view.frame.width, height: view.frame.height - 20))
  view.addSubview(scrollSegmentBar)
  
  // add you viewControllers
  // viewControllers.append(viewController1)
  // viewControllers.append(viewController2)
  // ...

  scrollSegmentBar.dataSource = self
  scrollSegmentBar.delegate = self
  scrollSegmentBar.reloadView()
}

Second: implement ZYScrollSegmentBarDataSource and ZYScrollSegmentBarDelegate

extension ViewController:ZYScrollTabBarDataSource, ZYScrollTabBarDelegate {
  // return the number of items
  func numberOfItems(tabBar: ZYScrollTabBar) -> Int {
    return viewControllers.count
  }
  // return the viewContrller in order to construct the ZYScrollSegmentBar view
  func viewControllerForScrollTabBar(scrollTabBar: ZYScrollTabBar, atIndex: Int) -> UIViewController {
    return viewControllers[atIndex]
  }
  
  func tabBarDidScrollAtIndex(tabBar: ZYScrollTabBar, index: Int) {
    print("scroll to \(index)th view controller!")
  }
}

Appearance

public struct ZYScrollSegmentBarAppearance {
    var textColor: UIColor = UIColor.darkGrayColor()
    var selectedTextColor: UIColor = UIColor.redColor()
    var font: UIFont = UIFont.systemFontOfSize(12)
    var selectedFont: UIFont = UIFont.systemFontOfSize(14)
    var bottomLineColor: UIColor = UIColor.redColor()
    var bottomLineHeight: CGFloat = 2.0
    var tabBarHeight: CGFloat = 40.0
    var tabMargin: CGFloat = 20.0
}

  scrollTabBar.appearance.textColor = UIColor.darkGrayColor()

Requirements

Swift 2.0, iOS 8.0

License

ZYScrollSegmentBar is provided under the MIT license. See LICENSE file for details.