class ViewController: UIViewController {

  override func viewDidLoad() {
      super.viewDidLoad()
      let titles = ["日排行","周排行","月排行","总排行"]
      let segmentView = ELSegmentView(titles: titles)
      view.addSubview(segmentView)
      segmentView.snp.makeConstraints { (make) in
          make.left.top.right.equalToSuperview()
          make.height.equalTo(64)
      }
  }

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

protocol ELSegmentViewDelegate: class {
  func segmentView(_ segmentView: ELSegmentView, didSelectRowAt index: Int)
}

extension ViewController: ELSegmentViewDelegate {
  func segmentView(_ segmentView: ELSegmentView, didSelectRowAt index: Int) {
      print(index)
  }
}