//1. 设置子控制器,类似
func setChildVcs() -> [UIViewController] {
    let vc1 = storyboard!.instantiateViewControllerWithIdentifier("test")
    vc1.title = "国内头条"
    let vc2 = UIViewController()
    vc2.view.backgroundColor = UIColor.greenColor()
    vc2.title = "国际要闻"
    
    let vc3 = UIViewController()
    vc3.view.backgroundColor = UIColor.redColor()
    vc3.title = "趣事"
    
    let vc4 = UIViewController()
    vc4.view.backgroundColor = UIColor.yellowColor()
    vc4.title = "囧图"
    
    let vc5 = UIViewController()
    vc5.view.backgroundColor = UIColor.lightGrayColor()
    vc5.title = "明星八卦"
    
    let vc6 = UIViewController()
    vc6.view.backgroundColor = UIColor.brownColor()
    vc6.title = "爱车"
    
    let vc7 = UIViewController()
    vc7.view.backgroundColor = UIColor.orangeColor()
    vc7.title = "国防要事"
    
    let vc8 = UIViewController()
    vc8.view.backgroundColor = UIColor.blueColor()
    vc8.title = "科技频道"
    
    let vc9 = UIViewController()
    vc9.view.backgroundColor = UIColor.brownColor()
    vc9.title = "手机专页"
    
    let vc10 = UIViewController()
    vc10.view.backgroundColor = UIColor.orangeColor()
    vc10.title = "风景图"
    
    let vc11 = UIViewController()
    vc11.view.backgroundColor = UIColor.blueColor()
    vc11.title = "段子"
    
    return [vc1, vc2, vc3,vc4, vc5, vc6, vc7, vc8, vc9, vc10, vc11]
}

    
    
    // 2.这个是必要的设置
    automaticallyAdjustsScrollViewInsets = false
    
    //3. 自定义效果组合
    var style = SegmentStyle()
    // 缩放文字
    style.scaleTitle = true
    // 颜色渐变
    style.gradualChangeTitleColor = true
    // segment可以滚动
    style.scrollTitle = true
    
    let childVcs = setChildVcs()
    // 4. 注意: 标题个数和子控制器的个数要相同
    let titles = childVcs.map { $0.title! }

	// 5. 这里的childVcs 需要传入一个包含childVcs的数组, parentViewController 传入self
    let scrollPageView = ScrollPageView(frame: CGRect(x: 0, y: 64, width: view.bounds.size.width, height: view.bounds.size.height - 64), segmentStyle: style, titles: titles, childVcs: childVcs, parentViewController: self)
    // 6.
    view.addSubview(scroll) 

		// 1. 添加子控制器
		    // 设置childVcs
	 func setChildVcs()  -> [UIViewController]{
    	let vc1 = storyboard!.instantiateViewControllerWithIdentifier("test")
    	vc1.view.backgroundColor = UIColor.whiteColor()
    
    	let vc2 = UIViewController()
    	vc2.view.backgroundColor = UIColor.greenColor()
    
   		 return [vc1, vc2]
	 }
    
    //2. 这个是必要的设置
    automaticallyAdjustsScrollViewInsets = false
    
    // 3. 自定义效果组合
    var style = SegmentStyle()
    
    // 标题不滚动, 则每个label会平分宽度
    style.scrollTitle = false
    // 颜色渐变
    style.gradualChangeTitleColor = true
    // 遮盖
    style.showCover = true
    // 遮盖颜色
    style.coverBackgroundColor = UIColor.whiteColor()
    
    // title正常状态颜色 使用RGB空间值
    style.normalTitleColor = UIColor(red: 255.0/255.0, green: 255.0/255.0, blue: 255.0/255.0, alpha: 1.0)
    // title选中状态颜色 使用RGB空间值
    style.selectedTitleColor = UIColor(red: 235.0/255.0, green: 0.0/255.0, blue: 0.0/255.0, alpha: 1.0)
	
	// 4. 标题个数和子控制器的个数要相同
    let titles = ["国内头条", "国际要闻"]

	// 5. 初始化segmentView
    topView = ScrollSegmentView(frame: CGRect(x: 0, y: 0, width: 150, height: 28), segmentStyle: style, titles: titles)
    topView.backgroundColor = UIColor.redColor()
    topView.layer.cornerRadius = 14.0
    // 可以直接设置背景色
    //        topView.backgroundImage = UIImage(named: "test")
	
	// 6. 初始化 contentView 
    contentView = ContentView(frame: view.bounds, childVcs: setChildVcs(), parentViewController: self)
    // 7. 设置代理 必要的设置
    contentView.delegate = self // 必须实现代理方法
    
    // 8. 处理点击title时切换contentView的内容, 建议您可以直接使用和下面一样的代码
    topView.titleBtnOnClick = {[unowned self] (label: UILabel, index: Int) in
        self.contentView.setContentOffSet(CGPoint(x: self.contentView.bounds.size.width * CGFloat(index), y: 0), animated: false)
        
    }
    // 9. 添加segmentVIew 和ContentView
    navigationItem.titleView = topView
    view.addSubview(contentView)
    
    // 10. 实现代理, 只需要提供当前的segmentVIew即可
    
    extension Vc6Controller: ContentViewDelegate {
		var segmentView: ScrollSegmentView {
   		 return topView
	 	}
	}

    let newChildVcs = currentChildVcs
    let newTitles = currentChildVcs.map { $0.title! }
    // 调用public方法刷新视图
    scrollPageView.reloadChildVcsWithNewTitles(newTitles, andNewChildVcs: newChildVcs)