创建，并监听控件选择值

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad() 
        //选项除了文字还可以是图片
        var items=["tab1","tab2",UIImage(named:"star")] as [AnyObject]
        var segmented=UISegmentedControl(items:items)
        segmented.center=self.view.center
        segmented.selectedSegmentIndex=1
         //默认选中第二项      
        segmented.addTarget(self, action: "segmentDidchange:",
        forControlEvents: UIControlEvents.ValueChanged)
          //添加值改变监听 
        self.view.addSubview(segmented)
    }
 
    func segmentDidchange(segmented:UISegmentedControl){
        //获得选项的索引
        println(segmented.selectedSegmentIndex)
        //获得选择的文字
        println(segmented.titleForSegmentAtIndex(segmented.selectedSegmentIndex))
    }
}

选择控件中选项的添加和删除

//添加文字选项
segmented.insertSegmentWithTitle("新增选项",atIndex:1,animated:true);
//添加图片选项
segmented.insertSegmentWithImage(UIImage(named:"icon")!,atIndex:1,animated: true)
//移除选项
segmented.removeSegmentAtIndex(1,animated:true);

修改选项颜色（包括图片选项）

segmented.tintColor=UIColor.redColor()

修改选项文字

segmented.setTitle("swfit",forSegmentAtIndex:1)

修改选项图片

segmented.setImage(UIImage(named:"icon"),forSegmentAtIndex:2)

修改选项内容偏移位置

segmented.setContentOffset(CGSizeMake(10,7),forSegmentAtIndex:1)