Swift - 分段选择控件（UISegmentedControl）的用法

1，选择控件的创建，并监听控件选择值

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class ViewController: UIViewController {     override func viewDidLoad() {         super.viewDidLoad()           //选项除了文字还可以是图片         var items=["选项一","选项二",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))     } }

2，选择控件中选项的添加和删除

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//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);

3，修改选项颜色（包括图片选项）

1	segmented.tintColor=UIColor.redColor()

4，修改选项文字

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

5，修改选项图片

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

6，修改选项内容偏移位置

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