#import "SegmentedControlTestViewController.h"  

    @implementation SegmentedControlTestViewController  

    @synthesize segmentedControl;  

    // Implement viewDidLoad to do additional setup after loading the view, typically from a nib.  
    - (void)viewDidLoad {  

        NSArray *segmentedArray = [[NSArray alloc]initWithObjects:@"1",@"2",@"3",@"4",nil];  

        //初始化UISegmentedControl  
        UISegmentedControl *segmentedTemp = [[UISegmentedControl alloc]initWithItems:segmentedArray];  

        segmentedControl = segmentedTemp;  

        segmentedControl.frame = CGRectMake(60.0, 10.0, 200.0, 50.0);  

          

        [segmentedControl setTitle:@"two" forSegmentAtIndex:1];//设置指定索引的题目  
        [segmentedControl setImage:[UIImage imageNamed:@"lan.png"] forSegmentAtIndex:3];//设置指定索引的图片  
        [segmentedControl insertSegmentWithImage:[UIImage imageNamed:@"mei.png"] atIndex:2 animated:NO];//在指定索引插入一个选项并设置图片  
        [segmentedControl insertSegmentWithTitle:@"insert" atIndex:3 animated:NO];//在指定索引插入一个选项并设置题目  
        [segmentedControl removeSegmentAtIndex:0 animated:NO];//移除指定索引的选项  
        [segmentedControl setWidth:70.0 forSegmentAtIndex:2];//设置指定索引选项的宽度  
        [segmentedControl setContentOffset:CGSizeMake(10.0,10.0) forSegmentAtIndex:1];//设置选项中图片等的左上角的位置  

          

        //获取指定索引选项的图片imageForSegmentAtIndex：  
        UIImageView *imageForSegmentAtIndex = [[UIImageView alloc]initWithImage:[segmentedControl imageForSegmentAtIndex:1]];  

        imageForSegmentAtIndex.frame = CGRectMake(60.0, 100.0, 30.0, 30.0);  

          

        //获取指定索引选项的标题titleForSegmentAtIndex  
        UILabel *titleForSegmentAtIndex = [[UILabel alloc]initWithFrame:CGRectMake(100.0, 100.0, 30.0, 30.0)];  

        titleForSegmentAtIndex.text = [segmentedControl titleForSegmentAtIndex:0];  

          

        //获取总选项数segmentedControl.numberOfSegments  
        UILabel *numberOfSegments = [[UILabel alloc]initWithFrame:CGRectMake(140.0, 100.0, 30.0, 30.0)];  

        numberOfSegments.text = [NSString stringWithFormat:@"%d",segmentedControl.numberOfSegments];  

          

        //获取指定索引选项的宽度widthForSegmentAtIndex：  
        UILabel *widthForSegmentAtIndex = [[UILabel alloc]initWithFrame:CGRectMake(180.0, 100.0, 70.0, 30.0)];  

        widthForSegmentAtIndex.text = [NSString stringWithFormat:@"%f",[segmentedControl widthForSegmentAtIndex:2]];  

          

        segmentedControl.selectedSegmentIndex = 2;//设置默认选择项索引  
        segmentedControl.tintColor = [UIColor redColor];  

        segmentedControl.segmentedControlStyle = UISegmentedControlStylePlain;//设置样式  
        segmentedControl.momentary = YES;//设置在点击后是否恢复原样  
          

        [segmentedControl setEnabled:NO forSegmentAtIndex:4];//设置指定索引选项不可选  
        BOOL enableFlag = [segmentedControl isEnabledForSegmentAtIndex:4];//判断指定索引选项是否可选  
        NSLog(@"%d",enableFlag);  

//设置平铺的背景图



  //先设置平铺图片

    UIImage *buttonImgNormal = [UIImage imageNamed:@"whiteButton"];

    UIImage *strectchableImgNormal = [buttonImgNormal stretchableImageWithLeftCapWidth:12 topCapHeight:0];

    [_doSomethingButton setBackgroundImage:strectchableImgNormal forState:UIControlStateNormal];

    UIImage *buttonImgPress = [UIImage imageNamed:@"blueButton"];

    UIImage *strectchableImgPress=[buttonImgPress stretchableImageWithLeftCapWidth:12 topCapHeight:0];



//然后把平铺的图片放到segment的背景中

           segmentControl.frame = CGRectMake(60, 220, 200, 40);

    [segmentControl setBackgroundImage:buttonImgPress forState:UIControlStateSelected barMetrics:UIBarMetricsDefault];

    [segmentControl setBackgroundImage:buttonImgNormal forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];

    [segmentControl addTarget:self action:@selector(changeBtnType:) forControlEvents:UIControlEventValueChanged];

    [self.view addSubview:segmentControl];

    [segmentArray release];



        [self.view addSubview:widthForSegmentAtIndex];  

        [self.view addSubview:numberOfSegments];  

        [self.view addSubview:titleForSegmentAtIndex];  

        [self.view addSubview:imageForSegmentAtIndex];  

        [self.view addSubview:segmentedControl];  

          

        [widthForSegmentAtIndex release];  

        [numberOfSegments release];  

        [titleForSegmentAtIndex release];  

        [segmentedTemp release];  

        [imageForSegmentAtIndex release];  

          

        //移除所有选项  

        //[segmentedControl removeAllSegments];  
        [super viewDidLoad];  

    }  

      

    - (void)didReceiveMemoryWarning {  

        // Releases the view if it doesn't have a superview.  
        [super didReceiveMemoryWarning];  

          

        // Release any cached data, images, etc that aren't in use.  
    }  

    - (void)viewDidUnload {  

        // Release any retained subviews of the main view.  

        // e.g. self.myOutlet = nil;  
    }  

      

    - (void)dealloc {  

        [segmentedControl release];  

        [super dealloc];  

    }  

    @end

src://http://www.cnblogs.com/wengzilin/archive/2012/03/14/2395710.html