原文  http://blog.csdn.net/hmt20130412/article/details/38390493

               @UISegmentedControl类似于UIButton,它可以提供多个选择操作,响应事件,但具有很大的局限性,我们更多的是使用自定义的,不过在这里还是介绍下它的基本用法.

NSArray *segmentedArray = [[NSArrayalloc]initWithObjects:@"",@"",@"",@"",nil];

   //初始化UISegmentedControl

   UISegmentedControl *segmentedControl = [[UISegmentedControlalloc]initWithItems:segmentedArray];

   segmentedControl.frame = CGRectMake(20.0,……)

   // 设置默认选择项索引

   segmentedControl.selectedSegmentIndex = ;

   segmentedControl.tintColor = [UIColor redColor];

   // 有基本四种样式

   segmentedControl.segmentedControlStyle = UISegmentedControlStylePlain;

   segmentedControl.segmentedControlStyle = UISegmentedControlStyleBordered;

   segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;

   segmentedControl.segmentedControlStyle = UISegmentedControlStyleBezeled;

   // 设置在点击后是否恢复原样

  segmentedControl.momentary = YES;

  [segmentedControl setTitle:@"two" forSegmentAtIndex:];//设置指定索引的题目

  [segmentedControl setImage:[UIImage imageNamed:@"btn_jyy.png"] forSegmentAtIndex:];//设置指定索引的图片

   // 在指定索引插入一个选项并设置图片

  [segmentedControl insertSegmentWithImage:[UIImage imageNamed:@"mei.png"] atIndex: animated:NO];

   // 在指定索引插入一个选项并设置题目

  [segmentedControl insertSegmentWithTitle:@"insert" atIndex: animated:NO];

   // 移除指定索引的选项

  [segmentedControl removeSegmentAtIndex: animated:NO];

   // 设置指定索引选项的宽度

  [segmentedControl setWidth:70.0 forSegmentAtIndex:];

   // 设置选项中图片等的左上角的位置

  [segmentedControl setContentOffset:CGSizeMake(10.0,10.0) forSegmentAtIndex:];

  //获取指定索引选项的图片imageForSegmentAtIndex：

  UIImageView *imageForSegmentAtIndex = [[UIImageViewalloc]initWithImage:[segmentedControl imageForSegmentAtIndex:]];

  imageForSegmentAtIndex.frame = CGRectMake(60.0, 120.0, 30.0, 30.0);  ;

  //获取指定索引选项的标题titleForSegmentAtIndex

  UILabel *titleForSegmentAtIndex = [[UILabel alloc]initWithFrame:CGRectMake(100.0, 160.0, 30.0, 30.0)];

  titleForSegmentAtIndex.text = [segmentedControl titleForSegmentAtIndex:]; 

  //获取总选项数segmentedControl.numberOfSegments

  UILabel *numberOfSegments = [[UILabel alloc]initWithFrame:CGRectMake(140.0, 170.0, 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, 210.0, 70.0, 30.0)];

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

   // [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

    [mySegmentedControladdTarget:selfaction:@selector(didClicksegmentedControlAction:)forControlEvents:UIControlEventValueChanged];  

-(void)didClicksegmentedControlAction:(UISegmentedControl *)Seg{

  NSInteger Index = Seg.selectedSegmentIndex;

  NSLog(@"Index %i", Index);

  switch (Index) {

    case :

      [self selectmyView1];

      break;

    case :

      [self selectmyView2];

      break;

    case :

      [self selectmyView3];

      break;

    case :

      [self selectmyView4];

      break;

…………………………………….

    default:

      break;

  }

}