UISegmentedControl的使用

 #import "SegmentedControlTestViewController.h"

     @implementation SegmentedControlTestViewController

     @synthesize segmentedControl;

     - (void)viewDidLoad {

         NSArray *segmentedArray = [[NSArray alloc]initWithObjects:@"",@"",@"",@"",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:];//设置指定索引的题目

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

         [segmentedControl insertSegmentWithImage:[UIImage imageNamed:@"mei.png"] atIndex: animated:NO];//在指定索引插入一个选项并设置图片

         [segmentedControl insertSegmentWithTitle:@"insert" atIndex: animated:NO];//在指定索引插入一个选项并设置题目

         [segmentedControl removeSegmentAtIndex: animated:NO];//移除指定索引的选项

         [segmentedControl setWidth:70.0 forSegmentAtIndex:];//设置指定索引选项的宽度

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

         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:];

         //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:]];

         segmentedControl.selectedSegmentIndex = ;//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:];//设置指定索引选项不可选

         BOOL enableFlag = [segmentedControl isEnabledForSegmentAtIndex:];//判断指定索引选项是否可选

         NSLog(@"%d",enableFlag);

         [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];

     }

    @end