UISegmentedControl使用技巧

NSArray *arry = [NSArray arrayWithObjects:[UIImage imageNamed:@"bird_blue.png"],@"今天",[UIImage imageNamed:@"bird_red2.png"],[UIImage imageNamed:@"bird_yellow.png"], nil];
        // 设置文本信息
        NSArray *arry1 = @[@"今天", @"昨天", @"后天"];
        // 定会以一个UISegmentedControl
        UISegmentedControl *segmentControl = [[UISegmentedControl alloc]initWithItems:arry];
        // 设置UISegmentedControl的大小
        segmentControl.frame = CGRectMake(10, 40, 300, 60);
        // 在某个位置插入一个图片
        [segmentControl insertSegmentWithImage:[UIImage imageNamed:@"bird_yellow.png"] atIndex:3 animated:YES];
        NSLog(@"%d", segmentControl.numberOfSegments);
        // 设置某个选项被选中
        segmentControl.selectedSegmentIndex = 2;
        // 为segmentControl添加时间
        [segmentControl addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventValueChanged];
        // 实现连点功能
        segmentControl.momentary = YES;
        // 添加到当前的view视图中
        [self addSubview:segmentControl];
        [segmentControl release];

- (void)btnClick:(UISegmentedControl *)segmnet
{
    NSLog(@"%d", segmnet.selectedSegmentIndex);
    switch (segmnet.selectedSegmentIndex) {
        case 0:
            NSLog(@"选中0");
            break;
        case 1:
            NSLog(@"选中1");
            break;  
        default:
            break;
    }