UI UIPageControl

<span style="font-size:18px;">    UIPageControl *pageControl=[[UIPageControl alloc]initWithFrame:CGRectMake(50, 400, 200, 50)];    pageControl.backgroundColor=[UIColor orangeColor];    //设置页数    pageControl.numberOfPages=5;    //设置当前页指到那一页    pageControl.currentPage=2;    //设置小圆点的颜色    pageControl.pageIndicatorTintColor=[UIColor blueColor];    //设置当前页小圆点的颜色    pageControl.currentPageIndicatorTintColor=[UIColor blackColor];    [pageControl addTarget:self action:@selector(pageControlAction:) forControlEvents:UIControlEventValueChanged];    [self.view addSubview:pageControl];    [pageControl release];    - (void)pageControlAction:(UIPageControl*)pageControl{    NSLog(@"%d",pageControl.currentPage);}</span>