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1.创建一个页码控制器(小圆点)
UIPageControl *pc = [[UIPageControl alloc] initWithFrame:CGRectMake(,,,)];
2.小圆点的个数
pc.numberOfPages = 3;
pc.userInteractionEnabled = NO;
3.设置小点点的颜色
pc.currentPageIndicatorTintColor = [UIColor ...];//当前图的颜色
pc.pageIndicatorTintColor = [UIColor ....];
4.//sv停止滑行时触发
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
NSLog(@"==%@",NSStringFromCGPoint(scrollView.contentOffset));
UIPageControl *pc = (UIPageControl *)[self.view viewWithTag:1];
pc.currentPage = scrollView.contentOffset.x / scrollView.frame.size.width;
//根据x方向的偏移量计算当前是在第几页,然后让对应的小圆点亮起来
}
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原文地址:http://www.cnblogs.com/Angelone/p/4388319.html