UIPageControl

1. numberOfPages

//  设置页数
[pageControl setNumberOfPages:kImageCount];

2. currentPage

// 设置当前页
[pageControl setCurrentPage:0];

3. pageIndicatorTintColor

// 设置页码指示器颜色
[pageControl setPageIndicatorTintColor:[UIColor blackColor]];

4. currentPageIndicatorTintColor

// 设置当前页码指示器颜色
[pageControl setCurrentPageIndicatorTintColor:[UIColor redColor]];

5. 添加分页控件的监听事件（监听值改变事件）

[pageControl addTarget:self action:@selector(pageChanged:) forControlEvents:UIControlEventValueChanged];