UIPageControl--改变分页指示圆点的大小

思路是重写UIPageControl的setCurrentPage:方法,  代码如下:

/**
 *  改变pageControl中点的大小
 */
- (void)setCurrentPage:(NSInteger)page {
    [super setCurrentPage:page];
    for (NSUInteger subviewIndex = 0; subviewIndex < [self.subviews count]; subviewIndex++) {
        UIImageView* subview = [self.subviews objectAtIndex:subviewIndex];
        CGSize size;
        size.height = ZJHomeTopPageControlWH;
        size.width = ZJHomeTopPageControlWH;
        [subview setFrame:CGRectMake(subview.frame.origin.x, subview.frame.origin.y, size.width,size.height)];
        if (subviewIndex == page) {
            [subview setBackgroundColor:self.currentPageIndicatorTintColor];
        } else {
            [subview setBackgroundColor:self.pageIndicatorTintColor];
        }
    }
}