swift - 如何在swift中为UI页面控制点仅设置layer.border-color

Question

need to set border color for page control using programmatically or interface builder Border should not set to complete page control Just need to apply border color for dots.

我知道 UIcontrol 没有图层属性，它是页面控制的父类(super class)

我尝试在其上添加动态 View 。

如果还有其他可能的方法，请告诉我

Answer 1

使用如下代码:

for (int i = 0; i < _pageControl.numberOfPages; i++) {

        UIView* dot = [_pageControl.subviews objectAtIndex:i];
        if (i == _pageControl.currentPage) {
            dot.backgroundColor = [UIColor whiteColor];
            dot.layer.cornerRadius = dot.frame.size.height / 2;
        } else {
            dot.backgroundColor = [UIColor clearColor];
            dot.layer.cornerRadius = dot.frame.size.height / 2;
            dot.layer.borderColor = [UIColor whiteColor].CGColor;
            dot.layer.borderWidth = 1;
        }
    }

希望对你有帮助。