UIPageControl - How to make the background transparent?

Question

I am using UIPageControl and trying to make the background transparent.

UIPageControl *pageControl = [UIPageControl appearance];
pageControl.pageInd         


        

Answer 1

I finally found a working solution for this problem in Swift. You can find the original code and answer in this link.

It requires you to override the viewDidLayoutSubviews() function to bring the page control to the front of the view.

override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()

        let subViews: NSArray = view.subviews
        var scrollView: UIScrollView? = nil
        var pageControl: UIPageControl? = nil

        for view in subViews {
            if view.isKindOfClass(UIScrollView) {
                scrollView = view as? UIScrollView
            }
            else if view.isKindOfClass(UIPageControl) {
                pageControl = view as? UIPageControl
            }
        }

        if (scrollView != nil && pageControl != nil) {
            scrollView?.frame = view.bounds
            view.bringSubviewToFront(pageControl!)
        }
    }