UICollectionViewCell to UIButton Focus in tvOS

Question

I have a UICollectionView which contains 12-13 UICollectionViewCells. I can easily focus on the UICollectionViewCells and everything works. There is a UIButton outside the U

Answer 1

One of the issues I was facing involved using a UINavigationController for the landing pages to push detail ViewControllers onto the stack when an item is selected.

I put a breakpoint inside the UIButton's canBecomeFocused override, and using this quick little extension asked the button why it is not focusable.

extension UIView {
    func whyNotFucusable () {
        print(self.perform(Selector(("_whyIsThisViewNotFocusable"))).takeUnretainedValue())
    }
}

I kept receiving the following error trying to debug....

ISSUE: This view may not be focusable because other views or focus guides are occluding it.

First of all I looked up in the dictionary what the heck occluding meant....

verb, formal, technical 
     - stop, close up, or obstruct (an opening, orifice, or passage).

The question now was what view is obstructing my UIButton???

I quickly unwrapped the UI in the visual debugger, and there was a clear view on top of my UIButtons. Inspecting the view I found out that Unlike iOS, where the nagivationBar has a default system background color, tvOS's implementation has a clear default color. I realized that I didn't hide the nav bar, and in return it was obstructing my buttons.

I did the following, and it fixed all my issues :)

navController.setNavigationBarHidden(true, animated: false)

Hope this helps!!!