ios - 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 UICollectionView. If I am on the first cell or the second cell and I swipe up then I can easily focus on the UIButton. When I am on the third cell then I am not able to move the focus to the UIButton. Any ideas what is going on?

Answer 1

You should use a UIFocusGuide that encompasses the UIButton you want to focus. Make the UIFocusGuide as wide as the collectionView and tall enough to cover the button. Make the preferredFocusView the button.

  UIFocusGuide *topButtonFocusGuide = [[UIFocusGuide alloc] init];
  topButtonFocusGuide.preferredFocusedView = myButton;
  [self.view addLayoutGuide:topButtonFocusGuide];

  [self.view addConstraints:@[
    [topButtonFocusGuide.topAnchor constraintEqualToAnchor:myButton.topAnchor],
    [topButtonFocusGuide.bottomAnchor constraintEqualToAnchor:myCollectionView.topAnchor],
    [topButtonFocusGuide.leadingAnchor constraintEqualToAnchor:myCollectionView.leadingAnchor],
    [topButtonFocusGuide.widthAnchor constraintEqualToAnchor:myCollectionView.widthAnchor],
  ]];