按钮在 iPhone X 或 XR 上无效，但在模拟器上有效

Question

我有一个按钮，点击后会变成复选标记。它适用于包括 X 和 XR 在内的所有模拟器，但不适用于实际的 X 或 XR 设备（根据使用 TestFlight 的朋友的说法）。不过，它适用于其他几种设备。想知道是否与 X 和 XR 有什么特别的关系，或者可能是限制，剪辑到界限？问题是它没有显示复选标记或将与其单元格关联的值添加到我拥有的数组中，所以我认为它在这些手机上是不可选的。

let button: UIButton = {
    let button = UIButton()
    button.translatesAutoresizingMaskIntoConstraints = false
    button.layer.masksToBounds = true
    button.isUserInteractionEnabled = true
    button.clipsToBounds = true
    button.contentMode = .scaleAspectFit
    return button
}()

约束

    button.topAnchor.constraint(equalTo: self.topAnchor).isActive = true
    button.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true
    button.rightAnchor.constraint(equalTo: self.rightAnchor, constant: -(width/40)).isActive = true
    button.widthAnchor.constraint(equalToConstant: width/8).isActive = true

手势识别器

private func setupGestureRecognizer() {
    let joinButtonTapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(joinButtonTapped))
    button.addGestureRecognizer(joinButtonTapGestureRecognizer)
}

@objc private func joinButtonTapped() {
    delegate?.joinButtonTapped(inCell: self, button: button)
}

JoinButtonTapped -> 加号按钮到复选标记并将组名添加到数组

extension SearchGroupsVC: GroupsViewCellDelegate {
    func joinButtonTapped(inCell cell: UITableViewCell, button: UIButton) {
        guard let indexPath = tableView.indexPath(for: cell) else { return }
        if searchBar.text?.count != 0 {
            group = filteredTypes[indexPath.row]
        } else {
            group = allGroups[indexPath.row]
        }
        if selected.contains(group) {
            if self.traitCollection.userInterfaceStyle == .dark {
                button.setImage(UIImage(named: "plus_white"), for: .normal)
            } else {
                button.setImage(UIImage(named: "plus_black"), for: .normal)
            }
            selected.remove(at: selected.index(of: group)!)
        } else if !selected.contains(group){
            if self.traitCollection.userInterfaceStyle == .dark {
                button.setImage(UIImage(named: "checkmark_white"), for: .normal)
            } else {
                button.setImage(UIImage(named: "checkmark_black"), for: .normal)
            }
            selected.append(group)
        }
    }
}

Answer 1

不确定这是否可行，但您应该使用addTarget 而不是手势识别器：

// let joinButtonTapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(joinButtonTapped))
// button.addGestureRecognizer(joinButtonTapGestureRecognizer)
// remove this ^

button.addTarget(self, action: #selector(joinButtonTapped), for: .touchUpInside)