如何快速隐藏UIPopoverPresentationController的模糊？

Question

我已经为UIButton实现了popover：

    @objc func showList(sender: AnyObject?) {

        guard let buttonView = sender?.value(forKey: "view") as? UIButton else { return }
        guard let popVC = R.storyboard.first.VC() else { return }
        popVC.modalPresentationStyle = .popover
        let popOverVC = popVC.popoverPresentationController
        popOverVC?.delegate = self
        popOverVC?.sourceView = buttonView
        popOverVC?.sourceRect = CGRect(x: 0, y: 190, width: 0, height: 0)
        popOverVC?.permittedArrowDirections = .init(rawValue: 0)

        popVC.preferredContentSize = CGSize(width: 150, height: 250)

        showedViewController.present(popVC, animated: true, completion: nil)
    }


extension VCInteractor: UIPopoverPresentationControllerDelegate {

    func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
        return .none
    }
}

它工作正常，但是我需要一个修复程序-我想UIVisualEffectBackdropView为弹出窗口隐藏起来（就像UITableViewController下的模糊效果一样）。因此，我找不到任何有关如何禁用（隐藏）这种模糊的信息，您有任何想法吗？

Answer 1

我已经解决了自定义类的问题

class PopoverBackgroundView: UIPopoverBackgroundView {

    override init(frame: CGRect) {
        super.init(frame: frame)
        self.layer.shadowColor = UIColor.clear.cgColor

    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override static func contentViewInsets() -> UIEdgeInsets {
        return UIEdgeInsets.zero
    }

    override static func arrowHeight() -> CGFloat {
        return 0
    }

    override var arrowDirection: UIPopoverArrowDirection {
        get { return UIPopoverArrowDirection.down }
        set {
            setNeedsLayout()
        }
    }

    override var arrowOffset: CGFloat {
        get { return 0 }
        set {
            setNeedsLayout()
        }
    }
}

并且我已经像那样添加了它

popOverVC?.popoverBackgroundViewClass = PopoverBackgroundView.self

就这样