ios - Swift 中的弹出 View

Question

我有一个弹出 View (没有标签栏)，它被弹出到带有标签栏的 View Controller 。在带有选项卡栏的 View Controller 中，我设置了一个单击按钮，以便弹出 View Controller :

  @IBAction func PopUpClicked(_ sender: UIButton) -> Void {

        let popOverVC = UIStoryboard(name: "SpinningWheel", bundle: nil).instantiateViewController(withIdentifier: "PhotoPopUp") as! PopUpViewController

        self.addChildViewController(popOverVC)

        popOverVC.view.frame = self.view.frame
        self.view.addSubview(popOverVC.view)
        popOverVC.didMove(toParentViewController: self)
    }

在 popOver View Controller 中，我对弹出窗口进行了动画处理。

override func viewDidLoad() {
        super.viewDidLoad()

        self.view.backgroundColor = UIColor.black.withAlphaComponent(0.8)


        self.showAnimate()

        // Do any additional setup after loading the view.
    }


      func showAnimate()
        {
            self.view.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
            self.view.alpha = 0.0;
            UIView.animate(withDuration: 0.25, animations: {
                self.view.alpha = 1.0
                self.view.transform = CGAffineTransform(scaleX: 1.0, y: 1.0)

            });
        }

        func removeAnimate()
        {
            UIView.animate(withDuration: 0.25, animations: {
                self.view.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
                self.view.alpha = 0.0;

            }, completion:{(finished : Bool)  in
                if (finished)
                {
                    self.view.removeFromSuperview()
                }
            });
        }

但是当出现弹出窗口时，所有内容都有一个褪色的黑色背景，我想要这样，除了标签栏。我希望 View 上方的弹出框也可以弹出标签栏，并且褪色的黑色背景可以覆盖它。

这就是我想要的样子:

黑色褪色背景覆盖标签栏

Answer 1

发生这种情况是因为您必须将弹出窗口显示为模态 ViewController。为此，您必须在从目标 ViewController 呈现弹出窗口之前设置模态呈现样式。应该在您呈现的 ViewController 中调用此代码:

let vc = YourPopOverViewController(nib: UINib(name: "PopOverViewController", bundle: nil), bundle: nil)
vc.modalPresentationStyle = UIModalPresentationStyle.OverCurrentContext

tabBarController.present(vc, animated: true)

编辑:

如果您将 PopOverViewController 设计为全屏 ViewController，这应该可以解决问题。我已经这样做了很多次，并留下了不应作为清晰背景呈现的空间:

@IBAction func PopUpClicked(_ sender: UIButton) -> Void {
    let popOverVC = UIStoryboard(name: "SpinningWheel", bundle: nil).instantiateViewController(withIdentifier: "PhotoPopUp") as! PopUpViewController
    popOverVc.modalPresentationStyle = UIModalPresentationStyle.OverCurrentContext
    tabBarController.present(popOverVC, animated: true)
}