Xcode VisualEffectView 防止与其他视图交互答案

【问题标题】：Xcode VisualEffectView preventing interaction with other viewsXcode VisualEffectView 防止与其他视图交互
【发布时间】：2019-07-19 12:09:08
【问题描述】：

我的应用有一个 wkwebview，我设置了一个弹出框来显示应用信息。我使用来自 youtube 的教程添加了一个视觉效果视图。效果很好，问题是现在它似乎阻止了我与 webview 交互。我认为这与子视图的处理方式有关。但我不知道如何解决它。

import UIKit
import WebKit
import SafariServices

class ViewController: UIViewController, WKNavigationDelegate {

var effect:UIVisualEffect!

@IBOutlet var webView: WKWebView!

@IBOutlet var activityIndicator: UIActivityIndicatorView!

@IBOutlet weak var visualEffectView: UIVisualEffectView!

override func viewDidLoad() {
    super.viewDidLoad()
    self.aboutPopOver.layer.cornerRadius = 10

    effect = visualEffectView.effect
    visualEffectView.effect = nil

    webView.navigationDelegate = self

    activityIndicator.startAnimating()
    activityIndicator.isHidden = true
    activityIndicator.hidesWhenStopped = true

    let url = Bundle.main.url(forResource: "Web/bulk_material_table", withExtension: "html")!
    webView.loadFileURL(url, allowingReadAccessTo: url)
    let request = URLRequest(url: url)
    self.webView.load(request)


}

func animateIn() {
    aboutPopOver.center = self.view.center

    aboutPopOver.transform = CGAffineTransform.init(scaleX: 1.3, y: 1.3)
    aboutPopOver.alpha = 0

    UIView.animate(withDuration: 0.4) {
        self.visualEffectView.effect = self.effect
        self.aboutPopOver.alpha = 1
        self.aboutPopOver.transform = CGAffineTransform.identity
    }

}


func animateOut () {
    UIView.animate(withDuration: 0.3, animations: {
        self.aboutPopOver.transform = CGAffineTransform.init(scaleX: 1.3, y: 1.3)
        self.aboutPopOver.alpha = 0

        self.visualEffectView.effect = nil

    }) { (success:Bool) in
        self.aboutPopOver.removeFromSuperview()
    }
}

func showActivityIndicator(show: Bool) {
    if show {
        activityIndicator.startAnimating()
    } else {
        activityIndicator.stopAnimating()
    }
}

func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    showActivityIndicator(show: false)
}

func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
    showActivityIndicator(show: true)
}

func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
    showActivityIndicator(show: false)
}

@IBAction func openURL(_ sender: Any) {

    guard let url = URL(string: "https://hapman.com") else {
        return
    }

    let safariVC = SFSafariViewController(url: url)
    present(safariVC, animated: true, completion: nil)
}

@IBOutlet var aboutPopOver: UIView!

@IBAction func aboutPopButton(_ sender: Any) {

 self.view.addSubview(aboutPopOver)
    aboutPopOver.center = self.view.center
    animateIn()
}

@IBAction func donePopButton(_ sender: Any) {

    self.aboutPopOver.removeFromSuperview()
    animateOut()
}
}

【问题讨论】：

不确定是否可行，但请尝试visualEffectView. isUserInteractionEnabled = false
就是这样！有时事情就是这么简单。谢谢你。如果您将其发布为答案，我会将其标记为如此。非常感谢！

标签： ios swift xcode webview effect

【解决方案1】：

尝试将UIVisualEffectView 的isUserInteractionEnabled 设置为false。

visualEffectView.isUserInteractionEnabled = false

isUserInteractionEnabled 是从UIView 继承的属性。虽然它在某些子类（如UILabel）上默认关闭，但在UIVisualEffectView 上设置为true。

【讨论】：