ios – allowsBackForwardNavigationGestures = true在xcode 7.1

发布时间：2020-12-14 19:37:35 所属栏目：百科来源：网络整理

导读：import UIKitimport WebKitclass ViewController: UIViewController,WKNavigationDelegate {var webView : WKWebView!override func loadView() { webView = WKWebView() webView.navigationDelegate = self self.view = webView}override func viewDidLoad(

import UIKit
import WebKit

class ViewController: UIViewController,WKNavigationDelegate {

var webView : WKWebView!

override func loadView() {
    webView = WKWebView()
    webView.navigationDelegate = self
    self.view = webView
}

override func viewDidLoad() {
    super.viewDidLoad()

    let url = NSURL(string: "http://boooo.com")
    webView.loadRequest(NSURLRequest(URL: url!))
    webView.allowsBackForwardNavigationGestures = true



}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()

}


}

一切正常,但allowBackForwardNavigationGestures = true不适用于xcode 7.1.不能在wkwebview中前进和后退.

解决方法

看起来它干扰了navigationController的interactivePopGestureRecognizer(如果你有的话).

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    self.navigationController?.interactivePopGestureRecognizer?.isEnabled = false
}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    self.navigationController?.interactivePopGestureRecognizer?.isEnabled = true
}

所以我在导航堆栈中使用WKWebView时禁用了这个属性！

（编辑：李大同）

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