Use this WKNavigationDelegate method public func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Swift.Void) { if(navigationAction.navigationType == .other) { if let redirectedUrl = navigationAction.request.url { //do what you need with url //self.delegate?.openURL(url: redirectedUrl) } decisionHandler(.cancel) return } decisionHandler(.allow) } Hope this helps
It’s possible to connect Safari browser on your Mac to the WKWebView and get access to the console. From Safari, open “Develop” tab and while the iOS Simulator is running with the WKWebView open – just click it to open the console. See:
In webView Delegate method – (void)webViewDidFinishLoad:(UIWebView *)webView add the following codebase, mainWebViewObj.scrollView.contentInset = UIEdgeInsetsMake(headerView.frame.size.height,0.0,headerView.frame.size.height,0.0); mainWebViewObj.scrollView.backgroundColor = [UIColor whiteColor]; if(![headerView superview]) { [webView.scrollView addSubview:headerView]; [webView.scrollView bringSubviewToFront:headerView]; } [mainWebViewObj.scrollView setContentOffset: CGPointMake(0, -mainWebViewObj.scrollView.contentInset.top) animated:NO]; this worked perfect for me. Hope it solves your problem.
Update: This is not working on iOS 12+ anymore. I solved this problem by waiting for result until result value is returned. I used NSRunLoop for waiting, but I’m not sure it’s best way or not… Here is the category extension source code that I’m using now: @interface WKWebView(SynchronousEvaluateJavaScript) – (NSString *)stringByEvaluatingJavaScriptFromString:(NSString *)script; @end @implementation … Read more
Without taking a look at your actual project it’s difficult to give some hundreed percent sure advices. However: class ViewController: UIViewController { var webView = WKWebView() override func viewDidLoad() { super.viewDidLoad() webView.translatesAutoresizingMaskIntoConstraints = false let views = [ “webView” : webView ] view.addSubview(webView) var constraints = NSLayoutConstraint.constraintsWithVisualFormat(“H:|[webView]|”, options: [.AlignAllLeading, .AlignAllTrailing], metrics: nil, views: views) constraints.appendContentsOf(NSLayoutConstraint.constraintsWithVisualFormat(“V:|[webView]|”, … Read more
You’ll be happy to hear that WKWebView just gained a customUserAgent property in iOS 9 and OSX 10.11 Example: wkWebView.customUserAgent = “your agent”
Updated for Swift 4, Xcode 9.3 This methods allows WKWebView to properly read your hierarchy of directories and sub-directories for linked CSS, JS and most other files. You do NOT need to change your HTML, CSS or JS code. Solution (Quick) Add the web folder to your project (File > Add Files to Project) Copy … Read more
For iOS 10+ using Swift: self.webView = WKWebView() self.webView!.isOpaque = false self.webView!.backgroundColor = UIColor.clear self.webView!.scrollView.backgroundColor = UIColor.clear
I’ve been looking for a good explanation myself, but haven’t found one. I’ve used the following in my app and everything seems to work (Edit: updated based on ccoroom’s comment): UIWebViewDelegate – webView:shouldStartLoadWithRequest:navigationType: WKNavigationDelegate – webView:decidePolicyForNavigationAction:decisionHandler: Here’s the other UIWebViewDelegate methods: UIWebViewDelegate – webViewDidStartLoad: WKNavigationDelegate – webView:didCommitNavigation: UIWebViewDelegate – webViewDidFinishLoad: WKNavigationDelegate – webView:didFinishNavigation: UIWebViewDelegate – … Read more
(I filed a Radar for this shortly after asking the question here.) A new method was just added a few days ago (thanks jcesarmobile for pointing it out): Add -[WKWebView evaluateJavaScript:completionHandler:] http://trac.webkit.org/changeset/169765 The method is available in iOS 8 beta 3 and up. Here’s the new method signature: /* @abstract Evaluates the given JavaScript string. … Read more