how to Add timeout for WKWebview - ios

Question

How to write a timeout handler for WKWebView, when default delegates are not getting called for didFailNavigation.
WKWebView delegate are set & DidFinishNavigation or didFailProvisionalNavigation is getting called.

Answer 1

Use the error.code value of the error that didFailProvisionalNavigation creates and add your 'handler' code there:
func webView(webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError) {
if error.code == -1001 { // TIMED OUT:
// CODE to handle TIMEOUT
} else if error.code == -1003 { // SERVER CANNOT BE FOUND
// CODE to handle SERVER not found
} else if error.code == -1100 { // URL NOT FOUND ON SERVER
// CODE to handle URL not found
}
}

Answer 2

Use this delegate method
webView:didFailProvisionalNavigation:withError:
Document
Invoked when an error occurs while starting to load data for the main frame.
And check the error code
NSURLErrorTimedOut = -1001
All the error code list

Answer 3

One possible solution is to add custom timer, which starts as you call loadHTML, loadRequest methods and times out on custom interval

Answer 4

Compared to Timer , asyncAfter(deadline:) is more light-weighted.
var isTimeOut = true
DispatchQueue.main.asyncAfter(deadline: .now() + timeOut) {
if isTimeOut{
// do time out thing
}
}
check isTimeOut according to WKNavigationDelegate
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!){
isTimeOut = false
}