WkWebView delay time on Swift

Question

Created Nov ’20

Replies 3

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When I'm trying to load a web page I'm using this part of code:

Code Block let myURL = URL(string:"https://www.apple.com")
let myRequest = URLRequest(url: myURL!)
print(Date())/*Start time 11:47:28*/
self.myWV.load(myRequest)

I could see a delay from 1-3 seconds before to show the page even if I change the url.

Code Block func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
		print(Date())/*End time 11:47:30*/
}

That delay is normal?

I tried with both options:

Added a WKWebView in the Storyboard
Added a WKWebView programmatically.

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Answer 1

OOPer OP

Nov ’20

Accepted Answer

On my Mac mini connected with 100Mbps ethernet cable to Giga-bps fiber-based global network.

Code Block 2020-11-24 23:00:01 +0000
2020-11-24 23:00:02 +0000

I haven't measured to sub-seconds, but I think it took more than one second.
1-3 seconds would not be a big delay, considering what happens behind WKWebView.

The value will change depending on many things, for example, DNS cache.
If you run your code on a well-trained actual device, it may be shorter.

That delay is normal?

Quite normal.

1

Answer 2

bicho OP

Nov ’20

Yes, I agree with it.

I also change the url with a custom backend that is fetching live data from the server and is 6 - 10 seconds before to show the web content into the web view.

Code Block 2020-11-25 09:10:11 +0000
2020-11-25 09:10:16 +0000

Code Block 2020-11-25 09:10:25 +0000
2020-11-25 09:10:31 +0000

Code Block 2020-11-25 09:10:56 +0000
2020-11-25 09:11:10 +0000

I tested on the simulator and also in different devices with LTE connection. Do you think the server could be the reason or the code or the internet connection?

0

Answer 3

OOPer OP

Nov ’20

Do you think the server could be the reason or the code or the internet connection?

All of them possibly. But I will first check the network environment when the delay is far more than a few seconds.

0