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how to call a swift function from javascript

I am injecting a script in UIWebView using Swift. When a certain tap action happens, the script takes care of the handling. While this happens, the JavaScript is supposed to make a call to one of the functions in Swift, which saves the data sent from JavaScript in native variable. Please help me in making this call.

UIWebView

1 Answer
1

For this you need to make a callback from your JavaScript file, I used one JavaScript editor in that,This was the code :-

window.location = "callback://0/"+ pass your value here


And in your swift file, use the UIWebViewDelegate :-

func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {
let urlString = request.url?.absoluteString
//NSLog(@"web request");
//NSLog(@"%@", urlString);
if ((urlString?.range(of: "callback://0/")) != nil) {

// We recieved the callback
let value = urlString?.replacingOccurrences(of: "callback://0/", with: "")



}
}


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