从UIWebView将JavaScript添加到页面

Question

I'm making webView in Xcode and i want to add javascript code into any page content which user loads.So is there a way to add javascript code into page content? Like browser add-on which adds javascript code in every page user enters,and ads appears from page,not from browser. I have this code which show me the whole page(which user enters)data in console,now i need to add javascript code to this page content.

let task = NSURLSession.sharedSession().dataTaskWithURL(url!) {(data, response, error) in let urlContent = NSString(data: data!, encoding: NSUTF8StringEncoding)

ps I'm making app in Swift language Hope you'll get it.thanks

Answer 1

UIWebView中有一个方法。

func stringByEvaluatingJavaScriptFromString(_ script: String) -> String?