How to run javascript in Android KitKat WebView?

Question

I have following code in my WebView

<script src="remote src" param1="value1" param2="value2" ... />;

When it runs on Androids, lower than Kitkat, I use typical

webView.loadDataWithBaseURL(..)

and script works fine. But, as we know, in KitKat WebView had absolutely changed, and scripts should be run as

webView.evaluateJavascript(script, callback);

and now is very unclear how to run my script, which is rendered with the rest of the page, in KitKat.

Answer 1

How about this:

String jScript = "(function() {\n" +
                    "var p=document.getElementsByTagName('head')[0];\n" +
                    "var s=document.createElement(\"script\");\n" +
                    "s.type=\"text/javascript\";\n" +
                    "s.src=\"http://pathtoscript/jscript.js\";\n" +
                    "s.async = true;\n" +
                    "p.appendChild(s);\n" +
                "}\n" +
            "})();\n";

webView.evaluateJavascript(jScript, callback);

But in this case i don't know is there possibility to get a callback.