new JS<->Android interface code

...
->Compose received information fragments into one javascript code
js_url = intent.getStringArrayExtra("js_url");
playfunc = intent.getStringExtra("playfunc");

for (int i = 0;i < js_url.length;i++) {
            String funcPtr = "";
            if (js_url[i] == null) {
                break;
            }
            if (i == 0) {
                funcPtr = playfunc;
            }
            js_url_string = js_url_string +
                    " var script=document.createElement('script'); "
                    + " script.setAttribute('type','text/javascript'); "
                    + " script.setAttribute('src', '"
                    + js_url[i]
                    + "'); "
                    + " script.onload = function() {"
                    + funcPtr + ";"
                    + "};"
                    + " document.getElementsByTagName('head')[0].appendChild(script); ";
        }
       
        System.out.println(js_url_string);
->Create a WebView not used for display but executing javascript code       
        WebView myWebView = new WebView(this);
        myWebView.getSettings().setJavaScriptEnabled(true);
        myWebView.getSettings().setBuiltInZoomControls(true);
        System.out.println(android.os.Build.VERSION.SDK_INT);
        if(android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
            myWebView.getSettings().setAllowUniversalAccessFromFileURLs(true);
        }
        myWebView.setWebChromeClient(new WebChromeClient());
        myWebView.setWebViewClient(new WebViewClient() {
            @Override
            public void onPageFinished(WebView view, String url) {
                view.loadUrl("javascript:(function() { "
                        + js_url_string
                        + "})()");
            }
        });
->Create a JS-Android Interface name
        myWebView.addJavascriptInterface(new MyAndroidJSInterface(this, SecondActivity.class), "atv");
->As a activation key for starting off running javascript later
        myWebView.loadUrl("file:///android_asset/tmp.html");