webView.loadDataWithBaseURL("file:///android_res/raw/", getHtml(), "text/html", "utf-8", null);

<script type="text/javascript" src="mraid.js"></script>

mWebview =(WebView)findViewById(R.id.webviewNews);
            mWebview.getSettings().setUserAgentString("Mozilla/5.0 (Linux; U; Android 2.0; en-us; Droid Build/ESD20) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Mobile Safari/530.17");
            mWebview.getSettings().setJavaScriptEnabled(true); // enable javascript
            mWebview.getSettings().setAppCacheEnabled(true);
            mWebview.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
            mWebview.getSettings().supportZoom();
            mWebview.canGoBack();
            mWebview.loadUrl("http://www.google.com/");