Thanks Miguel that is a handy trick
On Feb 25, 1:22 am, Miguel Paraz <mpa...@gmail.com> wrote:
> I got the solution by chance. If you make the Javascript VM create a
> new string, by appending a blank string, then this can now be parsed
> as JSON. I don't know why.
>
> On Feb 25, 12:33 pm, Miguel Paraz <mpa...@gmail.com> wrote:
>
> > Hi,
> > I'm trying to pass a JSON structure from my Java code to JavaScript,
> > in a WebView. The HTML file uses the json2.js parser:
>
> > <html>
> > <head>
> > <title>JSON Test</title>
> > <script type="text/javascript" src="./json2.js"/>
> > <script type="text/javascript">
> > function loader() {
> > var jsonData = window.webConnector.load();
> > document.getElementById('original').innerHTML = jsonData;
>
> > var a = JSON.parse(jsonData);
> > document.getElementById('jsonOutput').innerHTML = a;}
>
> > </script>
> > </head>
> > <body onload="loader()">
> > <div id="test">Test</div>
>
> > Original:
> > <div id="original">Original could not be loaded</div>
>
> > JSON Output:
> > <div id="jsonOutput">JSON Could not be Parsed</div>
> > </body>
> > </html>
>
> > The Java:
>
> > public class JsonActivity extends Activity {
> > @Override
> > public void onCreate(Bundle savedInstanceState) {
> > super.onCreate(savedInstanceState);
> > setContentView(R.layout.main);
>
> > final WebView webView = (WebView) findViewById(R.id.webView);
>
> > webView.getSettings().setJavaScriptEnabled(true);
> > webView.addJavascriptInterface(this, "webConnector");
> > webView.loadUrl("file:///android_asset/json.html");
> > }
>
> > public String load() {
> > return "{\"frm\":[[\"name\",\"Miguel\"],[\"age\",\"34\"],[\"rating
> > \",\"low\"],[\"comments\",\"hungry\"]]}";
> > }
>
> > }
>
> > The WebView output is: the JSON text is loaded, but the parsed version
> > is not.
>
> > In LogCat:
> > 02-25 12:20:17.508: DEBUG/WebCore(811): Console: JSON.parse line: 475
> > source: file:///android_asset/json2.js
>
> > which is because of a thrown exception.
>
> > If the JSON text is inlined into the HTML, then it works fine.
>
> > Creating the JSON in the HTML, passing it to Java and parsing it using
> > JSONObject, is fine.
>
> > Is there a security restriction here? Thanks.
>
>
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