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POResponding to Volley JSONException
 

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    <p>I have a Volley JSONRequest that is getting stuck because the response from the server is not a valid JSON (it's html).</p> <p>How is it possible to gracefully handle this error? I have this implementation:</p> <pre><code>JsonObjectRequest jsObjRequest = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener&lt;JSONObject&gt;() { @Override public void onResponse(JSONObject response) { … something … } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { // TODO Auto-generated method stub Log.i(TAG,"error "+error.toString()); } }); queue.add(jsObjRequest); </code></pre> <p>However when i send the request and get a not valid JSON response, the onErrorResponse doesn't get called. Instead i get an exception </p> <pre><code>08-14 16:26:15.590: D/538 - JsonRequest(27888): exception error Value &lt;!DOCTYPE of type java.lang.String cannot be converted to JSONObject </code></pre> <p>and the whole app crashes.</p> <p>I managed to track that error to the following line in the JsonObjectRequest.java class:</p> <pre><code> @Override protected Response&lt;JSONObject&gt; parseNetworkResponse(NetworkResponse response) { try { Log.d(TAG,"response headers "+response.headers.toString()); String jsonString = new String(response.data, HttpHeaderParser.parseCharset(response.headers)); Log.d(TAG,"json string "+jsonString); return Response.success(new JSONObject(jsonString), HttpHeaderParser.parseCacheHeaders(response)); } catch (UnsupportedEncodingException e) { Log.d(TAG,"parse error"); return Response.error(new ParseError(e)); } catch (JSONException je) { Log.d(TAG,"exception error "+je.getLocalizedMessage()); return Response.error(new ParseError(je)); } } </code></pre> <p>the line that gets called is : <strong>return Response.error(new ParseError(je));</strong></p> <p>How do i catch that so it doesn't crash the app? </p> <p>Thanks in advance!</p>
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    1. USJuan Carlos Ospina Gonzalez
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