JSON parsing in android: No value for x error

Question

Here is the code I\'m using inside my AsyncTask

DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet request = new HttpGet(url);    
request.s         


        

Answer 1

No value for x error message is pretty common when dealing with JSON. This usually resulted by overlooked code.

usually, when dong JSON, I try to see the human readable structure first. For that, I usually use JSONViewer.

In your case, the structure is something like this:

You see that make is within another object called GetJSONObjectResult. Therefore, to get it, you must first get the container object first:

JSONObject vehicle = ((JSONObject)new JSONObject(result)).getJSONObject("GetJSONObjectResult");
//a more easy to read
JSONObject container = new JSONObject(result);
JSONObject vehicle = container.getJSONObject("GetJSONObjectResult");

and finally use the object to get make:

makeEdit.setText(vehicle.getString("make"));
plateEdit.setText(vehicle.getString("plate"));
modelEdit.setText(vehicle.getString("model"));
yearEdit.setText(vehicle.getString("year"));