Il collegamento è http://iipacademy.in/askpoll/ten_feed.phpJSON tipo disadattamento o org.json.jsonecxeption
eccezione è OnPostExecute() metodo (linea 4):
Log.i("result", result);
try {
if (result != null) {
JSONArray jsonArray = new JSONArray(result); // erreor
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject objJson = jsonArray.getJSONObject(i);
TopTenGetterSetter obj = new TopTenGetterSetter();
obj.setQ(objJson.getString("question"));
obj.setA(objJson.getString("option1"));
obj.setB(objJson.getString("option2"));
obj.setC(objJson.getString("option3"));
obj.setD(objJson.getString("option4"));
polls.add(obj);
}
}
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(), "error",
Toast.LENGTH_SHORT).show();
}
Logcat:
12-18 03:20:45.447: W/System.err(2790): org.json.JSONException: Value response of type java.lang.String cannot be converted to JSONArray
12-18 03:20:45.447: W/System.err(2790): at org.json.JSON.typeMismatch(JSON.java:111)
12-18 03:20:45.447: W/System.err(2790): at org.json.JSONArray.<init>(JSONArray.java:91)
12-18 03:20:45.447: W/System.err(2790): at org.json.JSONArray.<init>(JSONArray.java:103)
12-18 03:20:45.447: W/System.err(2790): at com.example.askpollie.LatestPollParticipated$FetchingEventsDetails.onPostExecute(LatestPollParticipated.java:188)
12-18 03:20:45.447: W/System.err(2790): at com.example.askpollie.LatestPollParticipated$FetchingEventsDetails.onPostExecute(LatestPollParticipated.java:1)
12-18 03:20:45.447: W/System.err(2790): at android.os.AsyncTask.finish(AsyncTask.java:631)
12-18 03:20:45.447: W/System.err(2790): at android.os.AsyncTask.access$600(AsyncTask.java:177)
12-18 03:20:45.447: W/System.err(2790): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
12-18 03:20:45.447: W/System.err(2790): at android.os.Handler.dispatchMessage(Handler.java:99)
12-18 03:20:45.447: W/System.err(2790): at android.os.Looper.loop(Looper.java:137)
12-18 03:20:45.447: W/System.err(2790): at android.app.ActivityThread.main(ActivityThread.java:5103)
12-18 03:20:45.447: W/System.err(2790): at java.lang.reflect.Method.invokeNative(Native Method)
12-18 03:20:45.447: W/System.err(2790): at java.lang.reflect.Method.invoke(Method.java:525)
12-18 03:20:45.447: W/System.err(2790): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
12-18 03:20:45.447: W/System.err(2790): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
12-18 03:20:45.447: W/System.err(2790): at dalvik.system.NativeStart.main(Native Method)
12-18 03:20:45.447: D/dalvikvm(2790): GC_FOR_ALLOC freed 5131K, 55% free 4437K/9672K, paused 2ms, total 2ms
Messaggio è un array quindi quale dovrebbe essere il suo codice o come può essere risolto?
Grazie in anticipo. . .
dato che il servizio web restituisce 'JSONObject' come elemento radice invece di' JSONArray' –
si potrebbe usare qualcosa come 'new org.json.simple.parser.JSONParser(). Parse (" jsonString ");' per ottenere JsonArray. – Runcorn
pubblica i tuoi dati JSON –