AsyncTask中的java错误导致随机响应

Question

我正在使用AsyncTask进行网络调用。如果成功，它应该返回一个JSON数组，到目前为止，它在我测试的设备（Google nexus 5）上运行良好。 但在摩托罗拉的设备上，它不起作用。从某种意义上说，它甚至没有向服务器发送请求

以下是代码：

private class SimpleTask extends AsyncTask<String, Void, String> {
    ProgressDialog dialog;

    @Override
    protected void onPreExecute()
    {
        dialog = new ProgressDialog(MainActivity.this,ProgressDialog.STYLE_SPINNER);
        dialog.setMessage("Loading Engine");
        dialog.show();
    }

    protected String doInBackground(String... urls)   {
        String result = "";
        try {

            //HttpGet httpGet = new HttpGet(urls[0]);
            HttpPost httpPost = new HttpPost(urls[0]);
            HttpClient client = new DefaultHttpClient();

            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
            nameValuePairs.add(new BasicNameValuePair("number",details));

            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            HttpResponse response = client.execute(httpPost);

            int statusCode = response.getStatusLine().getStatusCode();

            if (statusCode == 200) {
                InputStream inputStream = response.getEntity().getContent();
                BufferedReader reader = new BufferedReader
                        (new InputStreamReader(inputStream));
                String line;
                while ((line = reader.readLine()) != null) {
                    result += line;
                }
            }

        } catch (ClientProtocolException e) {

        } catch (IOException e) {

        }
        //Log.w("PREMIERE::::",result);
        return result;
    }

    protected void onPostExecute(String jsonString)  {
        //dialog.dismiss();
        try {
            if ((this.dialog != null) && this.dialog.isShowing()) {
                this.dialog.dismiss();
            }
        } catch (final IllegalArgumentException e) {
            // Handle or log or ignore
        } catch (final Exception e) {
            // Handle or log or ignore
        } finally {
            this.dialog = null;
        }
        showData(jsonString);
    }
}

private void showData(String jsonString)
{
   // try
   // {
        Log.w("VALS:",""+jsonString);
        Gson gson = new Gson();
        JsonParser parser = new JsonParser();
        JsonArray jArray = parser.parse(jsonString).getAsJsonArray();
        SharedPreferences pref = getSharedPreferences("ActivitySession", Context.MODE_PRIVATE);
        for(JsonElement obj : jArray )
        {
            MainPojo cse = gson.fromJson( obj , MainPojo.class);
            uid.add(cse);

        }
        if(!uid.isEmpty())
        {
            new SimpleTask2().execute(URL2);
        }
        else
        {
            Snackbar.make(this.findViewById(安卓.R.id.content), "Invalid Credentials", Snackbar.LENGTH_LONG).show();
        }
   /*
    }
    catch (Exception e){
        Snackbar.make(this.findViewById(安卓.R.id.content), "Check data connection", Snackbar.LENGTH_LONG).show();
        e.printStackTrace();
    }*/

}

我故意没有捕捉到异常，并通过Crashlytics追踪到错误。错误发生在这一行

JsonArray jArray = parser.parse(jsonString).getAsJsonArray();

上面写着：

Fatal Exception: java.lang.IllegalStateException: This is not a JSON Array.

我认为当响应为空时也会发生这种情况，而且由于我无法在服务器中跟踪请求，我认为这是因为没有发送任何请求。（如果错了，请纠正我）

所以，我的问题是：我是否遗漏了什么|或者我定义任务的方式是否有任何错误

编辑1

PS: I am using an HTTPS URL in this AsyncTask

Answer 1

在Crashalitics中，您可以记录调试消息，并从捕获的异常中堆栈跟踪。因此，你的答案是适当地收集这些信息，然后问题就会清楚了

   // catch everythin n log everything
   } catch (ClientProtocolException e) {
       Crashlytics.logException(e);
    } catch (IOException e) {
       Crashlytics.logException(e);
    }

在可能发生的崩溃之前，还要记录日志消息

Crashlytics.log("Here is the async task that keeps giving me headache");