JSON Parsing works on Android 4.0 but not on Android < 4.0

android, json, parsing

Solution

It is possible that the `JSONObject` parser has been made more lenient in newer Android releases. The error message you are getting appears to be due to dubiously-legal JSON, particularly on the receiving side:

- Issue initializing a JSONObject

- JSON parsing problem

I would suggest that you write your downloaded JSON out to a file and compare it with your original to see if there is a problem with the download logic.

UPDATE

I cannot reproduce your problem. Loading that JSON off of external storage works perfectly fine on Android 4.0.3., 2.3.3, 2.2, and 2.1, using the following activity (note: I was lazy and hard-wired in the path to external storage):

package com.commonsware.jsontest;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import org.json.JSONException;
import org.json.JSONObject;

public class JSONTestActivity extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    try {
      BufferedReader in=
          new BufferedReader(new FileReader("/mnt/sdcard/test.json"));
      String str;
      StringBuilder buf=new StringBuilder();

      while ((str=in.readLine()) != null) {
        buf.append(str);
        buf.append("\n");
      }

      in.close();
      JSONObject json=new JSONObject(buf.toString());

      ((TextView)findViewById(R.id.stuff)).setText(json.toString());
    }
    catch (IOException e) {
      Log.e(getClass().getSimpleName(), "Exception loading file", e);
    }
    catch (JSONException e) {
      Log.e(getClass().getSimpleName(), "Exception parsing file", e);
    }
  }
}

Problem

Original source

Related problems

• JSON parsing problem
• JSON parsing problem