1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.example.android.wearable.quiz;
18 
19 import android.content.Context;
20 
21 import org.json.JSONException;
22 import org.json.JSONObject;
23 
24 import java.io.IOException;
25 import java.io.InputStream;
26 
27 final class JsonUtils {
28     public static final String JSON_FIELD_QUESTIONS = "questions";
29     public static final String JSON_FIELD_QUESTION = "question";
30     public static final String JSON_FIELD_ANSWERS = "answers";
31     public static final String JSON_FIELD_CORRECT_INDEX = "correctIndex";
32     public static final int NUM_ANSWER_CHOICES = 4;
33 
JsonUtils()34     private JsonUtils() {
35     }
36 
loadJsonFile(Context context, String fileName)37     public static JSONObject loadJsonFile(Context context, String fileName) throws IOException,
38             JSONException {
39         InputStream is = context.getAssets().open(fileName);
40         int size = is.available();
41         byte[] buffer = new byte[size];
42         is.read(buffer);
43         is.close();
44         String jsonString = new String(buffer);
45         return new JSONObject(jsonString);
46     }
47 }
48