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 34 private JsonUtils() { 35 } 36 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
