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dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/util/PreferenceUtil.java@45:2aa9f933c8d2, 2017-07-18 (annotated)

Committer:
TMBOY
Date:
Tue Jul 18 16:34:48 2017 +0800
Revision:
45:2aa9f933c8d2
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Who changed what in which revision?

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TMBOY 45:2aa9f933c8d2 1 /*
TMBOY 45:2aa9f933c8d2 2 * Copyright (c) 2017 Baidu, Inc. All Rights Reserved.
TMBOY 45:2aa9f933c8d2 3 *
TMBOY 45:2aa9f933c8d2 4 * Licensed under the Apache License, Version 2.0 (the "License");
TMBOY 45:2aa9f933c8d2 5 * you may not use this file except in compliance with the License.
TMBOY 45:2aa9f933c8d2 6 * You may obtain a copy of the License at
TMBOY 45:2aa9f933c8d2 7 *
TMBOY 45:2aa9f933c8d2 8 * http://www.apache.org/licenses/LICENSE-2.0
TMBOY 45:2aa9f933c8d2 9 *
TMBOY 45:2aa9f933c8d2 10 * Unless required by applicable law or agreed to in writing, software
TMBOY 45:2aa9f933c8d2 11 * distributed under the License is distributed on an "AS IS" BASIS,
TMBOY 45:2aa9f933c8d2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
TMBOY 45:2aa9f933c8d2 13 * See the License for the specific language governing permissions and
TMBOY 45:2aa9f933c8d2 14 * limitations under the License.
TMBOY 45:2aa9f933c8d2 15 */
TMBOY 45:2aa9f933c8d2 16 package com.baidu.duer.dcs.util;
TMBOY 45:2aa9f933c8d2 17
TMBOY 45:2aa9f933c8d2 18 import android.content.Context;
TMBOY 45:2aa9f933c8d2 19 import android.content.SharedPreferences;
TMBOY 45:2aa9f933c8d2 20 import android.content.SharedPreferences.Editor;
TMBOY 45:2aa9f933c8d2 21 import android.os.Build;
TMBOY 45:2aa9f933c8d2 22
TMBOY 45:2aa9f933c8d2 23 import java.util.Map;
TMBOY 45:2aa9f933c8d2 24
TMBOY 45:2aa9f933c8d2 25 /**
TMBOY 45:2aa9f933c8d2 26 * 提供统一的Preference util方法
TMBOY 45:2aa9f933c8d2 27 * <p>
TMBOY 45:2aa9f933c8d2 28 * Created by zhangyan42@baidu.com on 2017/5/24.
TMBOY 45:2aa9f933c8d2 29 */
TMBOY 45:2aa9f933c8d2 30 public class PreferenceUtil {
TMBOY 45:2aa9f933c8d2 31 private static final String APP_SHARD = "com.baidu.duer.dcs";
TMBOY 45:2aa9f933c8d2 32
TMBOY 45:2aa9f933c8d2 33 /**
TMBOY 45:2aa9f933c8d2 34 * 保存数据的方法，拿到保存数据的具体类型，然后根据类型调用不同的保存方法
TMBOY 45:2aa9f933c8d2 35 *
TMBOY 45:2aa9f933c8d2 36 * @param context 上下文
TMBOY 45:2aa9f933c8d2 37 * @param key key
TMBOY 45:2aa9f933c8d2 38 * @param object value
TMBOY 45:2aa9f933c8d2 39 */
TMBOY 45:2aa9f933c8d2 40 public static void put(Context context, String key, Object object) {
TMBOY 45:2aa9f933c8d2 41 put(context, APP_SHARD, key, object);
TMBOY 45:2aa9f933c8d2 42 }
TMBOY 45:2aa9f933c8d2 43
TMBOY 45:2aa9f933c8d2 44 public static void put(Context context, String spName, String key, Object object) {
TMBOY 45:2aa9f933c8d2 45 SharedPreferences sp = context.getSharedPreferences(spName,
TMBOY 45:2aa9f933c8d2 46 Context.MODE_PRIVATE);
TMBOY 45:2aa9f933c8d2 47 Editor editor = sp.edit();
TMBOY 45:2aa9f933c8d2 48
TMBOY 45:2aa9f933c8d2 49 if (object instanceof String) {
TMBOY 45:2aa9f933c8d2 50 editor.putString(key, (String) object);
TMBOY 45:2aa9f933c8d2 51 } else if (object instanceof Integer) {
TMBOY 45:2aa9f933c8d2 52 editor.putInt(key, (Integer) object);
TMBOY 45:2aa9f933c8d2 53 } else if (object instanceof Boolean) {
TMBOY 45:2aa9f933c8d2 54 editor.putBoolean(key, (Boolean) object);
TMBOY 45:2aa9f933c8d2 55 } else if (object instanceof Float) {
TMBOY 45:2aa9f933c8d2 56 editor.putFloat(key, (Float) object);
TMBOY 45:2aa9f933c8d2 57 } else if (object instanceof Long) {
TMBOY 45:2aa9f933c8d2 58 editor.putLong(key, (Long) object);
TMBOY 45:2aa9f933c8d2 59 } else {
TMBOY 45:2aa9f933c8d2 60 editor.putString(key, object.toString());
TMBOY 45:2aa9f933c8d2 61 }
TMBOY 45:2aa9f933c8d2 62 editSubmit(editor);
TMBOY 45:2aa9f933c8d2 63 }
TMBOY 45:2aa9f933c8d2 64
TMBOY 45:2aa9f933c8d2 65 private static void editSubmit(Editor editor) {
TMBOY 45:2aa9f933c8d2 66 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
TMBOY 45:2aa9f933c8d2 67 editor.apply();
TMBOY 45:2aa9f933c8d2 68 } else {
TMBOY 45:2aa9f933c8d2 69 editor.commit();
TMBOY 45:2aa9f933c8d2 70 }
TMBOY 45:2aa9f933c8d2 71 }
TMBOY 45:2aa9f933c8d2 72
TMBOY 45:2aa9f933c8d2 73 /**
TMBOY 45:2aa9f933c8d2 74 * 得到保存数据的方法，
TMBOY 45:2aa9f933c8d2 75 * 根据默认值得到保存的数据的具体类型，
TMBOY 45:2aa9f933c8d2 76 * 然后调用相对于的方法获取值
TMBOY 45:2aa9f933c8d2 77 *
TMBOY 45:2aa9f933c8d2 78 * @param context 上下文
TMBOY 45:2aa9f933c8d2 79 * @param key key
TMBOY 45:2aa9f933c8d2 80 * @param defaultObject default-value
TMBOY 45:2aa9f933c8d2 81 */
TMBOY 45:2aa9f933c8d2 82 public static Object get(Context context, String key, Object defaultObject) {
TMBOY 45:2aa9f933c8d2 83 return get(context, APP_SHARD, key, defaultObject);
TMBOY 45:2aa9f933c8d2 84 }
TMBOY 45:2aa9f933c8d2 85
TMBOY 45:2aa9f933c8d2 86 public static Object get(Context context, String spName, String key, Object defaultObject) {
TMBOY 45:2aa9f933c8d2 87 SharedPreferences sp = context.getSharedPreferences(spName,
TMBOY 45:2aa9f933c8d2 88 Context.MODE_PRIVATE);
TMBOY 45:2aa9f933c8d2 89
TMBOY 45:2aa9f933c8d2 90 if (defaultObject instanceof String) {
TMBOY 45:2aa9f933c8d2 91 return sp.getString(key, (String) defaultObject);
TMBOY 45:2aa9f933c8d2 92 } else if (defaultObject instanceof Integer) {
TMBOY 45:2aa9f933c8d2 93 return sp.getInt(key, (Integer) defaultObject);
TMBOY 45:2aa9f933c8d2 94 } else if (defaultObject instanceof Boolean) {
TMBOY 45:2aa9f933c8d2 95 return sp.getBoolean(key, (Boolean) defaultObject);
TMBOY 45:2aa9f933c8d2 96 } else if (defaultObject instanceof Float) {
TMBOY 45:2aa9f933c8d2 97 return sp.getFloat(key, (Float) defaultObject);
TMBOY 45:2aa9f933c8d2 98 } else if (defaultObject instanceof Long) {
TMBOY 45:2aa9f933c8d2 99 return sp.getLong(key, (Long) defaultObject);
TMBOY 45:2aa9f933c8d2 100 }
TMBOY 45:2aa9f933c8d2 101 return null;
TMBOY 45:2aa9f933c8d2 102 }
TMBOY 45:2aa9f933c8d2 103
TMBOY 45:2aa9f933c8d2 104 /**
TMBOY 45:2aa9f933c8d2 105 * 移除某个key值已经对应的值
TMBOY 45:2aa9f933c8d2 106 *
TMBOY 45:2aa9f933c8d2 107 * @param context 上下文
TMBOY 45:2aa9f933c8d2 108 * @param key key
TMBOY 45:2aa9f933c8d2 109 */
TMBOY 45:2aa9f933c8d2 110 public static void remove(Context context, String key) {
TMBOY 45:2aa9f933c8d2 111 remove(context, APP_SHARD, key);
TMBOY 45:2aa9f933c8d2 112 }
TMBOY 45:2aa9f933c8d2 113
TMBOY 45:2aa9f933c8d2 114 public static void remove(Context context, String spName, String key) {
TMBOY 45:2aa9f933c8d2 115 SharedPreferences sp = context.getSharedPreferences(spName,
TMBOY 45:2aa9f933c8d2 116 Context.MODE_PRIVATE);
TMBOY 45:2aa9f933c8d2 117 Editor editor = sp.edit();
TMBOY 45:2aa9f933c8d2 118 editor.remove(key);
TMBOY 45:2aa9f933c8d2 119 editSubmit(editor);
TMBOY 45:2aa9f933c8d2 120 }
TMBOY 45:2aa9f933c8d2 121
TMBOY 45:2aa9f933c8d2 122 /**
TMBOY 45:2aa9f933c8d2 123 * 清除所有数据
TMBOY 45:2aa9f933c8d2 124 *
TMBOY 45:2aa9f933c8d2 125 * @param context 上下文
TMBOY 45:2aa9f933c8d2 126 */
TMBOY 45:2aa9f933c8d2 127 public static void clear(Context context) {
TMBOY 45:2aa9f933c8d2 128 clear(context, APP_SHARD);
TMBOY 45:2aa9f933c8d2 129 }
TMBOY 45:2aa9f933c8d2 130
TMBOY 45:2aa9f933c8d2 131 public static void clear(Context context, String spName) {
TMBOY 45:2aa9f933c8d2 132 SharedPreferences sp = context.getSharedPreferences(spName, Context.MODE_PRIVATE);
TMBOY 45:2aa9f933c8d2 133 Editor editor = sp.edit();
TMBOY 45:2aa9f933c8d2 134 editor.clear();
TMBOY 45:2aa9f933c8d2 135 editSubmit(editor);
TMBOY 45:2aa9f933c8d2 136 }
TMBOY 45:2aa9f933c8d2 137
TMBOY 45:2aa9f933c8d2 138 /**
TMBOY 45:2aa9f933c8d2 139 * 查询某个key是否已经存在
TMBOY 45:2aa9f933c8d2 140 *
TMBOY 45:2aa9f933c8d2 141 * @param context 上下文
TMBOY 45:2aa9f933c8d2 142 * @param key key
TMBOY 45:2aa9f933c8d2 143 */
TMBOY 45:2aa9f933c8d2 144 public static boolean contains(Context context, String key) {
TMBOY 45:2aa9f933c8d2 145 return contains(context, APP_SHARD, key);
TMBOY 45:2aa9f933c8d2 146 }
TMBOY 45:2aa9f933c8d2 147
TMBOY 45:2aa9f933c8d2 148 public static boolean contains(Context context, String spName, String key) {
TMBOY 45:2aa9f933c8d2 149 SharedPreferences sp = context.getSharedPreferences(spName, Context.MODE_PRIVATE);
TMBOY 45:2aa9f933c8d2 150 return sp.contains(key);
TMBOY 45:2aa9f933c8d2 151 }
TMBOY 45:2aa9f933c8d2 152
TMBOY 45:2aa9f933c8d2 153 /**
TMBOY 45:2aa9f933c8d2 154 * 返回所有的键值对
TMBOY 45:2aa9f933c8d2 155 *
TMBOY 45:2aa9f933c8d2 156 * @param context 上下文
TMBOY 45:2aa9f933c8d2 157 */
TMBOY 45:2aa9f933c8d2 158 public static Map<String, ?> getAll(Context context) {
TMBOY 45:2aa9f933c8d2 159 return getAll(context, APP_SHARD);
TMBOY 45:2aa9f933c8d2 160 }
TMBOY 45:2aa9f933c8d2 161
TMBOY 45:2aa9f933c8d2 162 public static Map<String, ?> getAll(Context context, String spName) {
TMBOY 45:2aa9f933c8d2 163 SharedPreferences sp = context.getSharedPreferences(spName,
TMBOY 45:2aa9f933c8d2 164 Context.MODE_PRIVATE);
TMBOY 45:2aa9f933c8d2 165 return sp.getAll();
TMBOY 45:2aa9f933c8d2 166 }
TMBOY 45:2aa9f933c8d2 167 }