/*
Copyright 2012-2013, Polyvi Inc. (http://polyvi.github.io/openxface)
This program is distributed under the terms of the GNU General Public License.
This file is part of xFace.
xFace is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
xFace is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with xFace. If not, see <http://www.gnu.org/licenses/>.
*/
package com.polyvi.xface.util;
import java.io.IOException;
import java.util.HashMap;
import org.xmlpull.v1.XmlPullParserException;
import android.content.Context;
import android.content.res.XmlResourceParser;
/**
* 该类主要是从xml文件中读取所有的字符串常量保存下来
*/
public class XStrings {
public static String EXIT_MESSAGE_TITLE = "exit_message_title";
public static String EXIT_MESSAGE_CONTENT = "exit_message_content";
public static String CONFIRM = "confirm";
public static String APP_CONFIG_ERROR = "app_config_error";
public static String ENTRY_NOT_FOUND = "entry_not_found";
private static String TAG_RESOURCES = "resources";
private static String XML_NAME = "xface_string";
private static String XML_DIRECTORY = "xml";
private static XStrings instance = null;
private HashMap<String, String> mStringPreferences;
public static XStrings getInstance() {
if (null == instance) {
instance = new XStrings();
}
return instance;
}
/**
* 读取平台定义的字符串常量存储下来
*
* @param context
*/
public void loadPlatformStrings(Context context) {
mStringPreferences = new HashMap<String, String>();
try {
int id = context.getResources().getIdentifier(XML_NAME,
XML_DIRECTORY, context.getPackageName());
XmlResourceParser xml = context.getResources().getXml(id);
int eventType = -1;
String key = null;
while (eventType != XmlResourceParser.END_DOCUMENT
&& !TAG_RESOURCES.equals(xml.getName())) {
eventType = xml.next();
}
while (isLoadFinished(xml, eventType)) {
if (eventType == XmlResourceParser.TEXT) {
String text = xml.getText();
mStringPreferences.put(key, text);
}
if (eventType == XmlResourceParser.START_TAG) {
if (0 != xml.getAttributeCount()) {
key = xml.getAttributeValue(0);
}
}
eventType = xml.next();
}
} catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 判断是否到达xml文件的结尾或者遇到resources的结束标签
*
* @param xml
* @param eventType
* @return
*/
private boolean isLoadFinished(XmlResourceParser xml, int eventType) {
return eventType != XmlResourceParser.END_DOCUMENT
&& !(eventType == XmlResourceParser.END_TAG && TAG_RESOURCES
.equals(xml.getName()));
}
/**
* 获取字符村常量的值
*
* @param key关键字
* @return 字符串常量的值
*/
public String getString(String key) {
return mStringPreferences.get(key);
}
}