Android系统本身自带有有将汉字转化为英文拼音的类和方法。具体的类就是HanziToPinyin.java。Android系统自身实现的通讯录中就使用了HanziToPinyin.java对中文通讯录做分组整理。通过HanziToPinyin.java可以将汉字转化为拼音输出，在一些应用中非常必须，比如联系人的分组，假设一个人通讯录中存有若干姓张（ZHANG）的联系人，那么所有姓张的联系人按理都应该分组在“Z”组下。又比如微信、QQ等等此类社交类APP，凡是涉及到联系人、好友分组排序的应用场景，则均需要将汉字转化为拼音然后依据首字母排序归类。
HanziToPinyin.java不是一个公开的类，只是谷歌官方内部在实现Android通讯录中私有使用的一个类，我们不能够直接像使用普通Android SDK API一样使用，但这没关系，我们完全可以将这个类文件拷贝出来，放到我们自己的项目中，直接使用。
HanziToPinyin.java的代码文件，谷歌官方的通讯录APP下：
packages/providers/ContactsProvider /src/com/android/providers/contacts/HanziToPinyin.java
网上也有这个HanziToPinyin.java类文件的项目地址。但是，直接使用这个 类不能正常工作，错误原因是：
"There is no Chinese collator, HanziToPinyin is disabled"
发生这一错误的代码块是在HanziToPinyin.java的方法：
public static HanziToPinyin getInstance();
具体原因是这个方法在一些非原生定制的Android系统中，对中文Locale的定义规则不同，导致原代码文件中的locale[i].equals(Locale.CHINA)返回false，不能识别，致使以后的代码全部失去功效。
对此问题的修复（解决方案）
我改进了判断条件，增加一些代码：
final Locale chinaAddition = new Locale("zh");
将此chinaAddition作为辅助条件也加入到条件判断中，
if ( locale[i].equals(Locale.CHINA) || locale[i].equals(chinaAddition) ){
…
}下面是我改进后的getInstance()方法全部代码：
public static HanziToPinyin getInstance() {
synchronized (HanziToPinyin.class) {
if (sInstance != null) {
return sInstance;
}
// Check if zh_CN collation data is available
final Locale locale[] = Collator.getAvailableLocales();
// 增加的代码，增强。
final Locale chinaAddition = new Locale("zh");
for (int i = 0; i < locale.length; i++) {
if (locale[i].equals(Locale.CHINA)
|| locale[i].equals(chinaAddition)) {
// Do self validation just once.
if (DEBUG) {
Log.d(TAG, "Self validation. Result: "
+ doSelfValidation());
}
sInstance = new HanziToPinyin(true);
return sInstance;
}
}
Log.w(TAG,
"There is no Chinese collator, HanziToPinyin is disabled");
sInstance = new HanziToPinyin(false);
return sInstance;
}
}经由改进增强，HanziToPinyin.java的全部源代码如下（代码可以复制到自己的项目中直接使用）：
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package zhangphil.hanyupinyin;
import android.text.TextUtils;
import android.util.Log;
import java.text.Collator;
import java.util.ArrayList;
import java.util.Locale;
/**
* An object to convert Chinese character to its corresponding pinyin string.
* For characters with multiple possible pinyin string, only one is selected
* according to collator. Polyphone is not supported in this implementation.
* This class is implemented to achieve the best runtime performance and minimum
* runtime resources with tolerable sacrifice of accuracy. This implementation
* highly depends on zh_CN ICU collation data and must be always synchronized
* with ICU.
*
* Currently this file is aligned to zh.txt in ICU 4.6 鏉ヨ嚜android4.2婧愮爜
*/
public class HanziToPinyin {
private static final String TAG = "HanziToPinyin";
// Turn on this flag when we want to check internal data structure.
private static final boolean DEBUG = false;
/**
* Unihans array.
*
* Each unihans is the first one within same pinyin when collator is zh_CN.
*/
public static final char[] UNIHANS = { '\u963f', '\u54ce', '\u5b89',
'\u80ae', '\u51f9', '\u516b', '\u6300', '\u6273', '\u90a6',
'\u52f9', '\u9642', '\u5954', '\u4f3b', '\u5c44', '\u8fb9',
'\u706c', '\u618b', '\u6c43', '\u51ab', '\u7676', '\u5cec',
'\u5693', '\u5072', '\u53c2', '\u4ed3', '\u64a1', '\u518a',
'\u5d7e', '\u66fd', '\u66fe', '\u5c64', '\u53c9', '\u8286',
'\u8fbf', '\u4f25', '\u6284', '\u8f66', '\u62bb', '\u6c88',
'\u6c89', '\u9637', '\u5403', '\u5145', '\u62bd', '\u51fa',
'\u6b3b', '\u63e3', '\u5ddb', '\u5205', '\u5439', '\u65fe',
'\u9034', '\u5472', '\u5306', '\u51d1', '\u7c97', '\u6c46',
'\u5d14', '\u90a8', '\u6413', '\u5491', '\u5446', '\u4e39',
'\u5f53', '\u5200', '\u561a', '\u6265', '\u706f', '\u6c10',
'\u55f2', '\u7538', '\u5201', '\u7239', '\u4e01', '\u4e1f',
'\u4e1c', '\u543a', '\u53be', '\u8011', '\u8968', '\u5428',
'\u591a', '\u59b8', '\u8bf6', '\u5940', '\u97a5', '\u513f',
'\u53d1', '\u5e06', '\u531a', '\u98de', '\u5206', '\u4e30',
'\u8985', '\u4ecf', '\u7d11', '\u4f15', '\u65ee', '\u4f85',
'\u7518', '\u5188', '\u768b', '\u6208', '\u7ed9', '\u6839',
'\u522f', '\u5de5', '\u52fe', '\u4f30', '\u74dc', '\u4e56',
'\u5173', '\u5149', '\u5f52', '\u4e28', '\u5459', '\u54c8',
'\u548d', '\u4f44', '\u592f', '\u8320', '\u8bc3', '\u9ed2',
'\u62eb', '\u4ea8', '\u5677', '\u53ff', '\u9f41', '\u4e6f',
'\u82b1', '\u6000', '\u72bf', '\u5ddf', '\u7070', '\u660f',
'\u5419', '\u4e0c', '\u52a0', '\u620b', '\u6c5f', '\u827d',
'\u9636', '\u5dfe', '\u5755', '\u5182', '\u4e29', '\u51e5',
'\u59e2', '\u5658', '\u519b', '\u5494', '\u5f00', '\u520a',
'\u5ffc', '\u5c3b', '\u533c', '\u808e', '\u52a5', '\u7a7a',
'\u62a0', '\u625d', '\u5938', '\u84af', '\u5bbd', '\u5321',
'\u4e8f', '\u5764', '\u6269', '\u5783', '\u6765', '\u5170',
'\u5577', '\u635e', '\u808b', '\u52d2', '\u5d1a', '\u5215',
'\u4fe9', '\u5941', '\u826f', '\u64a9', '\u5217', '\u62ce',
'\u5222', '\u6e9c', '\u56d6', '\u9f99', '\u779c', '\u565c',
'\u5a08', '\u7567', '\u62a1', '\u7f57', '\u5463', '\u5988',
'\u57cb', '\u5ada', '\u7264', '\u732b', '\u4e48', '\u5445',
'\u95e8', '\u753f', '\u54aa', '\u5b80', '\u55b5', '\u4e5c',
'\u6c11', '\u540d', '\u8c2c', '\u6478', '\u54de', '\u6bea',
'\u55ef', '\u62cf', '\u8149', '\u56e1', '\u56d4', '\u5b6c',
'\u7592', '\u5a1e', '\u6041', '\u80fd', '\u59ae', '\u62c8',
'\u5b22', '\u9e1f', '\u634f', '\u56dc', '\u5b81', '\u599e',
'\u519c', '\u7fba', '\u5974', '\u597b', '\u759f', '\u9ec1',
'\u90cd', '\u5594', '\u8bb4', '\u5991', '\u62cd', '\u7705',
'\u4e53', '\u629b', '\u5478', '\u55b7', '\u5309', '\u4e15',
'\u56e8', '\u527d', '\u6c15', '\u59d8', '\u4e52', '\u948b',
'\u5256', '\u4ec6', '\u4e03', '\u6390', '\u5343', '\u545b',
'\u6084', '\u767f', '\u4eb2', '\u72c5', '\u828e', '\u4e18',
'\u533a', '\u5cd1', '\u7f3a', '\u590b', '\u5465', '\u7a63',
'\u5a06', '\u60f9', '\u4eba', '\u6254', '\u65e5', '\u8338',
'\u53b9', '\u909a', '\u633c', '\u5827', '\u5a51', '\u77a4',
'\u637c', '\u4ee8', '\u6be2', '\u4e09', '\u6852', '\u63bb',
'\u95aa', '\u68ee', '\u50e7', '\u6740', '\u7b5b', '\u5c71',
'\u4f24', '\u5f30', '\u5962', '\u7533', '\u8398', '\u6552',
'\u5347', '\u5c38', '\u53ce', '\u4e66', '\u5237', '\u8870',
'\u95e9', '\u53cc', '\u8c01', '\u542e', '\u8bf4', '\u53b6',
'\u5fea', '\u635c', '\u82cf', '\u72fb', '\u590a', '\u5b59',
'\u5506', '\u4ed6', '\u56fc', '\u574d', '\u6c64', '\u5932',
'\u5fd1', '\u71a5', '\u5254', '\u5929', '\u65eb', '\u5e16',
'\u5385', '\u56f2', '\u5077', '\u51f8', '\u6e4d', '\u63a8',
'\u541e', '\u4e47', '\u7a75', '\u6b6a', '\u5f2f', '\u5c23',
'\u5371', '\u6637', '\u7fc1', '\u631d', '\u4e4c', '\u5915',
'\u8672', '\u4eda', '\u4e61', '\u7071', '\u4e9b', '\u5fc3',
'\u661f', '\u51f6', '\u4f11', '\u5401', '\u5405', '\u524a',
'\u5743', '\u4e2b', '\u6079', '\u592e', '\u5e7a', '\u503b',
'\u4e00', '\u56d9', '\u5e94', '\u54df', '\u4f63', '\u4f18',
'\u625c', '\u56e6', '\u66f0', '\u6655', '\u7b60', '\u7b7c',
'\u5e00', '\u707d', '\u5142', '\u5328', '\u50ae', '\u5219',
'\u8d3c', '\u600e', '\u5897', '\u624e', '\u635a', '\u6cbe',
'\u5f20', '\u957f', '\u9577', '\u4f4b', '\u8707', '\u8d1e',
'\u4e89', '\u4e4b', '\u5cd9', '\u5ea2', '\u4e2d', '\u5dde',
'\u6731', '\u6293', '\u62fd', '\u4e13', '\u5986', '\u96b9',
'\u5b92', '\u5353', '\u4e72', '\u5b97', '\u90b9', '\u79df',
'\u94bb', '\u539c', '\u5c0a', '\u6628', '\u5159', '\u9fc3',
'\u9fc4', };
/**
* Pinyin array.
*
* Each pinyin is corresponding to unihans of same offset in the unihans
* array.
*/
public static final byte[][] PINYINS = { { 65, 0, 0, 0, 0, 0 },
{ 65, 73, 0, 0, 0, 0 }, { 65, 78, 0, 0, 0, 0 },
{ 65, 78, 71, 0, 0, 0 }, { 65, 79, 0, 0, 0, 0 },
{ 66, 65, 0, 0, 0, 0 }, { 66, 65, 73, 0, 0, 0 },
{ 66, 65, 78, 0, 0, 0 }, { 66, 65, 78, 71, 0, 0 },
{ 66, 65, 79, 0, 0, 0 }, { 66, 69, 73, 0, 0, 0 },
{ 66, 69, 78, 0, 0, 0 }, { 66, 69, 78, 71, 0, 0 },
{ 66, 73, 0, 0, 0, 0 }, { 66, 73, 65, 78, 0, 0 },
{ 66, 73, 65, 79, 0, 0 }, { 66, 73, 69, 0, 0, 0 },
{ 66, 73, 78, 0, 0, 0 }, { 66, 73, 78, 71, 0, 0 },
{ 66, 79, 0, 0, 0, 0 }, { 66, 85, 0, 0, 0, 0 },
{ 67, 65, 0, 0, 0, 0 }, { 67, 65, 73, 0, 0, 0 },
{ 67, 65, 78, 0, 0, 0 }, { 67, 65, 78, 71, 0, 0 },
{ 67, 65, 79, 0, 0, 0 }, { 67, 69, 0, 0, 0, 0 },
{ 67, 69, 78, 0, 0, 0 }, { 67, 69, 78, 71, 0, 0 },
{ 90, 69, 78, 71, 0, 0 }, { 67, 69, 78, 71, 0, 0 },
{ 67, 72, 65, 0, 0, 0 }, { 67, 72, 65, 73, 0, 0 },
{ 67, 72, 65, 78, 0, 0 }, { 67, 72, 65, 78, 71, 0 },
{ 67, 72, 65, 79, 0, 0 }, { 67, 72, 69, 0, 0, 0 },
{ 67, 72, 69, 78, 0, 0 }, { 83, 72, 69, 78, 0, 0 },
{ 67, 72, 69, 78, 0, 0 }, { 67, 72, 69, 78, 71, 0 },
{ 67, 72, 73, 0, 0, 0 }, { 67, 72, 79, 78, 71, 0 },
{ 67, 72, 79, 85, 0, 0 }, { 67, 72, 85, 0, 0, 0 },
{ 67, 72, 85, 65, 0, 0 }, { 67, 72, 85, 65, 73, 0 },
{ 67, 72, 85, 65, 78, 0 }, { 67, 72, 85, 65, 78, 71 },
{ 67, 72, 85, 73, 0, 0 }, { 67, 72, 85, 78, 0, 0 },
{ 67, 72, 85, 79, 0, 0 }, { 67, 73, 0, 0, 0, 0 },
{ 67, 79, 78, 71, 0, 0 }, { 67, 79, 85, 0, 0, 0 },
{ 67, 85, 0, 0, 0, 0 }, { 67, 85, 65, 78, 0, 0 },
{ 67, 85, 73, 0, 0, 0 }, { 67, 85, 78, 0, 0, 0 },
{ 67, 85, 79, 0, 0, 0 }, { 68, 65, 0, 0, 0, 0 },
{ 68, 65, 73, 0, 0, 0 }, { 68, 65, 78, 0, 0, 0 },
{ 68, 65, 78, 71, 0, 0 }, { 68, 65, 79, 0, 0, 0 },
{ 68, 69, 0, 0, 0, 0 }, { 68, 69, 78, 0, 0, 0 },
{ 68, 69, 78, 71, 0, 0 }, { 68, 73, 0, 0, 0, 0 },
{ 68, 73, 65, 0, 0, 0 }, { 68, 73, 65, 78, 0, 0 },
{ 68, 73, 65, 79, 0, 0 }, { 68, 73, 69, 0, 0, 0 },
{ 68, 73, 78, 71, 0, 0 }, { 68, 73, 85, 0, 0, 0 },
{ 68, 79, 78, 71, 0, 0 }, { 68, 79, 85, 0, 0, 0 },
{ 68, 85, 0, 0, 0, 0 }, { 68, 85, 65, 78, 0, 0 },
{ 68, 85, 73, 0, 0, 0 }, { 68, 85, 78, 0, 0, 0 },
{ 68, 85, 79, 0, 0, 0 }, { 69, 0, 0, 0, 0, 0 },
{ 69, 73, 0, 0, 0, 0 }, { 69, 78, 0, 0, 0, 0 },
{ 69, 78, 71, 0, 0, 0 }, { 69, 82, 0, 0, 0, 0 },
{ 70, 65, 0, 0, 0, 0 }, { 70, 65, 78, 0, 0, 0 },
{ 70, 65, 78, 71, 0, 0 }, { 70, 69, 73, 0, 0, 0 },
{ 70, 69, 78, 0, 0, 0 }, { 70, 69, 78, 71, 0, 0 },
{ 70, 73, 65, 79, 0, 0 }, { 70, 79, 0, 0, 0, 0 },
{ 70, 79, 85, 0, 0, 0 }, { 70, 85, 0, 0, 0, 0 },
{ 71, 65, 0, 0, 0, 0 }, { 71, 65, 73, 0, 0, 0 },
{ 71, 65, 78, 0, 0, 0 }, { 71, 65, 78, 71, 0, 0 },
{ 71, 65, 79, 0, 0, 0 }, { 71, 69, 0, 0, 0, 0 },
{ 71, 69, 73, 0, 0, 0 }, { 71, 69, 78, 0, 0, 0 },
{ 71, 69, 78, 71, 0, 0 }, { 71, 79, 78, 71, 0, 0 },
{ 71, 79, 85, 0, 0, 0 }, { 71, 85, 0, 0, 0, 0 },
{ 71, 85, 65, 0, 0, 0 }, { 71, 85, 65, 73, 0, 0 },
{ 71, 85, 65, 78, 0, 0 }, { 71, 85, 65, 78, 71, 0 },
{ 71, 85, 73, 0, 0, 0 }, { 71, 85, 78, 0, 0, 0 },
{ 71, 85, 79, 0, 0, 0 }, { 72, 65, 0, 0, 0, 0 },
{ 72, 65, 73, 0, 0, 0 }, { 72, 65, 78, 0, 0, 0 },
{ 72, 65, 78, 71, 0, 0 }, { 72, 65, 79, 0, 0, 0 },
{ 72, 69, 0, 0, 0, 0 }, { 72, 69, 73, 0, 0, 0 },
{ 72, 69, 78, 0, 0, 0 }, { 72, 69, 78, 71, 0, 0 },
{ 72, 77, 0, 0, 0, 0 }, { 72, 79, 78, 71, 0, 0 },
{ 72, 79, 85, 0, 0, 0 }, { 72, 85, 0, 0, 0, 0 },
{ 72, 85, 65, 0, 0, 0 }, { 72, 85, 65, 73, 0, 0 },
{ 72, 85, 65, 78, 0, 0 }, { 72, 85, 65, 78, 71, 0 },
{ 72, 85, 73, 0, 0, 0 }, { 72, 85, 78, 0, 0, 0 },
{ 72, 85, 79, 0, 0, 0 }, { 74, 73, 0, 0, 0, 0 },
{ 74, 73, 65, 0, 0, 0 }, { 74, 73, 65, 78, 0, 0 },
{ 74, 73, 65, 78, 71, 0 }, { 74, 73, 65, 79, 0, 0 },
{ 74, 73, 69, 0, 0, 0 }, { 74, 73, 78, 0, 0, 0 },
{ 74, 73, 78, 71, 0, 0 }, { 74, 73, 79, 78, 71, 0 },
{ 74, 73, 85, 0, 0, 0 }, { 74, 85, 0, 0, 0, 0 },
{ 74, 85, 65, 78, 0, 0 }, { 74, 85, 69, 0, 0, 0 },
{ 74, 85, 78, 0, 0, 0 }, { 75, 65, 0, 0, 0, 0 },
{ 75, 65, 73, 0, 0, 0 }, { 75, 65, 78, 0, 0, 0 },
{ 75, 65, 78, 71, 0, 0 }, { 75, 65, 79, 0, 0, 0 },
{ 75, 69, 0, 0, 0, 0 }, { 75, 69, 78, 0, 0, 0 },
{ 75, 69, 78, 71, 0, 0 }, { 75, 79, 78, 71, 0, 0 },
{ 75, 79, 85, 0, 0, 0 }, { 75, 85, 0, 0, 0, 0 },
{ 75, 85, 65, 0, 0, 0 }, { 75, 85, 65, 73, 0, 0 },
{ 75, 85, 65, 78, 0, 0 }, { 75, 85, 65, 78, 71, 0 },
{ 75, 85, 73, 0, 0, 0 }, { 75, 85, 78, 0, 0, 0 },
{ 75, 85, 79, 0, 0, 0 }, { 76, 65, 0, 0, 0, 0 },
{ 76, 65, 73, 0, 0, 0 }, { 76, 65, 78, 0, 0, 0 },
{ 76, 65, 78, 71, 0, 0 }, { 76, 65, 79, 0, 0, 0 },
{ 76, 69, 0, 0, 0, 0 }, { 76, 69, 73, 0, 0, 0 },
{ 76, 69, 78, 71, 0, 0 }, { 76, 73, 0, 0, 0, 0 },
{ 76, 73, 65, 0, 0, 0 }, { 76, 73, 65, 78, 0, 0 },
{ 76, 73, 65, 78, 71, 0 }, { 76, 73, 65, 79, 0, 0 },
{ 76, 73, 69, 0, 0, 0 }, { 76, 73, 78, 0, 0, 0 },
{ 76, 73, 78, 71, 0, 0 }, { 76, 73, 85, 0, 0, 0 },
{ 76, 79, 0, 0, 0, 0 }, { 76, 79, 78, 71, 0, 0 },
{ 76, 79, 85, 0, 0, 0 }, { 76, 85, 0, 0, 0, 0 },
{ 76, 85, 65, 78, 0, 0 }, { 76, 85, 69, 0, 0, 0 },
{ 76, 85, 78, 0, 0, 0 }, { 76, 85, 79, 0, 0, 0 },
{ 77, 0, 0, 0, 0, 0 }, { 77, 65, 0, 0, 0, 0 },
{ 77, 65, 73, 0, 0, 0 }, { 77, 65, 78, 0, 0, 0 },
{ 77, 65, 78, 71, 0, 0 }, { 77, 65, 79, 0, 0, 0 },
{ 77, 69, 0, 0, 0, 0 }, { 77, 69, 73, 0, 0, 0 },
{ 77, 69, 78, 0, 0, 0 }, { 77, 69, 78, 71, 0, 0 },
{ 77, 73, 0, 0, 0, 0 }, { 77, 73, 65, 78, 0, 0 },
{ 77, 73, 65, 79, 0, 0 }, { 77, 73, 69, 0, 0, 0 },
{ 77, 73, 78, 0, 0, 0 }, { 77, 73, 78, 71, 0, 0 },
{ 77, 73, 85, 0, 0, 0 }, { 77, 79, 0, 0, 0, 0 },
{ 77, 79, 85, 0, 0, 0 }, { 77, 85, 0, 0, 0, 0 },
{ 78, 0, 0, 0, 0, 0 }, { 78, 65, 0, 0, 0, 0 },
{ 78, 65, 73, 0, 0, 0 }, { 78, 65, 78, 0, 0, 0 },
{ 78, 65, 78, 71, 0, 0 }, { 78, 65, 79, 0, 0, 0 },
{ 78, 69, 0, 0, 0, 0 }, { 78, 69, 73, 0, 0, 0 },
{ 78, 69, 78, 0, 0, 0 }, { 78, 69, 78, 71, 0, 0 },
{ 78, 73, 0, 0, 0, 0 }, { 78, 73, 65, 78, 0, 0 },
{ 78, 73, 65, 78, 71, 0 }, { 78, 73, 65, 79, 0, 0 },
{ 78, 73, 69, 0, 0, 0 }, { 78, 73, 78, 0, 0, 0 },
{ 78, 73, 78, 71, 0, 0 }, { 78, 73, 85, 0, 0, 0 },
{ 78, 79, 78, 71, 0, 0 }, { 78, 79, 85, 0, 0, 0 },
{ 78, 85, 0, 0, 0, 0 }, { 78, 85, 65, 78, 0, 0 },
{ 78, 85, 69, 0, 0, 0 }, { 78, 85, 78, 0, 0, 0 },
{ 78, 85, 79, 0, 0, 0 }, { 79, 0, 0, 0, 0, 0 },
{ 79, 85, 0, 0, 0, 0 }, { 80, 65, 0, 0, 0, 0 },
{ 80, 65, 73, 0, 0, 0 }, { 80, 65, 78, 0, 0, 0 },
{ 80, 65, 78, 71, 0, 0 }, { 80, 65, 79, 0, 0, 0 },
{ 80, 69, 73, 0, 0, 0 }, { 80, 69, 78, 0, 0, 0 },
{ 80, 69, 78, 71, 0, 0 }, { 80, 73, 0, 0, 0, 0 },
{ 80, 73, 65, 78, 0, 0 }, { 80, 73, 65, 79, 0, 0 },
{ 80, 73, 69, 0, 0, 0 }, { 80, 73, 78, 0, 0, 0 },
{ 80, 73, 78, 71, 0, 0 }, { 80, 79, 0, 0, 0, 0 },
{ 80, 79, 85, 0, 0, 0 }, { 80, 85, 0, 0, 0, 0 },
{ 81, 73, 0, 0, 0, 0 }, { 81, 73, 65, 0, 0, 0 },
{ 81, 73, 65, 78, 0, 0 }, { 81, 73, 65, 78, 71, 0 },
{ 81, 73, 65, 79, 0, 0 }, { 81, 73, 69, 0, 0, 0 },
{ 81, 73, 78, 0, 0, 0 }, { 81, 73, 78, 71, 0, 0 },
{ 81, 73, 79, 78, 71, 0 }, { 81, 73, 85, 0, 0, 0 },
{ 81, 85, 0, 0, 0, 0 }, { 81, 85, 65, 78, 0, 0 },
{ 81, 85, 69, 0, 0, 0 }, { 81, 85, 78, 0, 0, 0 },
{ 82, 65, 78, 0, 0, 0 }, { 82, 65, 78, 71, 0, 0 },
{ 82, 65, 79, 0, 0, 0 }, { 82, 69, 0, 0, 0, 0 },
{ 82, 69, 78, 0, 0, 0 }, { 82, 69, 78, 71, 0, 0 },
{ 82, 73, 0, 0, 0, 0 }, { 82, 79, 78, 71, 0, 0 },
{ 82, 79, 85, 0, 0, 0 }, { 82, 85, 0, 0, 0, 0 },
{ 82, 85, 65, 0, 0, 0 }, { 82, 85, 65, 78, 0, 0 },
{ 82, 85, 73, 0, 0, 0 }, { 82, 85, 78, 0, 0, 0 },
{ 82, 85, 79, 0, 0, 0 }, { 83, 65, 0, 0, 0, 0 },
{ 83, 65, 73, 0, 0, 0 }, { 83, 65, 78, 0, 0, 0 },
{ 83, 65, 78, 71, 0, 0 }, { 83, 65, 79, 0, 0, 0 },
{ 83, 69, 0, 0, 0, 0 }, { 83, 69, 78, 0, 0, 0 },
{ 83, 69, 78, 71, 0, 0 }, { 83, 72, 65, 0, 0, 0 },
{ 83, 72, 65, 73, 0, 0 }, { 83, 72, 65, 78, 0, 0 },
{ 83, 72, 65, 78, 71, 0 }, { 83, 72, 65, 79, 0, 0 },
{ 83, 72, 69, 0, 0, 0 }, { 83, 72, 69, 78, 0, 0 },
{ 88, 73, 78, 0, 0, 0 }, { 83, 72, 69, 78, 0, 0 },
{ 83, 72, 69, 78, 71, 0 }, { 83, 72, 73, 0, 0, 0 },
{ 83, 72, 79, 85, 0, 0 }, { 83, 72, 85, 0, 0, 0 },
{ 83, 72, 85, 65, 0, 0 }, { 83, 72, 85, 65, 73, 0 },
{ 83, 72, 85, 65, 78, 0 }, { 83, 72, 85, 65, 78, 71 },
{ 83, 72, 85, 73, 0, 0 }, { 83, 72, 85, 78, 0, 0 },
{ 83, 72, 85, 79, 0, 0 }, { 83, 73, 0, 0, 0, 0 },
{ 83, 79, 78, 71, 0, 0 }, { 83, 79, 85, 0, 0, 0 },
{ 83, 85, 0, 0, 0, 0 }, { 83, 85, 65, 78, 0, 0 },
{ 83, 85, 73, 0, 0, 0 }, { 83, 85, 78, 0, 0, 0 },
{ 83, 85, 79, 0, 0, 0 }, { 84, 65, 0, 0, 0, 0 },
{ 84, 65, 73, 0, 0, 0 }, { 84, 65, 78, 0, 0, 0 },
{ 84, 65, 78, 71, 0, 0 }, { 84, 65, 79, 0, 0, 0 },
{ 84, 69, 0, 0, 0, 0 }, { 84, 69, 78, 71, 0, 0 },
{ 84, 73, 0, 0, 0, 0 }, { 84, 73, 65, 78, 0, 0 },
{ 84, 73, 65, 79, 0, 0 }, { 84, 73, 69, 0, 0, 0 },
{ 84, 73, 78, 71, 0, 0 }, { 84, 79, 78, 71, 0, 0 },
{ 84, 79, 85, 0, 0, 0 }, { 84, 85, 0, 0, 0, 0 },
{ 84, 85, 65, 78, 0, 0 }, { 84, 85, 73, 0, 0, 0 },
{ 84, 85, 78, 0, 0, 0 }, { 84, 85, 79, 0, 0, 0 },
{ 87, 65, 0, 0, 0, 0 }, { 87, 65, 73, 0, 0, 0 },
{ 87, 65, 78, 0, 0, 0 }, { 87, 65, 78, 71, 0, 0 },
{ 87, 69, 73, 0, 0, 0 }, { 87, 69, 78, 0, 0, 0 },
{ 87, 69, 78, 71, 0, 0 }, { 87, 79, 0, 0, 0, 0 },
{ 87, 85, 0, 0, 0, 0 }, { 88, 73, 0, 0, 0, 0 },
{ 88, 73, 65, 0, 0, 0 }, { 88, 73, 65, 78, 0, 0 },
{ 88, 73, 65, 78, 71, 0 }, { 88, 73, 65, 79, 0, 0 },
{ 88, 73, 69, 0, 0, 0 }, { 88, 73, 78, 0, 0, 0 },
{ 88, 73, 78, 71, 0, 0 }, { 88, 73, 79, 78, 71, 0 },
{ 88, 73, 85, 0, 0, 0 }, { 88, 85, 0, 0, 0, 0 },
{ 88, 85, 65, 78, 0, 0 }, { 88, 85, 69, 0, 0, 0 },
{ 88, 85, 78, 0, 0, 0 }, { 89, 65, 0, 0, 0, 0 },
{ 89, 65, 78, 0, 0, 0 }, { 89, 65, 78, 71, 0, 0 },
{ 89, 65, 79, 0, 0, 0 }, { 89, 69, 0, 0, 0, 0 },
{ 89, 73, 0, 0, 0, 0 }, { 89, 73, 78, 0, 0, 0 },
{ 89, 73, 78, 71, 0, 0 }, { 89, 79, 0, 0, 0, 0 },
{ 89, 79, 78, 71, 0, 0 }, { 89, 79, 85, 0, 0, 0 },
{ 89, 85, 0, 0, 0, 0 }, { 89, 85, 65, 78, 0, 0 },
{ 89, 85, 69, 0, 0, 0 }, { 89, 85, 78, 0, 0, 0 },
{ 74, 85, 78, 0, 0, 0 }, { 89, 85, 78, 0, 0, 0 },
{ 90, 65, 0, 0, 0, 0 }, { 90, 65, 73, 0, 0, 0 },
{ 90, 65, 78, 0, 0, 0 }, { 90, 65, 78, 71, 0, 0 },
{ 90, 65, 79, 0, 0, 0 }, { 90, 69, 0, 0, 0, 0 },
{ 90, 69, 73, 0, 0, 0 }, { 90, 69, 78, 0, 0, 0 },
{ 90, 69, 78, 71, 0, 0 }, { 90, 72, 65, 0, 0, 0 },
{ 90, 72, 65, 73, 0, 0 }, { 90, 72, 65, 78, 0, 0 },
{ 90, 72, 65, 78, 71, 0 }, { 67, 72, 65, 78, 71, 0 },
{ 90, 72, 65, 78, 71, 0 }, { 90, 72, 65, 79, 0, 0 },
{ 90, 72, 69, 0, 0, 0 }, { 90, 72, 69, 78, 0, 0 },
{ 90, 72, 69, 78, 71, 0 }, { 90, 72, 73, 0, 0, 0 },
{ 83, 72, 73, 0, 0, 0 }, { 90, 72, 73, 0, 0, 0 },
{ 90, 72, 79, 78, 71, 0 }, { 90, 72, 79, 85, 0, 0 },
{ 90, 72, 85, 0, 0, 0 }, { 90, 72, 85, 65, 0, 0 },
{ 90, 72, 85, 65, 73, 0 }, { 90, 72, 85, 65, 78, 0 },
{ 90, 72, 85, 65, 78, 71 }, { 90, 72, 85, 73, 0, 0 },
{ 90, 72, 85, 78, 0, 0 }, { 90, 72, 85, 79, 0, 0 },
{ 90, 73, 0, 0, 0, 0 }, { 90, 79, 78, 71, 0, 0 },
{ 90, 79, 85, 0, 0, 0 }, { 90, 85, 0, 0, 0, 0 },
{ 90, 85, 65, 78, 0, 0 }, { 90, 85, 73, 0, 0, 0 },
{ 90, 85, 78, 0, 0, 0 }, { 90, 85, 79, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0 }, { 83, 72, 65, 78, 0, 0 },
{ 0, 0, 0, 0, 0, 0 }, };
/**
* First and last Chinese character with known Pinyin according to zh
* collation
*/
private static final String FIRST_PINYIN_UNIHAN = "\u963F";
private static final String LAST_PINYIN_UNIHAN = "\u9FFF";
private static final Collator COLLATOR = Collator.getInstance(Locale.CHINA);
private static HanziToPinyin sInstance;
private final boolean mHasChinaCollator;
public static class Token {
/**
* Separator between target string for each source char
*/
public static final String SEPARATOR = " ";
public static final int LATIN = 1;
public static final int PINYIN = 2;
public static final int UNKNOWN = 3;
public Token() {
}
public Token(int type, String source, String target) {
this.type = type;
this.source = source;
this.target = target;
}
/**
* Type of this token, ASCII, PINYIN or UNKNOWN.
*/
public int type;
/**
* Original string before translation.
*/
public String source;
/**
* Translated string of source. For Han, target is corresponding Pinyin.
* Otherwise target is original string in source.
*/
public String target;
}
protected HanziToPinyin(boolean hasChinaCollator) {
mHasChinaCollator = hasChinaCollator;
}
public static HanziToPinyin getInstance() {
synchronized (HanziToPinyin.class) {
if (sInstance != null) {
return sInstance;
}
// Check if zh_CN collation data is available
final Locale locale[] = Collator.getAvailableLocales();
// 增加的代码，增强。
final Locale chinaAddition = new Locale("zh");
for (int i = 0; i < locale.length; i++) {
if (locale[i].equals(Locale.CHINA)
|| locale[i].equals(chinaAddition)) {
// Do self validation just once.
if (DEBUG) {
Log.d(TAG, "Self validation. Result: "
+ doSelfValidation());
}
sInstance = new HanziToPinyin(true);
return sInstance;
}
}
Log.w(TAG,
"There is no Chinese collator, HanziToPinyin is disabled");
sInstance = new HanziToPinyin(false);
return sInstance;
}
}
/**
* Validate if our internal table has some wrong value.
*
* @return true when the table looks correct.
*/
private static boolean doSelfValidation() {
char lastChar = UNIHANS[0];
String lastString = Character.toString(lastChar);
for (char c : UNIHANS) {
if (lastChar == c) {
continue;
}
final String curString = Character.toString(c);
int cmp = COLLATOR.compare(lastString, curString);
if (cmp >= 0) {
Log.e(TAG, "Internal error in Unihan table. "
+ "The last string \"" + lastString
+ "\" is greater than current string \"" + curString
+ "\".");
return false;
}
lastString = curString;
}
return true;
}
private Token getToken(char character) {
Token token = new Token();
final String letter = Character.toString(character);
token.source = letter;
int offset = -1;
int cmp;
if (character < 256) {
token.type = Token.LATIN;
token.target = letter;
return token;
} else {
cmp = COLLATOR.compare(letter, FIRST_PINYIN_UNIHAN);
if (cmp < 0) {
token.type = Token.UNKNOWN;
token.target = letter;
return token;
} else if (cmp == 0) {
token.type = Token.PINYIN;
offset = 0;
} else {
cmp = COLLATOR.compare(letter, LAST_PINYIN_UNIHAN);
if (cmp > 0) {
token.type = Token.UNKNOWN;
token.target = letter;
return token;
} else if (cmp == 0) {
token.type = Token.PINYIN;
offset = UNIHANS.length - 1;
}
}
}
token.type = Token.PINYIN;
if (offset < 0) {
int begin = 0;
int end = UNIHANS.length - 1;
while (begin <= end) {
offset = (begin + end) / 2;
final String unihan = Character.toString(UNIHANS[offset]);
cmp = COLLATOR.compare(letter, unihan);
if (cmp == 0) {
break;
} else if (cmp > 0) {
begin = offset + 1;
} else {
end = offset - 1;
}
}
}
if (cmp < 0) {
offset--;
}
StringBuilder pinyin = new StringBuilder();
for (int j = 0; j < PINYINS[offset].length && PINYINS[offset][j] != 0; j++) {
pinyin.append((char) PINYINS[offset][j]);
}
token.target = pinyin.toString();
if (TextUtils.isEmpty(token.target)) {
token.type = Token.UNKNOWN;
token.target = token.source;
}
return token;
}
/**
* Convert the input to a array of tokens. The sequence of ASCII or Unknown
* characters without space will be put into a Token, One Hanzi character
* which has pinyin will be treated as a Token. If these is no China
* collator, the empty token array is returned.
*/
public ArrayList<Token> get(final String input) {
ArrayList<Token> tokens = new ArrayList<Token>();
if (!mHasChinaCollator || TextUtils.isEmpty(input)) {
// return empty tokens.
return tokens;
}
final int inputLength = input.length();
final StringBuilder sb = new StringBuilder();
int tokenType = Token.LATIN;
// Go through the input, create a new token when
// a. Token type changed
// b. Get the Pinyin of current charater.
// c. current character is space.
for (int i = 0; i < inputLength; i++) {
final char character = input.charAt(i);
if (character == ' ') {
if (sb.length() > 0) {
addToken(sb, tokens, tokenType);
}
} else if (character < 256) {
if (tokenType != Token.LATIN && sb.length() > 0) {
addToken(sb, tokens, tokenType);
}
tokenType = Token.LATIN;
sb.append(character);
} else {
Token t = getToken(character);
if (t.type == Token.PINYIN) {
if (sb.length() > 0) {
addToken(sb, tokens, tokenType);
}
tokens.add(t);
tokenType = Token.PINYIN;
} else {
if (tokenType != t.type && sb.length() > 0) {
addToken(sb, tokens, tokenType);
}
tokenType = t.type;
sb.append(character);
}
}
}
if (sb.length() > 0) {
addToken(sb, tokens, tokenType);
}
return tokens;
}
private void addToken(final StringBuilder sb,
final ArrayList<Token> tokens, final int tokenType) {
String str = sb.toString();
tokens.add(new Token(tokenType, str, str));
sb.setLength(0);
}
}
写一个MainActivity.java测试汉字转化为汉语拼音输出的效果：
package zhangphil.hanyupinyin;
import java.util.ArrayList;
import zhangphil.hanyupinyin.HanziToPinyin.Token;
import android.app.Activity;
import android.os.Bundle;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String s = "安卓";
System.out.println("汉字转拼音输出: " + getPinYin(s));
}
// 输入汉字返回拼音的通用方法函数。
public static String getPinYin(String hanzi) {
ArrayList<Token> tokens = HanziToPinyin.getInstance().get(hanzi);
StringBuilder sb = new StringBuilder();
if (tokens != null && tokens.size() > 0) {
for (Token token : tokens) {
if (Token.PINYIN == token.type) {
sb.append(token.target);
} else {
sb.append(token.source);
}
}
}
return sb.toString().toUpperCase();
}
}
结果输出如图：
