android开发中使用pinyin4android变换汉字为pinying

public class Chinese2SpellUtils {		 /**     * 使用pinyin4android.jar将汉字转换为拼音     * https://code.google.com/p/pinyin4android/downloads/detail?name=pinyin4android1.0.jar&can=2&q=     * @param chineseStr     * @return     */    public static String chineneToSpell(Context context,String chineseStr) {        if (isChinese(chineseStr)) {            String pinying = PinyinUtil.toPinyin(context,chineseStr);            return pinying.toUpperCase();        }        return chineseStr;    }    /**     * 判断字符串中是否包含有中文     *      * @param str     * @return     */    public static boolean isChinese(String str) {        String regex = "[\\u4e00-\\u9fa5]";        Pattern pattern = Pattern.compile(regex);        Matcher matcher = pattern.matcher(str);        return matcher.find();    }    /**     * 判断是否是a-z     *      * @param str     * @return     */    public  static boolean isA2Z(String str) {        String regex = "[A-Za-z]";        Pattern pattern = Pattern.compile(regex);        Matcher matcher = pattern.matcher(str);        return matcher.find();    }    //获得汉语拼音首字母      public static String getAlpha(String spellStr) {            if (spellStr == null) {                return "#";            }                if (spellStr.trim().length() == 0) {                return "#";            }                char c = spellStr.trim().substring(0, 1).charAt(0);            // 正则表达式，判断首字母是否是英文字母            Pattern pattern = Pattern.compile("^[A-Za-z]{1}");            if (pattern.matcher(c + "").matches()) {                return (c + "").toUpperCase();            } else {                return "#";            }        }    }

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