Xamarin写Android程序时，通常要使用按中文首字母分组显示（如通讯录） 。
于是需要*包含CJK，不过包含后包肯定是会变大的，于是。。。。自己写了一个硬枚举的中文转拼音的类。
原理是这样的：
public class PinYinUtils
{
private static readonly Dictionary<string, string> PinYinDict = new Dictionary<string, string>
{ {"猿", "YUAN"}
// 等............
};
/// <summary>
/// Return to the first letter
/// </summary>
/// <param name="word">Chinese word</param>
/// <example>
/// GetFirstPinyinChar("张三")
/// will return "Z"
/// Can be used for address book index and so on
/// </example>
/// <returns></returns>
public static string GetFirstPinyinChar(string word)
{
if (word.Length == ) return "#";
var firstLetter = word[].ToString();
if (PinYinDict.ContainsKey(firstLetter))
{
return PinYinDict[firstLetter];
}
return firstLetter;
}
/// <summary>
/// return the chinese char's pinyin
/// </summary>
/// <param name="chineseChar"></param>
/// <example>
/// GetPinYin('福')
/// will return "FU"
/// </example>
/// <returns></returns>
public static string GetPinYin(char chineseChar)
{
var str = chineseChar.ToString();
if (PinYinDict.ContainsKey(str))
{
return PinYinDict[str];
}
return null;
}
/// <summary>
/// Get the phonetic abbreviation for Chinese char
/// </summary>
/// <param name="chineseChar"></param>
/// <example>
/// GetShortPinYin('福')
/// will return "F"
/// </example>
/// <returns></returns>
public static string GetShortPinYin(char chineseChar)
{
var str = chineseChar.ToString();
if (PinYinDict.ContainsKey(str))
{
var first = PinYinDict[str].FirstOrDefault();
if (first == ) return null;
return first.ToString();
}
return null;
} }
源码：
https://github.com/chsword/PinYinUtil/blob/master/PinYinUtils.cs