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） 。

于是需要被迫包含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
     
       PinYinDict = new Dictionary
      
           {        {
    "猿", "YUAN"}        // 等............    };    /// 
       
    /// Return to the first letter    /// 
    /// 
       Chinese word    /// 
       
            /// GetFirstPinyinChar("张三")    /// will return "Z"    /// Can be used for address book index and so on    /// 
           /// 
           public static string GetFirstPinyinChar(string word)    {        if (word.Length == 0) return "#";        var firstLetter = word[0].ToString();        if (PinYinDict.ContainsKey(firstLetter))        {            return PinYinDict[firstLetter];        }        return firstLetter;    }    /// 
       
    /// return the chinese char's pinyin    /// 
    /// 
           /// 
       
            /// GetPinYin('福')    /// will return "FU"    /// 
           /// 
           public static string GetPinYin(char chineseChar)    {        var str = chineseChar.ToString();        if (PinYinDict.ContainsKey(str))        {            return PinYinDict[str];        }        return null;    }    /// 
       
    /// Get the phonetic abbreviation for Chinese char    /// 
    /// 
           /// 
       
            /// GetShortPinYin('福')    /// will return "F"    /// 
           /// 
           public static string GetShortPinYin(char chineseChar)    {        var str = chineseChar.ToString();        if (PinYinDict.ContainsKey(str))        {            var first = PinYinDict[str].FirstOrDefault();            if (first == 0) return null;            return first.ToString();        }        return null;    }}
      
     

 

源码：

 

GITHUB：