iOS汉字转拼音第三方库

PinYin4Objc是一个在git汉字转拼音的开源库，支持简体和繁体中文。效率POAPinyin等其他库要高，转换库也完整下面简单介绍

实现原理

使用unicode_to_hanyu_pinyin.txt存储汉字编码相对应的拼音，以字典加载到内存中

 NSString *resourceName =[[NSBundle mainBundle] pathForResource:@"unicode_to_hanyu_pinyin" ofType:@"txt"];          NSString *dictionaryText=[NSString stringWithContentsOfFile:resourceName encoding:NSUTF8StringEncoding error:nil];          NSArray *lines = [dictionaryText componentsSeparatedByString:@"\r\n"];          __block NSMutableDictionary *tempMap=[[NSMutableDictionary alloc] init];          @autoreleasepool {                  [lines enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {                      NSArray *lineComponents=[obj componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];                      [tempMap setObject:lineComponents[1] forKey:lineComponents[0]];                  }];           }          self->_unicodeToHanyuPinyinTable=tempMap;          [self cacheObjec:self->_unicodeToHanyuPinyinTable forKey:kCacheKeyForUnicode2Pinyin];

当我们输入汉字后，得到该汉字的编码。下面图为例。当我们点击OK按钮后

NSString *mainPinyinStrOfChar = [PinyinHelper getFirstHanyuPinyinStringWithChar:[str characterAtIndex:i] withHanyuPinyinOutputFormat:outputFormat];通过循环来生成汉字编码

从字典中查询key为“8F6C”的值为

取数组第一个就为拼音...

使用

1. 下载库

2.引入头文件 #import "PinYin4Objc.h"

3.创建拼音字符格式

HanyuPinyinOutputFormat *outputFormat=[[HanyuPinyinOutputFormat alloc] init];

格式包含ToneType，CharType，CaseType

typedef enum {    ToneTypeWithToneNumber,//有音调数字，如PIN1    ToneTypeWithoutTone,//无音调    ToneTypeWithToneMark  }ToneType;

typedef enum {      CaseTypeUppercase,//拼音大小      CaseTypeLowercase// 拼音小写  }CaseType;

typedef enum {      VCharTypeWithUAndColon,      VCharTypeWithV,      VCharTypeWithUUnicode  }VCharType;

4.设置格式

[outputFormat setToneType:ToneTypeWithoutTone];

[outputFormat setVCharType:VCharTypeWithV];

[outputFormat setCaseType:CaseTypeLowercase];

5.调用toHanyuPinyinStringWithNSString:withHanyuPinyinOutputFormat:withNSString:outputBlock进行转换

[PinyinHelper toHanyuPinyinStringWithNSString:sourceText withHanyuPinyinOutputFormat:outputFormat withNSString:@" " outputBlock:^(NSString *pinYin)   {        _outputTv.text=pinYin;      }];