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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; }];
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原文地址:http://www.cnblogs.com/salam/p/5126053.html