iOS 汉字转拼音

- (NSString *)getFirstString:(ICCustom *)custom {
NSMutableString *source = [custom.merchantAbbreviation mutableCopy];
if(source && custom.merchantAbbreviation.length>0)

{
CFRange range = CFRangeMake(0, 1);
CFStringTransform((__bridge CFMutableStringRef)source, &range, kCFStringTransformMandarinLatin, NO);
CFStringTransform((__bridge CFMutableStringRef)source, &range, kCFStringTransformStripDiacritics, NO);
NSString *phonetic = source;
phonetic = [phonetic substringToIndex:1];
phonetic = [phonetic uppercaseString];
int temp = [phonetic characterAtIndex:0];
if (temp < 65 || temp > 122 || (temp > 90 && temp < 97)) {
//不合法的title
phonetic = @"#";
}else{
phonetic = phonetic;
}
return phonetic;
}else
{
return @"#";
}

}