iOS代码汉字转拼音

NSString *hanziText = @"今天天气不错";
if ([hanziText length]) {
    NSMutableString *ms = [[NSMutableString alloc] initWithString:hanziText];
    if (CFStringTransform((__bridge CFMutableStringRef)ms, 0, kCFStringTransformMandarinLatin, NO)) {
        //带音调
        NSLog(@"pinyin: %@", ms);
    }
    if (CFStringTransform((__bridge CFMutableStringRef)ms, 0, kCFStringTransformStripDiacritics, NO)) {
        //去除音调
        NSLog(@"pinyin: %@", ms);  

    }
}