感谢桐丘的方法，可以实现排序。
冒泡排序方法实现数组排序，数组中元素为中文字符串，方法如下：
//数组排序
- (void)sortedArrayWithChineseObject:(NSMutableArray *)mArray {
for(NSUInteger i = 0; i < mArray.count - 1; i++) {
for(NSUInteger j = 0; j < mArray.count - i - 1; j++) {
NSString *pinyinFirst = [NSString lowercaseSpellingWithChineseCharacters:mArray[j]];
NSString *pinyinSecond = [NSString lowercaseSpellingWithChineseCharacters:mArray[j + 1]];
//此处为升序排序，若要降序排序，把NSOrderedDescending 换为NSOrderedAscending即可。
if(NSOrderedDescending == [pinyinFirst compare:pinyinSecond]) {
NSString *tempString = mArray[j];
mArray[j] = mArray[j + 1];
mArray[j + 1] = tempString;
}
}
}
//测试
// NSLog(@"%@", mArray);
}
汉字转拼音，NSString的分类
NSString+ChineseCharactersToSpelling.h
#import <Foundation/Foundation.h>
@interface NSString (ChineseCharactersToSpelling)
+(NSString *)lowercaseSpellingWithChineseCharacters:(NSString *)chinese;
@end
NSString+ChineseCharactersToSpelling.m
#import "NSString+ChineseCharactersToSpelling.h"
@implementation NSString (ChineseCharactersToSpelling)
+(NSString *)lowercaseSpellingWithChineseCharacters:(NSString *)chinese {
//转成了可变字符串
NSMutableString *str = [NSMutableString stringWithString:chinese];
//先转换为带声调的拼音
CFStringTransform((CFMutableStringRef)str, NULL, kCFStringTransformMandarinLatin, NO);
//再转换为不带声调的拼音
CFStringTransform((CFMutableStringRef)str, NULL, kCFStringTransformStripDiacritics, NO);
//返回小写拼音
return [str lowercaseString];
}
@end
