IOS通讯录分组排序

###################### 测试代码 ##########################
NSArray *sortArray = @[@"du",@"zhong",@"dulibai",@"shu",@"杜树忠"];
NSMutableArray *userModels = [NSMutableArray array];
for (NSString *name in sortArray) {
// User *user = [User new];
// user.name = name;
[userModels addObject:name];
}

NSMutableArray *list = [self sortArray:sortArray];

//NSArray *sortedArray = [userModels sortedArrayUsingFunction:nickNameSort context:NULL];

// for (User *user in sortedArray) {
// NSLog(@"%@",user.name);
// }

for (NSString *user in list) {
    NSLog(@"%@",user);
}

############### 功能代码 ###################

• (NSMutableArray*)sortArray:(NSArray *)toSortArray{
  //将传入数组转换为可变数组
  NSMutableArray *needSortArray = [NSMutableArray arrayWithArray:toSortArray];
  //存储对应字母开头的所有数据的数组
  NSMutableArray *classifiedArray = [[NSMutableArray alloc] init];

  for(int i='A';i<='Z';i++){
  NSMutableArray *rulesArray = [[NSMutableArray alloc] init];
  NSString *indexString = [NSString stringWithFormat:@"%c",i];
  for(int j = 0; j < needSortArray.count; j++){
  User *model = [needSortArray objectAtIndex:j];
  //NSString *model = [needSortArray objectAtIndex:j];

        if([[self toPinyin: model] isEqualToString:indexString]){
            //把model.name首字母相同的放到同一个数组里面
            [rulesArray addObject:model];
            [needSortArray removeObject:model];
            j--;
        }
    }
    if (rulesArray.count !=0) {
        [classifiedArray addObject:rulesArray];
    }
    
    if (needSortArray.count == 0) {
        break;
    }
  

  }

  // 剩下的就是非字母开头数据，加在classifiedArray的后面
  if (needSortArray.count !=0) {
  [classifiedArray addObject:needSortArray];
  }

  //最后再分别对每个数组排序
  NSMutableArray *sortCompleteArray = [NSMutableArray array];
  for (NSArray *tempArray in classifiedArray) {
  NSArray *sortedElement = [tempArray sortedArrayUsingFunction:nickNameSort context:NULL];
  [sortCompleteArray addObject:sortedElement];
  }
  //sortCompleteArray就是最后排好序的二维数组了
  return sortCompleteArray;
  }

• (NSString *)toPinyin:(NSString *)str{
  NSMutableString *ms = [[NSMutableString alloc]initWithString:str];
  if (CFStringTransform((__bridge CFMutableStringRef)ms, 0,kCFStringTransformMandarinLatin, NO)) {
  }
  // 去除拼音的音调
  if (CFStringTransform((__bridge CFMutableStringRef)ms, 0,kCFStringTransformStripDiacritics, NO)) {
  if (str.length) {
  NSString *bigStr = [ms uppercaseString];
  NSString *cha = [bigStr substringToIndex:1];
  return cha;
  }
  }
  return str;
  }