如何以相同的方式改变NSMutable数组的顺序，另一个可变数组被更改 [英] how to change order of NSMutable array in same way another mutable arrays get changed

问题描述

我有三个数组。它们是名称，生日和剩余天，如下所示：

I have three arrays. They are name, birthdates and remaining days like below:

    name                         birthdate                 remaining 

    "Abhi Shah",                 "01/14",                  300
    "Akash Parikh",              "12/09/1989",             264
    "Anand Kapadiya",            "12/01",                  256
    "Annabella Faith Perez",     "03/02",                  347
    "Aysu Can",                  "04/14/1992",             25
    "Chirag Pandya"              "10/07/1987"              201

我想重新安排剩余天数组升序，
但同时 name 和 birthdate 也应该以相同的方式重新排序。

I want to rearrange the remaining days array into ascending order, but at the same time name and birthdate should also get reordered in the same way.

请参阅下面的示例：

    name                         birthdate                 remaining 

    "Aysu Can",                  "04/14/1992",             25
    "Chirag Pandya"              "10/07/1987"              201
    "etc..."

推荐答案

    self.arrayForRows = [[NSMutableArray alloc]init];
    NSMutableArray *arrayForNames = [[NSMutableArray alloc]initWithObjects:@"Abhi Shah",@"Akash",@"Nagavendra",@"Ramana",@"Simhachalam", nil];
    NSMutableArray *arrayForBirthDates = [[NSMutableArray alloc]initWithObjects:@"01/14/94",@"01/14",@"11/07/87",@"12/07/89",@"23/08/91", nil];
    NSMutableArray *arrayForRemaining = [[NSMutableArray alloc]initWithObjects:@"200",@"320",@"32",@"450",@"14", nil];


    for (int i=0; i<arrayForBirthDates.count; i++)
    {
       NSMutableDictionary *tempDicts = [[NSMutableDictionary alloc]init];
       [tempDicts setObject:[arrayForNames objectAtIndex:i] forKey:@"names"];
       [tempDicts setObject:[arrayForBirthDates objectAtIndex:i] forKey:@"birth"];
       [tempDicts setObject:[NSNumber numberWithInt:[[arrayForRemaining objectAtIndex:i] intValue]] forKey:@"remaining"];
       [self.arrayForRows addObject:tempDicts];
    }  


    NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"remaining" ascending:YES];
    [self.arrayForRows sortUsingDescriptors:[NSArray arrayWithObject:sortDescriptor]];

在tableView列表中使用

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [self.arrayForRows count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifer = @"cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifer];
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifer];
    }
    cell.textLabel.text = [[self.arrayForRows objectAtIndex:indexPath.row] valueForKey:@"names"];
    return cell;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

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