过滤NSDictionary中的键

Question

我有两个数组，一个名为'arrayGO'(存储来自数据库的用户列表)，另一个名为'idtGO'(存储用户id列表)。arrayGO满足以下结构:

@"安德鲁"@"Aline-A"@"Bruno-B"@"Bola-B"@"Caio-C"

我有一个命令可以过滤这个数组，分隔破折号后面的字母，这样组织数组:

NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
    NSMutableDictionary *dictionaryIDT = [NSMutableDictionary dictionary];
    for (NSString *string in arrayGO) {
        NSArray *components = [string componentsSeparatedByString:@"-"];
        NSString *key = components[1];
        NSMutableArray *tempArray = dictionary[key];
        if (!tempArray){
            tempArray = [NSMutableArray array];
        }
        [tempArray addObject:components[0]];
         dictionary[key] = tempArray;
    }

这个命令返回我想要的数组，在这个例子中是:

A = (艾琳,安德烈)；B = (流星锤,布鲁诺)；C = (Caio

);

然而，我需要对存储用户'id '的变量做同样的事情，在这个cade中，数组'idtGO'满足以下结构:

@"4"@"1"@"12"@"22"@"33"

所有我想做的就是和我对名字列表做的一样的事情，所以在这个例子和id中，我试图得到以下结果:

0 = (4,1);1 = (12,22);2 = (33);

我试试这个:

NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
NSMutableDictionary *dictionaryIDT = [NSMutableDictionary dictionary];
int idtIndex = 0;
int idtKeys = 0;
for (NSString *string in arrayGO) {
    NSArray *components = [string componentsSeparatedByString:@"-"];
    NSString *key = components[1];
    NSString *keyIdt = [NSString stringWithFormat:@"%d", idtIndex];
    NSMutableArray *tempArray = dictionary[key];
    NSMutableArray *tempArrayidt = dictionaryIDT[keyIdt];
    if (!tempArray){
        tempArray = [NSMutableArray array];
        tempArrayidt = [NSMutableArray array];
        [tempArrayidt addObject:keyIdt];
        dictionaryIDT[keyIdt] = tempArrayidt;
        idtKeys++;
        idtIndex++;
    }else{
        idtIndex++;
    }
    [tempArray addObject:components[0]];
    dictionary[key] = tempArray;

}

如果有人能帮我解决这个难题，我将非常感激。

Answer 1

好吧，伙计们，我试了又试，终于得到了这个谜题的答案，下面的代码显示了如何:

NSMutableDictionary  *dictionary = [NSMutableDictionary dictionary];
NSMutableDictionary  *dictionaryIDT = [NSMutableDictionary dictionary];
     NSString *keyTemp = @"nulo";
    for (NSString *string in arrayGO) {
        NSArray *components = [string componentsSeparatedByString:@"-"];
        NSString *key = components[1];
        NSString *keyIdt = [NSString stringWithFormat:@"%@", idt[idtKeys]];
        NSString *keyIdtIndex = [NSString stringWithFormat:@"%d",idtIndex];
        NSMutableArray *tempArray = dictionary[key];
        NSMutableArray *tempArrayidt = dictionaryIDT[keyIdtIndex];
        if (!tempArray){
            tempArray = [NSMutableArray array];
            tempArrayidt = [NSMutableArray array];
        }
        [tempArray addObject:components[0]];
        dictionary[key] = tempArray;

            if([keyTemp isEqual: @"nulo"]){
                //Veririca se a variavel keyTemp é igual a zero, se ela for isso quer dizer que é a primeira vez que estamos aqui, e se for a variavel keyTemp Sera igual a key
                keyTemp = key;
                [tempArrayidt addObject:keyIdt];
                dictionaryIDT[keyIdtIndex] = tempArrayidt;
                idtKeys++;
            }else{
                //Se caimos aqui entao quer dizer que jaé a segunda vez que nos estamos caindo aqui, neste caso devemos verificar se a keyTemp ainda é a mesma

                if([key isEqual: keyTemp]){
                    //Se for igual é porque nada mudou, ainda estamos tratando aquela chave, entao...
                    [tempArrayidt addObject:keyIdt];
                    dictionaryIDT[keyIdtIndex] = tempArrayidt;
                    idtKeys++;
                }else{
                    //Se nao é porque a key mudou, entao agora nos devemos aumentar o idtIndex, redefinir o idtKeys e falar que a key é igual a keyTemp
                    idtIndex++;
                    keyIdtIndex = [NSString stringWithFormat:@"%d",[keyIdtIndex intValue] + 1];
                    idtKeys++;
                    keyTemp = key;
                    //Agora faremos o mesmo esquema de sempre...
                    [tempArrayidt addObject:keyIdt];
                    dictionaryIDT[keyIdtIndex] = tempArrayidt;
                }
            }

    }

NSLog(@"%@",dictionaryIDT);