Iphone IOS中嵌套的NSArray值更改

我有一个嵌套数组：

NSArray *cellInfos = @[
@[
  @{MenuCellId:@"1", MenuCellCounterKey:"0"},
  @{MenuCellId:@"2", MenuCellCounterKey:"0"}
],
@[
  @{MenuCellId:@"3", MenuCellCounterKey:"0"},
  @{MenuCellId:@"4", MenuCellCounterKey:"0"}
]];

如何通过MenuCellId更改MenuCellCounterKey值

---

谢谢

您需要复制数组深度，确保您获得的数组是可变的，并且nsdictionary也是可变的，然后遍历数组，参考层，比较MenuCellId，并更改MenuCellCounterKey

NSMutableArray * mutableCellInfos = [cellInfos mutableCopy];
for (int i = 0; i < mutableCellInfos.count; ++i)
{
    NSMutableArray * mutableSection = [[mutableCellInfos objectAtIndex:i] mutableCopy];
    for (int j = 0; j < mutableSection.count; ++j)
    {
        NSMutableDictionary * mutableItem = [[mutableSection objectAtIndex:j] mutableCopy];
        if ([mutableItem objectForKey:@"3"]) {
            [mutableItem setObject:@"new value" forKey:@"3"];
        }

        [mutableSection replaceObjectAtIndex:j withObject:mutableItem];
    }

    [mutableSection replaceObjectAtIndex:i withObject:mutableSection];
}

cellInfos = mutableCellInfos;

NSMutableArray*mutableCellInfos=[cellInfos mutableCopy]；
对于（int i=0；i

首先，您需要

NSMutableArray

，因为

NSArray

无法修改。请更简要地解释您的问题。为什么有两个相同类型的字典数组？这是表视图中的两个或更多部分。在我的例子中，MenuCellCounterKey和MenuCellId是一个常量：NSString const*MenuCellId=@“CellId”