如何使用 json 字典，所以 key 为空然后 value 不会选择？

Question

我有 NSDictionary 元素和我在桌子上显示的这本字典，如果从这些 dict 中选择任何元素，我会做什么，这将显示在文本字段上。

dict :{
    "" = "Select Elements";
    1 = lengha;
    2 = Choli;
    3 = Pyjami;
    4 = Dupatta;
    5 = Salwar;
    6 = Yoke;
    8 = Body;
}

现在我必须这样做，如果键为空，则不会在文本字段上选择值。即“选择元素”这将不会在文本字段上选择，或者如果它被选中，则数据将不会保存并显示一些保存信息。

  UITableViewCell *selectedCell = [itemTable cellForRowAtIndexPath:indexPath];
        NSString *elemCell = selectedCell.textLabel.text;
        NSMutableArray *arrayElements = Nil;
        if([elementsField.text isEqualToString:@""])
        {
            arrayElements = [NSMutableArray new];

        }
        else
        {
            arrayElements = [[elementsField.text componentsSeparatedByString:@","]mutableCopy];

        }
        if ([arrayElements containsObject: elemCell])
        {
            [arrayElements removeObject:elemCell];
        }
        else
        {
            [arrayElements addObject: elemCell];

        }
        NSString *str = [arrayElements componentsJoinedByString:@","];

        elementsField.text = @"";
        elementsField.text = str;
        [itemTable deselectRowAtIndexPath:indexPath animated:YES];
        itemTable.hidden = YES;

    }

Answer 1

该 JSON 数据定义错误，应如下所示：

choices : {
    "title" = "Select Elements",
    "elements" =  [
        "lengha",
        "Choli",
        "Pyjami",
        "Dupatta",
        "Salwar",
        "Yoke",
        "Body"
    ]
}

这将解决您的问题。