如何从NSDictionary中删除空值 [英] How to remove a null value from NSDictionary

问题描述

我有一个JSON Feed：

I have a JSON Feed:

{
            "count1" = 2;
            "count2" = 2;
            idval = 40;
            level = "<null>";
            "logo_url" = "/assets/logos/default_logo_medium.png";
            name = "Golf Club";
            "role_in_club" = Admin;
}

问题是< null> 我无法弄清楚如何在将NSDictionary保存到NSUserDefaults之前从NSDictionary中删除。

The problem is the "<null>" that I cannot figure out how to remove from the NSDictionary before saving it to NSUserDefaults.

请帮我解决这个问题。谢谢！

Please help me solve this issue. Thankyou!

推荐答案

遍历字典并查找任何空条目并将其删除。

Iterate through the dictionary and look for any null entries and remove them.

NSMutableDictionary *prunedDictionary = [NSMutableDictionary dictionary];
for (NSString * key in [yourDictionary allKeys])
{
    if (![[yourDictionary objectForKey:key] isKindOfClass:[NSNull class]])
        [prunedDictionary setObject:[yourDictionary objectForKey:key] forKey:key];
}

之后， prunedDictionary 应该在原始字典中包含所有非空项目。

After that, prunedDictionary should have all non-null items in the original dictionary.

这篇关于如何从NSDictionary中删除空值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！