iOS排序NSDictionary [英] IOS Sort NSDictionary

问题描述

首先，这是我的代码:

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL
                                                          URLWithString:url]];

    NSData *response = [NSURLConnection sendSynchronousRequest:request
                                             returningResponse:nil error:nil];

    NSDictionary *publicTimeline = [NSJSONSerialization JSONObjectWithData:response       options:0 error:&jsonParsingError];

    for (NSObject* key in publicTimeline) {
        id value = [publicTimeline objectForKey:key];
        NSLog(@"%@", key);
    }

我在Web服务上几乎没有收到任何消息，并在tableView中显示它.

I take few news on a webservice, and i show it in a tableView.

我的问题是这些新闻没有按顺序显示.

My problem is that these news aren't show in order.

在我的Web服务中，新闻是按顺序排列的，例如我有:

In my webservice, the news are in order, for example i have :

    {"0":{"title":"News1"}}
    {"1":{"title":"News2"}}
    {"2":{"title":"News3"}}

等.

但是在循环中，我松开"了这个顺序:/而且我想按此顺序显示我的新闻，首先是索引为"0"的新闻，之后是"1"等...

but in the loop, i "loose" this order :/ And i want to have my news in this order, first the news with the index "0" after "1" etc...

(NSDictionary似乎取消了此顺序，例如，在我的代码之后，我在表视图中看到了新闻:"2"，"0"，"1"，而不是我的新闻"0"，"1 ，" 2.)

(the NSDictionary seems to loose this order, for example, after my code, i have in my tableview, the news : "2", "0", "1", and not my news "0", "1", "2". )

(我尝试了一些答案，但在我的情况下似乎没有任何效果:()

(i tried some answers, but none seems to work in my case :( )

有人帮我吗? thx，

SOmeone to help me ? thx,

推荐答案

这是我上次用来对字典中的键进行排序的内容.希望您可以更轻松地实现它:)

This is what I used last time to sort the keys of my dictionary. Hope it will be easier for you to implement it :)

NSMutableArray *sortedArray = [NSMutableArray arrayWithArray:publicTimeline.allKeys];
[sortedArray sortUsingSelector:@selector(localizedStandardCompare:)];

您应该将已排序的键放在sortedArray

And you should have your sorted keys in sortedArray

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