如何将 JSON 数据添加到 NSArray [英] how to add JSON data to an NSArray

问题描述

我有如下的 json 数据.

<预><代码>[{"id":"2","imagePath":"image002.jpg","enDesc":"Nice Image 2"},{"id":"1","imagePath":"image001.jpg","enDesc":"Nice Image 1"}]

我将其分配给名为 NSArray *news 的变量.

现在我有三个不同的数组，如下所示.

NSArray *idArray;NSArray *pathArray;NSArray *descArray;

我想将新闻数据分配给这些数组，以便最终得到如下结果.

NSArray *idArray = @["2","1"];NSArray *pathArray = @["image002.jpg","image001.jpg"];NSArray *descArray = @["Nice Image 2","Nice Image 1"];

知道如何完成这项工作吗?

<小时>

在以下答案的帮助下，这就是我所做的.

pathArray = [[NSArray alloc] initWithArray:[news valueForKey:@"imagePath"]];

出于某些原因，我不想使用 NSMutableArray.

解决方案

您应该使用 JSONKit 或 TouchJSON 将您的 JSON 数据转换为 Dictionary.比你可以这样做:

NSArray *idArray = [dictionary valueForKeyPath:@"id"];//KVO

I have json data as below.

[
    {"id":"2","imagePath":"image002.jpg","enDesc":"Nice Image 2"},
    {"id":"1","imagePath":"image001.jpg","enDesc":"Nice Image 1"}
]

I am assigning this to variable named NSArray *news.

Now I have three different array as below.

NSArray *idArray;
NSArray *pathArray;
NSArray *descArray;

I want to assign data of news to these arrays so that finally I should have as below.

NSArray *idArray = @["2","1"];
NSArray *pathArray = @["image002.jpg","image001.jpg"];
NSArray *descArray = @["Nice Image 2","Nice Image 1"];

Any idea how to get this done?

---

With the help of below answer this is what I did.

pathArray = [[NSArray alloc] initWithArray:[news valueForKey:@"imagePath"]];

I don't wanted to use NSMutableArray for some reasons.

解决方案

You should use JSONKit or TouchJSON to convert your JSON data to Dictionary. Than you may do this :

NSArray *idArray = [dictionary valueForKeyPath:@"id"]; // KVO

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