iphone - 如何解析 iphone 中的 json 响应？

Question

我有一个应用程序，其中我有一个像这样的 json 响应:

{
    "status":"ok",
    "dfs":[{"type":"i",
    "title":"image",
    "image_path":"https:\/\/s3.dhgdfhgfhgdhgfh\/ad_226.png"}]
}

我是这样解析的:

NSDictionary *dict=[[request responseString] JSONValue];                
NSLog(@"dict %@ ",[request responseString]);

if([[dict objectForKey:@"status"] isEqualToString:@"ok"])
{                   
    NSMutableDictionary *dict1=[dict objectForKey:@"dfs"]; 

    NSLog(@"%@",[dict1 classForCoder]);
    NSLog(@"%@dict1",dict1);
    titlelbl.text=[dict1 objectForKey:@"title"];

    if ([[dict1 objectForKey:@"type"] isEqualToString:@"i"])
    {
        ad.hidden=NO;

        NSString *imageurl=[dict1 objectForKey:@"image_path"];

        NSLog(@"%@",imageurl);
    } 

但是我得到这个错误:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM objectForKey:]: unrecognized selector sent to instance 0xde7ecf0' .

我将 dict1 类文件夹作为 nsmutable 数组。谁能帮助我实现这一目标？

Answer 1

{
"status":"ok",
"dfs":
[
{
"type":"i",
"title":"image ",
"image_path":"https:\/\/s3.dhgdfhgfhgdhgfh\/ad_226.png"
}
]
}

读取上面的 json 响应，它是一个字典，其中第一个对象是字符串，第二个是字典数组(只有一个对象)。

NSDictionary *dict = [[request responseString] JSONValue];

if([[dict objectForKey:@"status"] isEqualToString:@"ok"])
{
     NSArray* arr = [dict objectForKey:@"dfs"];
     NSDictionary* dict1 = [arr objectAtIndex:0];
enter code here
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// get the data from dict1 with the key value pairs, and set labels and images
}