从数组中获取变量

Question

使用该代码我能够获取数组的所有列表。

看了很多教程，但如果 "name" 等于 "Timeline Photos"，我无法获得名为 "id" 的变量。

代码：

     NSArray *feed =[result objectForKey:@"data"];
      for (NSDictionary *dict in feed) {

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

结果（前两个结果的例子）：

2015-02-03 13:59:21.246 Project[708:29363] {
    "can_upload" = 0;
    count = 68;
    "cover_photo" = 10200808394440000;
    "created_time" = "2011-03-09T17:25:03+0000";
    from =     {
        id = 10204248513160000;
        name = "XX XX";
    };
    id = 1716972770000;
    link = "https://www.facebook.com/album.php?..";
    name = "Mobile Uploads";
    privacy = everyone;
    type = mobile;
    "updated_time" = "2015-01-31T13:28:32+0000";
}
2015-02-03 13:59:21.247 Project[708:29363] {
    "can_upload" = 0;
    count = 11;
    "cover_photo" = 4383404270000;
    "created_time" = "2010-02-15T15:50:30+0000";
    from =     {
        id = 10204248513160000;
        name = "XX XX";
    };
    id = 1267183610000;
    link = "https://www.facebook.com/album.php?...";
    name = "Timeline Photos";
    privacy = everyone;
    type = wall;
    "updated_time" = "2015-01-28T18:26:52+0000";
}

Answer 1

试试这个：

 NSArray *feed =[result objectForKey:@"data"];
  for (NSDictionary *dict in feed) {

        if ([dict[@"name"] isEqualToString:@"Timeline Photos"])
            NSLog(@"%@",dict[@"id"]);                                  
}

这只会在 name 等于时间轴照片时打印 id。实际上，您不是在使用数组，而是在使用字典。

希望对您有所帮助。

从数组中获取变量

get var from an array

objective-c

nsdictionary

nsarray

facebook-graph-api

ios