我在这里有点头疼（实际上很多）。我有一个已转换为 NSDictionary 的 JSON 响应。这是一堆嵌套数组和字典中的字典，等等......我不知道该怎么处理它。我想做的是为每个"项目"制作一个简单的 NSDictionary，并使用这些属性来驱动 UITableView。我不知道如何向下几级访问对象。我已经做了一些搜索，我看到有几种方法可以做到这一点（快速枚举、块等），但在我开始旋转轮子之前，我很想知道什么最适合我的特定情况。为了便于阅读，我将 NSDictionary 保存为列表。我会在这里发布它：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>search_result</key>
<dict>
<key>latitude</key>
<string>51.508129</string>
<key>longitude</key>
<string>-0.128005</string>
<key>page</key>
<string>1</string>
<key>per_page</key>
<integer>3</integer>
<key>results</key>
<array>
<dict>
<key>result</key>
<dict>
<key>description_short</key>
<string>Experience the history and mystery of the most famous sites in the South of England!</string>
<key>flex_reference</key>
<string>FLX-LON-77B-D2F-5ED5</string>
<key>geocoded_latitude</key>
<string>51.5081289</string>
<key>geocoded_longitude</key>
<string>-0.128005</string>
<key>name</key>
<string>Stonehenge, Glastonbury, Avebury and Chalice Well</string>
<key>primary_image</key>
<string>http://media.****.com/FLX-LON-77B-D2F-5ED5-image_original-56.jpg</string>
<key>product_categories</key>
<array>
<dict>
<key>product_category</key>
<dict>
<key>kind</key>
<string>type</string>
<key>name</key>
<string>Sightseeing Tours</string>
</dict>
</dict>
<dict>
<key>product_category</key>
<dict>
<key>kind</key>
<string>category</string>
<key>name</key>
<string>Excursion</string>
</dict>
</dict>
<dict>
<key>product_category</key>
<dict>
<key>kind</key>
<string>type</string>
<key>name</key>
<string>Attractions</string>
</dict>
</dict>
</array>
</dict>
</dict>
<dict>
<key>result</key>
<dict>
<key>description_short</key>
<string>Experience some of the most famous landmarks in English history, University City of Oxford, rolling countryside and honey stoned cottages of the Cotswolds and Stratford upon Avon home of the famous English plyright, William Shakespeare.</string>
<key>flex_reference</key>
<string>FLX-LON-2AD-267-38AB</string>
<key>geocoded_latitude</key>
<string>51.5081289</string>
<key>geocoded_longitude</key>
<string>-0.128005</string>
<key>name</key>
<string>Oxford, Stratford and the Cotswolds Villages</string>
<key>primary_image</key>
<string>http://media.*****.com/FLX-LON-2AD-267-38AB-image_original-AF.jpg</string>
<key>product_categories</key>
<array>
<dict>
<key>product_category</key>
<dict>
<key>kind</key>
<string>type</string>
<key>name</key>
<string>Sightseeing Tours</string>
</dict>
</dict>
<dict>
<key>product_category</key>
<dict>
<key>kind</key>
<string>category</string>
<key>name</key>
<string>Excursion</string>
</dict>
</dict>
<dict>
<key>product_category</key>
<dict>
<key>kind</key>
<string>type</string>
<key>name</key>
<string>Attractions</string>
</dict>
</dict>
</array>
</dict>
</dict>
<dict>
<key>result</key>
<dict>
<key>description_short</key>
<string>The must see attractions of the United Kingdom, World Heritage sites, Stonehenge and the Roman Baths.</string>
<key>flex_reference</key>
<string>FLX-LON-65D-AC0-B08E</string>
<key>geocoded_latitude</key>
<string>51.5081289</string>
<key>geocoded_longitude</key>
<string>-0.128005</string>
<key>name</key>
<string>Stonehenge and Bath</string>
<key>primary_image</key>
<string>http://media.****.com/FLX-LON-65D-AC0-B08E-image_original-2E.jpg</string>
<key>product_categories</key>
<array>
<dict>
<key>product_category</key>
<dict>
<key>kind</key>
<string>type</string>
<key>name</key>
<string>Sightseeing Tours</string>
</dict>
</dict>
<dict>
<key>product_category</key>
<dict>
<key>kind</key>
<string>category</string>
<key>name</key>
<string>Excursion</string>
</dict>
</dict>
</array>
</dict>
</dict>
</array>
<key>total_pages</key>
<integer>18</integer>
<key>total_results</key>
<integer>54</integer>
</dict>
</dict>
</plist>
NSDictionary *jsonResponse = /* get your dictionary from wherever */
NSDictionary *searchResults = [jsonResponse objectForKey:@"search_result"];
NSArray *allResults = [searchResults objectForKey:@"results"];
for (NSDictionary *result in allResults)
{
NSDictionary *resultDetails = [result objectForKey:@"result"];
NSString *name = [resultDetails objectForKey:@"name"];
NSURL *imageURL = [NSURL URLWithString:[resultDetails objectForKey:@"primary_image"]];
NSLog(@"Name: %@n URL: %@", name, imageURL);
}
检索字典：
NSDictionary* dict= jsonDict[@"search_results"];
键"结果"的值是一个数组：
NSArray* results = dict[@"results"];
在第一个索引处有一个字典：
NSDictionary* dict2= results[0];
对于关键的"结果"，还有另一个字典：
NSDictionary* dict3= dict2[@"result"];
从此字典中，您可以检索所需的值：
NSString* name= dict3[@"name"];
NSString* primaryImage= dict3[@"primary_image"];
无论你有多少个字典和数组，你都可以读一个，然后你可以全部读出来。要更轻松地做到这一点，只需将它们想象成数据包中的数据包，然后用对象绘制一个图表。
编辑
我没有指定字典是什么，添加了它。