开发了一个 Xcode 插件 XPaste

https://github.com/rickytan/XPaste

将你的 json 文本：

{
  "name": "John",
  "age": 30,
  "house": null,
  "cars": [ "Ford", "BMW", "Fiat" ]
}

直接粘贴为 NSDictionary：

id object = @{@"age": @30,
              @"cars": @[@"Ford",
                         @"BMW",
                         @"Fiat"],
              @"name": @"John",
              @"house": [NSNull null]};

等等