NSDictionary。如何创建NSDictionary对象

Question

我有这个方法。

[self postRequestWithURL: (NSString *) postArgs:(NSDictionary *) headerArgs: (NSDictionary *) ];

如何正确调用此方法？

url为：http://www.google.com/reader/api/0/edit-tag?

后参数是："a=user/-/state/com.google/read&ac=edit-tags&s=feed/%@&i=%@&T=%@", entry.link, entry.identifier, tokenString

和header是：

NSString *authHeader = [NSString stringWithFormat:@"GoogleLogin %@", authString];
[thttpReq addValue:authHeader forHTTPHeaderField:@"Authorization"];

[thttpReq addValue:@"Content-Type" forHTTPHeaderField:@"application/x-www-form-urlencoded"];

sompne可以帮助我在NSDictionary中插入postArgs和HeaderArgs吗？谢谢Paolo

Answer 1

尝试如下所示：

NSDictionary *postArgs = [NSDictionary dictionaryWithObjectsAndKeys: 
                            @"user/-/state/com.google/read", @"a",
                            @"edit-tags", @"ac",
                            [NSString stringWithFormat: @"feed/%@", entry.link], @"s",
                            [NSString stringWithFormat: @"%@", entry.identifier], @"i",
                            [NSString stringWithFormat: @"%@", tokenString], @"T",
                            nil];

NSDictionary *headerArgs = [NSDictionary dictionaryWithObjectsAndKeys: 
                             [NSString stringWithFormat: @"GoogleLogin %@", authString], @"Authorization",
                             @"application/x-www-form-urlencoded", @"Content-Type"
                             nil];

[self postRequestWithURL: @"http://www.google.com/reader/api/0/edit-tag"
                postArgs: postArgs
              headerArgs: headerArgs];

请注意，dictionaryWithObjectsAndKeys:后面的列表包含对象和键的交替，用逗号分隔，后跟最后一个nil，如上面的示例所示。

顺便说一句，这里的字典是自动发布的，所以你不必显式地发布它们。

Answer 2

您可以从阅读或文档开始。下面是你该怎么做：

NSString * feed = [NSString stringWithFormat: @"feed/%@&i=%@&T=%@", entry.link, entry.identifier, tokenString];
NSDictionary * parameters = [[NSDictionary alloc] initWithObjectsAndKeys: @"a", @"user/-/state/com.google/read", @"ac", @"edit-tags", @"s", feed, nil];