Question

我编写了以下代码，它将预定义的GraphAPI对象发送到我的iOS应用中的另一个Facebook用户。这很好用。

-(void)FacebookSendObjectWithIdentifier: (NSString *)objectIdentifier withObjectName:(NSString *)objectName withMessage:(NSString *)message withTitle:(NSString *)title withActionType:(NSString *)actionType runOnComplete:(void (^)(NSDictionary* request))completionBlock{

NSMutableDictionary* params =   [NSMutableDictionary dictionaryWithObjectsAndKeys:

                                 // Optional parameter for sending request directly to user
                                 // with UID. If not specified, the MFS will be invoked
                                 //@"RECIPIENT_USER_ID", @"to",

                                 // Give the action object request information
                                 actionType, @"action_type",
                                 objectIdentifier, @"object_id",
                                 nil];

[FBWebDialogs
 presentRequestsDialogModallyWithSession:nil
 message:message
 title:title
 parameters:params
 handler:^(FBWebDialogResult result, NSURL *resultURL, NSError *error) {
     if (error) {
         // Error launching the dialog or sending the request.
         NSLog(@"Error sending %@ request.", objectName);
     } else {
         if (result == FBWebDialogResultDialogNotCompleted) {
             // User clicked the "x" icon
             NSLog(@"User canceled %@ request.", objectName);
         } else {
             // Handle the send request callback
             NSDictionary *urlParams = [self parseURLParams:[resultURL query]];

             if (![urlParams valueForKey:@"request"]) {
                 // User clicked the Cancel button
                 NSLog(@"User canceled %@ request.", objectName);
             } else {
                 // User clicked the Send button
                 NSString *requestID = [urlParams valueForKey:@"request"];
                 NSLog(@"%@ request sent, request id: %@", objectName, requestID);

                 if (completionBlock)
                     completionBlock(urlParams);
             }
         }
     }
 }];
}

[self parseURLParams：[resultURL query]];在几个Facebook文档页面中实现如下：

- (NSDictionary*)parseURLParams:(NSString *)query {
NSArray *pairs = [query componentsSeparatedByString:@"&"];
NSMutableDictionary *params = [[NSMutableDictionary alloc] init];
for (NSString *pair in pairs) {
    NSArray *kv = [pair componentsSeparatedByString:@"="];
    NSString *val =
    [kv[1] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    params[kv[0]] = val;
}
return params;
}

返回时，完成块解析返回的urlParams并将它们保存到我们的数据库中以引用通过Facebook发送的对象。但是，这应该返回一个＆＃34;请求＆＃34;保存请求ID的参数和数组＆＃34;到＆＃34;它包含发送对象的人员的Facebook ID。相反，这会返回网址中的两个字段，＆＃34; request＆＃34;行为正常，＆＃34;到[0]＆＃34;而不是＆＃34;到＃34;作为NSString而不是NSArray，因为上面提供的方法将url参数解析为字符串而不是相应的对象，这将数组＆＃34;转换为＆＃34;进入＆＃34;到[0]＆＃34;的NSString。

我正在寻找一个更好的解决方案来解析来自Facebook的返回响应URL或更好的方式通过Facebook的API发送对象。最好是第一个选项，因为这是实现完成所缺少的唯一步骤。

谢谢。

正确解析来自Facebook请求API的结果URL

0 个答案: