使用批量请求在Facebook上上传多张照片

Question

我参考以下链接完成了以下代码,以创建在Facebook上传多张照片的批量请求.

我有一些解决方案可以通过这个Facebook图形API在Facebook上传多张照片.

码:

    NSString *jsonRequest1 = @"{ \"method\": \"POST\", \"relative_url\": \"me/photos\" , \"body\": \"Hello 1\", \"attached_files\": \"file1\" }";
    NSString *jsonRequest2 = @"{ \"method\": \"POST\", \"relative_url\": \"me/photos\" , \"body\": \"Hello 2\", \"attached_files\": \"file2\" }";
    NSString *jsonRequestsArray = [NSString stringWithFormat:@"[ %@, %@ ]", jsonRequest1, jsonRequest2];
    NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:jsonRequestsArray,@"batch",nil];
    [params setObject:UIImagePNGRepresentation(self.image1) forKey:@"file1"];
    [params setObject:UIImagePNGRepresentation(self.image2) forKey:@"file2"];
    [objFacebook requestWithGraphPath:@"me" andParams:params andHttpMethod:@"POST" andDelegate:self];

现在,当我运行此代码时,我得到以下输出.

结果词典 - (void)request:(FBRequest *)request didLoad:(id)result

(
        {
        body = "{\"error\":0,\"error_description\":\"File file1 has not been attached\"}";
        code = 400;
        headers =         (
                        {
                name = "HTTP/1.1";
                value = "400 Bad Request";
            },
                        {
                name = "Content-Type";
                value = "text/javascript; charset=UTF-8";
            }
        );
    },
        {
        body = "{\"error\":0,\"error_description\":\"File file2 has not been attached\"}";
        code = 400;
        headers =         (
                        {
                name = "HTTP/1.1";
                value = "400 Bad Request";
            },
                        {
                name = "Content-Type";
                value = "text/javascript; charset=UTF-8";
            }
        );
    }
)

我不知道这些文件如何附加..任何人都可以帮我弄清楚这个问题.

我的代码有任何变化,请告诉我.

提前致谢...

Answer 1

您错误地将二进制文件添加到字典中。看一下Facebook 示例应用程序中的文件上传方法。您应该能够轻松地将 Facebook 的示例代码采用到您的应用程序中。

/** 
 * Upload a photo.
 */
-(IBAction)uploadPhoto:(id)sender 
{
  NSString *path = @"http://www.facebook.com/images/devsite/iphone_connect_btn.jpg";
  NSURL *url = [NSURL URLWithString:path];
  NSData *data = [NSData dataWithContentsOfURL:url];
  UIImage *img  = [[UIImage alloc] initWithData:data];

  NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                 img, @"picture",
                                 nil];
  [_facebook requestWithMethodName:@"photos.upload"
                         andParams:params
                     andHttpMethod:@"POST"
                       andDelegate:self];
  [img release];
}