Question

我有一个应用程序，我必须在Facebook的墙上发布图像现在的问题是我使用了GraphAPI facebook，我必须通过照片的链接，但我的iPhone上有照片，而不是任何服务器。
那么如何在没有图像URL的情况下使用图像和其他参数发布墙？

Answer 1

您可以使用NSURLConnection ASIHttpRequest库从网址下载图片。

You will have to do the following:
1. Create a NSUrlConnection and implement the delegate methods
2. Pass the url in your request and you will get the data in -(void)connectionDidFinishLoading: (NSURLConnection *)connection
3. You can then create a UIImage from this data using UIImage *image = [[UIImage alloc] initWithData:activeDownloadData];

Answer 2

FBStreamDialog *dialog = [[[FBStreamDialog alloc] init] autorelease];
dialog.userMessagePrompt = @"Enter your message:";

NSDictionary *params = nil;
[[FBRequest requestWithDelegate:self] call:@"facebook.photos.upload" params:params dataParam:(NSData*)wallImage];
[dialog show];

Answer 3

编辑：

-

实际上，将图片发布到Facebook墙上必须来自网络。所以你必须先上传图片;也许尝试第二方服务，如twitpic或其他东西，返回响应网址并将其放在你的参数中。

-

您可以使用以下内容将图片发布到Facebook。您也可以将UIImage替换为物理网址。

NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                               kAppID, @"app_id",
                               @"http://bit.ly/dDZQXt", @"link",
                               @"www.has.to.be.web.based.com", @"picture",
                               EasyStrings(@"Mobile Profiles for ",device), @"name",
                               EasyStrings(@"Current Profile: ",currProfile), @"caption",
                               @"I am using Mobile Profiles for iPhone, iPod touch and iPad.", @"description",
                               message,  @"message",
                               nil];
[_facebook dialog:@"feed"
        andParams:params
      andDelegate:self];

它的样子：

enter image description here

房屋图标从[UIImage imageNamed:@"something.png"]加载。

Answer 4

我修改了facebook演示应用。它使用模态视图从手机中选择图片。您可以使用此代码，授予您必须添加两个按钮（即selectPicture按钮和uploadPhoto按钮） - 还要确保添加到.h文件中的UIViewController：

/**
 * Upload a photo.
 */
- (IBAction)uploadPhoto:(id)sender {

  NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                 image, @"picture",
                                 nil];

  [_facebook requestWithGraphPath:@"me/photos"
                        andParams:params
                        andHttpMethod:@"POST"
                        andDelegate:self];

}

/**
 * Select a photo.
 */
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    image = [info objectForKey:UIImagePickerControllerOriginalImage];
    [self dismissModalViewControllerAnimated:YES];
}

- (void) imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [self dismissModalViewControllerAnimated:YES];
}

- (IBAction) selectPicture:(UIButton *)sender;
{
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    [self presentModalViewController:picker animated:YES];
    [picker release];
}

Answer 5

尝试使用BMSocialShare这是我写的一个简单的lib。它正是你想要的。上传一些本地图像（甚至打开用户添加注释的对话框）到用户的墙上：

BMFacebookPost *post = [[BMFacebookPost alloc] initWithImage:[UIImage imageNamed:@"image.png"]];
[[BMSocialShare sharedInstance] facebookPublish:post];

如何在Facebook上使用存储在iPhone上的图像进行墙贴？

5 个答案:

编辑：

它的样子：