在应用程序内共享fb图像和消息内容无法使用FBSDKShareDialog

Question

我使用以下代码在fb时间轴上使用FBSDK开放图形对象和FBSDK打开图形内容共享图片和一些消息.但是下面的代码什么也没做,没有对话框,也没有发布任何内容到timeline.am我缺少此代码中的任何内容或此代码在模拟器中不起作用？

- (IBAction)shareButtonPressed:(id)sender {
    NSString *contentDesc=@"abcdcccdcc";
    NSString *title=[NSString stringWithFormat:@"%@ \n asd %@, asd %@",self.nameLabel.text,_fromDate.text,_toDate.text];

    FBSDKSharePhoto *photo = [[FBSDKSharePhoto alloc] init];
    photo.image = _profilePic.image;
    photo.userGenerated = YES;

    // Create an object
    NSDictionary *properties = @{
                                @"og:type": @"memories.memory",
                                 @"og:title":title ,
                                 @"og:description":contentDesc

                                 };
    FBSDKShareOpenGraphObject *object = [FBSDKShareOpenGraphObject  objectWithProperties:properties];

    // Create an action
    FBSDKShareOpenGraphAction *action = [[FBSDKShareOpenGraphAction alloc] init];
    action.actionType = @"memories.view";
    [action setObject:object forKey:@"memories.memory"];

    // Add the photo to the action
    [action setPhoto:photo forKey:@"image"];

    // Create the content
    FBSDKShareOpenGraphContent *content = [[FBSDKShareOpenGraphContent alloc] init];
    content.action = action;
    content.previewPropertyName = @"memories.memory";

    [FBSDKShareDialog showFromViewController:self
                                 withContent:content
                                    delegate:nil];   
}

在委托方法中

-(void)sharer:(id<FBSDKSharing>)sharer didFailWithError:(NSError *)error
{


    NSLog(@"%@",error);
}

错误日志打印如下

Error Domain=com.facebook.sdk.share Code=2 "The operation couldn’t be completed. (com.facebook.sdk.share error 2.)" UserInfo=0x7faec97bb660 {com.facebook.sdk:FBSDKErrorArgumentValueKey=<FBSDKShareOpenGraphContent: 0x7faecbc16740>, com.facebook.sdk:FBSDKErrorDeveloperMessageKey=Feed share dialogs support FBSDKShareLinkContent., com.facebook.sdk:FBSDKErrorArgumentNameKey=shareContent}

Answer 1

改成[action setPhoto:photo forKey:@"image"];​[object setPhoto:photo forKey:@"og:image"];