共享Web链接从ios使用FBShareDialog或SLComposeViewController不获取图像从Web链接

Question

我正在使用FBShareDialog和共享SLComposeViewController共享web链接，web链接仅托管在我的服务器上，并且在该网页上，所有facebook元标记都已正确设置，如下所示：

<meta property="fb:app_id" content="MY_APP_ID">
    <meta property="og:url" content="[http://example.com/share/?ODk0][1]">
    <meta property="og:type" content="article">
    <meta property="og:title" content="I Created This With App - The Office">
    <meta property="og:description" content="NOOOO!">
    <meta property="og:image" content="http://example.com/upload/large/5971ed74a0e52.png">
    <meta property="og:image:width" content="800">
    <meta property="og:image:height" content="420">
    <meta property="og:site_name" content="My App Name">

当我分享下面的链接http://example.com/share/?ODk0

直接从facebook然后它获取图片中提到的og：图像元标签和所有工作...当我试图测试与https://developers.facebook.com/tools/debug/sharing/的链接时，它也显示一切都是正确的。

但当我使用以下代码从我的应用程序共享此链接时：

let content = FBSDKShareLinkContent.init()
            content.contentURL = URL.init(string: "http://example.com/share/?ODk0")
            let dialog = FBSDKShareDialog.init()
            dialog.fromViewController = parentViewController
            dialog.shareContent = content
            dialog.mode = .shareSheet
            dialog.show()

有人能在这个问题上帮我吗？

谢谢。

Answer 1

        let shareURL = String.init(format: "%@f-%@", SHAREURL, base64!)
        let content = FBSDKShareLinkContent()
        content.contentURL = NSURL(string: shareURL)! as URL
        print("facebook content url :\(content.contentURL)")
        let dialog = FBSDKShareDialog()
        dialog.fromViewController = self
        dialog.shareContent = content
        dialog.delegate = self
        dialog.mode = .feedWeb
        if dialog.canShow() {
            dialog.show()
        }

使用上面的代码，我终于成功了。