Send image and text with OpenGraph FacebookSDK 4.4 in Swift

问题

I am working with Facebook SDK 4.4.0 in my Swift App. Because Facebook forced the removal of prefilled text, I am trying to use Open Graph to post on Facebook content and image from my app.

What I need to do is to send to the Facebook Timeline some text content and also a local image (not on the web). The image is local so it is within the app.

What I achieved until now is to send the local image OR the content, but I want to send both things together.

Here is the Swift code to send the image that works:

    @IBAction func facebookButton(sender: UIButton) {
        let photo : FBSDKSharePhoto = FBSDKSharePhoto()
        photo.image = UIImage(named: oldImageSaved! as String)
        photo.userGenerated = false

        var content : FBSDKSharePhotoContent = FBSDKSharePhotoContent()
        content.photos = [photo]

        let button:FBSDKShareButton = FBSDKShareButton()
        button.frame = CGRectMake(0, 0, 0, 0)
        button.shareContent = content
        button.sendActionsForControlEvents(UIControlEvents.TouchUpInside)
    }

And here is the OpenGraph code, that works, to send the content:

    @IBAction func facebookButton(sender: UIButton) {

            var current = NSUserDefaults.standardUserDefaults().objectForKey("currentPhrase") as? String
            var currentDescription = current!
            let ImageSaved = NSUserDefaults.standardUserDefaults().objectForKey("currentImageSaved") as? NSString

            // Create a FBSDKSharePhoto
            var photo : FBSDKSharePhoto = FBSDKSharePhoto()
            photo.image = UIImage(named: ImageSaved! as String)
            photo.userGenerated = false;

            let graphProperties : [NSObject : AnyObject]! = ["og:type": "fbtestapp:testing_test_app", "og:title":"Test App", "og:description": currentDescription]
            var graphObject : FBSDKShareOpenGraphObject = FBSDKShareOpenGraphObject(properties: graphProperties)

            // Create an action
            var action : FBSDKShareOpenGraphAction = FBSDKShareOpenGraphAction()

            action.actionType = "fbtestapp:merging"
            action.setObject(graphObject, forKey: "testing_test_app")

            // Create the content
            var content : FBSDKShareOpenGraphContent = FBSDKShareOpenGraphContent()
            content.action = action;
            content.previewPropertyName = "testing_test_app";

            FBSDKShareDialog.showFromViewController(self, withContent: content, delegate: nil)
    }

Any help on how can I send local image with some text content with OpenGraph in Swift will be really appreciated!

回答1:

You Open Graph actions needs to be approved for an additional capability: User Messages. You can read more on that in the Open Graph Docs.

This capability needs to be reviewed. When it is approved, you can use the message parameter on the FBSDKShareOpenGraphContent object.

Be aware: this is only allowed when the message is coming directly, and only, from the user. If you app is pre-filling this value, it will be blocked and you will not be able to use it.

来源：https://stackoverflow.com/questions/31812809/send-image-and-text-with-opengraph-facebooksdk-4-4-in-swift