Shared image open URL on tap

Question

I'm using - FBSDKShareKit (4.40.0): I want to share image on facebook. It should be tappable and should open website just like the Endomondo app does.

I've tried this code but url covers photo and they are not displayed:

    let sharePhoto = FBSDKSharePhoto()
    sharePhoto.image = someImage

    let content = FBSDKSharePhotoContent()
    content.photos = [sharePhoto];
    content.contentURL = URL(string: "https://facebook.com")!
    FBSDKShareDialog.show(from: self, with: content, delegate: nil)

How they do that?

What you are looking at does not seem to be a photo share to begin with - it’s likely just a shared _link_, that has title, description and thumbnail specified via OG meta tags. — 04FS, Mar 05 '19 at 15:02

score 0 · Answer 1 · answered Mar 05 '19 at 17:40

Use this to share on Facebook

import Social

func shareToFb(_ yourImage:UIImage!)

    {
     let facebookURL = URL(string: "fb://")
      if (UIApplication.shared.canOpenURL(facebookURL!)) {
      let vc = SLComposeViewController(forServiceType:SLServiceTypeFacebook)
             vc?.add(yourImage)
                    vc?.setInitialText("Initial text here.")
                    self.present(vc!, animated: true, completion: nil)
                }
                else {
                    let urlStr = "https://itunes.apple.com/us/app/workplace-by-facebook/id944921229?mt=8"
                    if #available(iOS 10.0, *) {
                        UIApplication.shared.open(URL(string: urlStr)!, options: [:], completionHandler: nil)

                    } else {
                        UIApplication.shared.openURL(URL(string: urlStr)!)
                    }
                }


            }

score 0 · Accepted Answer · answered Mar 05 '19 at 18:55

It appears that @04FS is right. It is just an og:image. They send the picture to the server and then generate a page with html meta og tags. (There is a redirect between so it was not obvious for me)

<meta property="fb:app_id" content="202423869273" />
<meta property="al:ios:url" content="endoapp://workouts" />
<meta property="al:ios:app_store_id" content="333210180" />
<meta property="al:ios:app_name" content="Endomondo Sports Tracker" />
<meta property="al:android:class" content="com.endomondo.android.EndoSplash" />
<meta property="al:android:package" content="com.endomondo.android" />
<meta property="al:android:app_name" content="Endomondo Sports Tracker" />
<meta property="og:type" content="endoapp:workout" />
<meta property="og:url" content="https://www.endomondo.com/users/11394222/workouts/1278713145?country=pl&lang=en&measure=metric" />
<meta property="og:title" content="0.02 km run" />
<meta property="og:description" content="(brak nazwy) ran 0.02 km using Endomondo." />
<meta property="og:locale" content="en_US" />
<meta property="og:site_name" content="Endomondo" />
<meta property="og:determiner" content="auto" />
<meta property="og:image" content="https://www.endomondo.com/resources/gfx/image/69040478/06074879f4cd011f6b7b8cfa028e146b/big.jpg" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />
<meta property="endoapp:duration" content="38" />
<meta property="endoapp:distance" content="0.02" />
<meta property="endoapp:sport" content="https://www.endomondo.com/facebook/sport/0?country=pl&lang=en&measure=metric" />
<meta property="endoapp:unit" content="km" />
<meta property="endoapp:maxspeed" content="6.4" />
<meta property="endoapp:avgspeed" content="1.5" />
<meta property="endoapp:avg_speed" content="39:16" />
<meta property="endoapp:avg_speed_unit" content="min/km" />
<meta property="endoapp:calories" content="2" />
<meta property="endoapp:route:latitude" content="54.19036" />
<meta property="endoapp:route:longitude" content="16.17868" />
<meta property="endoapp:route:altitude" content="0.01" />
<meta property="endoapp:route:latitude" content="54.19023" />
<meta property="endoapp:route:longitude" content="16.17856" />
<meta property="endoapp:route:altitude" content="0.01" />

Shared image open URL on tap

2 Answers2