Presents a App Invite dialog allowing the user to send a personalized invitation to their Facebook friends to install your app.
When called in the Unity Editor, a stub function is called instead.
public static void AppInvite ( Uri appLinkUrl, Uri previewImageUrl = null, FacebookDelegate<IAppInviteResult> callback = null )
The AppLink URL to identify your app and also used for deep-linking
A preview image URL for this invite. The suggested image size is 1,200 x 628 pixels with an image ratio of 1.9:1.
A delegate which will receive the result of the App Invite dialog
FB.Mobile.AppInvite( new Uri("https://fb.me/810530068992919"), new Uri("http://i.imgur.com/zkYlB.jpg"), AppInviteCallback );