Facebook SDK and Swift - Post a message and an image to Facebook

A previous post is deprecated:
SLComposeViewController - Post a message and an image to Facebook

So this example using the Facebook SDK for iOS is written. A share button is created to post a message and an image to Facebook. The steps are as below:

1. Include the FBSDK frameworks into an Xcode project and modify AppDelegate.swift:

See this tutorial: Facebook SDK and Swift - Create a Facebook Login Button

2. Modify ViewController.swift as:

import UIKit

import FBSDKLoginKit

import FBSDKShareKit

class ViewController: UIViewController{

    

    override func viewDidLoad() {

        super.viewDidLoad()

        

        let urlImage = NSURL(string: "https://upload.wikimedia.org/wikipedia/commons/0/0e/THSR_700T_Modern_High_Speed_Train.jpg")

        

        let imageView = UIImageView(frame: CGRectMake(0, 0, 200, 200))

        imageView.center = CGPoint(x: view.center.x, y: 200)

        imageView.image = UIImage(data: NSData(contentsOfURL: urlImage!)!)

        imageView.contentMode = UIViewContentMode.ScaleAspectFit

        view.addSubview(imageView)

        

        let content = FBSDKShareLinkContent()

        content.contentTitle = "Taiwan High Speed Rail. Posted with my iOS App."

        content.imageURL = urlImage

        

        let shareButton = FBSDKShareButton()

        shareButton.center = CGPoint(x: view.center.x, y: 500)

        shareButton.shareContent = content

        view.addSubview(shareButton)

    }

    

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

    }

}

Result:

Press the Share button.

Login and press the Share button.

The message and image are shown with the Facebook app.

Note: An HTTPS image URL is required for iOS9. If an HTTP URL is used instead, this error will happen:

App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.

This is because Apple has introduced App Transport Security (ATS) in iOS9. To allow the HTTP network connection, modify Info.plist by adding:

More details regarding ATS is here:

Working with Apple's App Transport Security

Apple will require HTTPS connections for iOS apps by the end of 2016

References:
Facebook SDK for iOS - Getting Started
SLComposeViewController - Post a message and an image to Facebook (Deprecated)
Facebook SDK and Swift - Create a Facebook Login Button
Facebook SDK and Swift - Display User Name and Profile Picture
Facebook SDK and Swift - Post a message using Graph API and post an image using FBSDKShareKit