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hackingwithswift p3 social media

延續p1的專案
延續使用navigator controller




import Social


viewDidload()內
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .action, target: self, action: #selector(shareTapped))



func shareTapped() {

//let vc = UIActivityViewController(activityItems: [imageView.image!], //applicationActivities: [])
//vc.popoverPresentationController?.barButtonItem = navigationItem.rightBarButtonItem
//present(vc, animated: true)

if let vc = SLComposeViewController(forServiceType: SLServiceTypeFacebook) {
vc.setInitialText("媽我在這發文了")
vc.add(imageView.image!)
vc.add(URL(string: "http://www.photolib.noaa.gov/nssl"))
present(vc, animated: true)

}

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