swift share with
import UIKit
class ViewController: UIViewController {
    // share text
    @IBAction func shareTextButton(_ sender: UIButton) {
        // text to share
        let text = "This is some text that I want to share."
        // set up activity view controller
        let textToShare = [ text ]
        let activityViewController = UIActivityViewController(activityItems: textToShare, applicationActivities: nil)
        activityViewController.popoverPresentationController?.sourceView = self.view // so that iPads won't crash
        // exclude some activity types from the list (optional)
        activityViewController.excludedActivityTypes = [ UIActivityType.airDrop, UIActivityType.postToFacebook ]
        // present the view controller
        self.present(activityViewController, animated: true, completion: nil)
    }
    // share image
    @IBAction func shareImageButton(_ sender: UIButton) {
        // image to share
        let image = UIImage(named: "Image")
        // set up activity view controller
        let imageToShare = [ image! ]
        let activityViewController = UIActivityViewController(activityItems: imageToShare, applicationActivities: nil)
        activityViewController.popoverPresentationController?.sourceView = self.view // so that iPads won't crash
        // exclude some activity types from the list (optional)
        activityViewController.excludedActivityTypes = [ UIActivityType.airDrop, UIActivityType.postToFacebook ]
        // present the view controller
        self.present(activityViewController, animated: true, completion: nil)
    }
}
