import UIKit
import SafariServices // ★追加

// ★SFSafariViewControllerDelegate追加
class ViewController: UIViewController, SFSafariViewControllerDelegate {

    // ★Button押した場合のメソッド
    @IBAction func openBtn(sender: AnyObject) {
        // ★開くURL
        let _url:NSURL = NSURL(string: "https://www.google.co.jp/")!
        // ★待ちに待った作成
        let _brow = SFSafariViewController(URL: _url, entersReaderIfAvailable: true)
        _brow.delegate = self
        // ★ほぼSafariを開く
        presentViewController(_brow, animated: true, completion: nil)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    // ★SFSafariViewControllerを閉じた際の処理
    func safariViewControllerDidFinish(controller: SFSafariViewController) {
        print("close")
    }
}