How can I add Swipe Gesture to AVPlayer in swift 3

Question

I am using Swift 3 and I want to add swipe gesture to AVPlayer. Somebody told me that in order to do this I have to use another view and bring that view to the top of the video - So I did it, and here is my code: (But didn't work) :(

import UIKit
import AVKit
import AVFoundation

class ViewController: UIViewController , UIAlertViewDelegate {

let myFirstButton = UIButton()
let mySecondButton = UIButton()
var scoreLabel = UILabel()
var Player = AVPlayer()
var swipeGesture = UIGestureRecognizer()
var sView = UIView()


override func viewDidLoad() {
    super.viewDidLoad()


    ////////////
    sView.frame = self.view.frame
    self.view.addSubview(sView)
    self.view.bringSubview(toFront: sView)


    //////Swipe Gesture

    let swipeRight = UISwipeGestureRecognizer(target: sView, action: #selector(self.respondToSwipeGesture))
    swipeRight.direction = UISwipeGestureRecognizerDirection.right
    self.sView.addGestureRecognizer(swipeRight)

    let swipeLeft = UISwipeGestureRecognizer(target: sView, action: #selector(self.respondToSwipeGesture))
    swipeLeft.direction = UISwipeGestureRecognizerDirection.left
    self.sView.addGestureRecognizer(swipeLeft)

    let swipeUp = UISwipeGestureRecognizer(target: sView, action: #selector(self.respondToSwipeGesture))
    swipeUp.direction = UISwipeGestureRecognizerDirection.up
    self.sView.addGestureRecognizer(swipeUp)

    let swipeCustom = UISwipeGestureRecognizer(target: sView, action: #selector(self.respondToSwipeGesture))
    swipeCustom.direction = UISwipeGestureRecognizerDirection.init(rawValue: 200)
    self.sView.addGestureRecognizer(swipeCustom)


    let swipeDown = UISwipeGestureRecognizer(target: sView, action: #selector(self.respondToSwipeGesture))
    swipeDown.direction = UISwipeGestureRecognizerDirection.down
    self.sView.addGestureRecognizer(swipeDown)


    //////////////////////End Swipe Gesture

    let currentPlayerItem = Player.currentItem
    let duration = currentPlayerItem?.asset.duration
    let currentTime = Float(self.Player.currentTime().value)


        if currentTime >= 5 {

            print("OK")

        }else if currentTime <= 5 {

            print("NO")
        }

    NotificationCenter.default.addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: self.Player.currentItem, queue: nil, using: { (_) in
        DispatchQueue.main.async {
            self.Player.seek(to: kCMTimeZero)
            self.Player.play()
        }
    })



    /////////////
    NotificationCenter.default.addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: self.Player.currentItem, queue: nil, using: { (_) in
        DispatchQueue.main.async {
            self.Player.seek(to: kCMTimeZero)
            self.Player.play()
            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 5.0) {
                // check if player is still playing
                if self.Player.rate != 0 {
                    print("OK")
                    print("Player reached 5 seconds")
                }
            }
        }
    })

}


fileprivate var firstAppear = true
//////Swipe Gesture 
func respondToSwipeGesture(gesture: UIGestureRecognizer) {
    if let swipeGesture = gesture as? UISwipeGestureRecognizer {
        switch swipeGesture.direction {
        case UISwipeGestureRecognizerDirection.right:
            print("Swiped right")
        case UISwipeGestureRecognizerDirection.down:
            print("Swiped down")
        case UISwipeGestureRecognizerDirection.left:
            print("Swiped left")
        case UISwipeGestureRecognizerDirection.up:
            print("Swiped up")
        case UISwipeGestureRecognizerDirection.init(rawValue: 200):
            print("Swiped Custom")

        default:
            break
        }
    }
}    
/////////End Swipe Gesture
override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)

    let value = UIInterfaceOrientation.landscapeLeft.rawValue
    UIDevice.current.setValue(value, forKey: "orientation")
    if firstAppear {
        do {
            try playBackgroundMovieVideo()
            firstAppear = false
        } catch AppError.invalidResource(let NMNF6327, let m4v) {
            debugPrint("Could not find resource \(NMNF6327).\(m4v)")
        } catch {
            debugPrint("Generic error")
        }


    }
}
override var supportedInterfaceOrientations: UIInterfaceOrientationMask{
    return UIInterfaceOrientationMask.landscapeLeft
}
fileprivate func playBackgroundMovieVideo() throws {
    guard let path = Bundle.main.path(forResource: "NMNF6327", ofType:"m4v") else {
        throw AppError.invalidResource("NMNF6327", "m4v")

    }

    self.Player = AVPlayer(url: URL(fileURLWithPath: path))
    let playerController = AVPlayerViewController()
    playerController.showsPlaybackControls = false
    playerController.view.isUserInteractionEnabled = true
    playerController.player = self.Player
    playerController.viewWillLayoutSubviews()
    playerController.allowsPictureInPicturePlayback = false



    myFirstButton.setImage(#imageLiteral(resourceName: "pause.png"), for: UIControlState.normal)
    myFirstButton.frame = CGRect(x: 5, y: 5, width: 70, height: 50)
    self.myFirstButton.addTarget(self, action:#selector(self.myFirstButtonpressed), for: .touchUpInside)
    self.view.addSubview(myFirstButton)

    playerController.view.addSubview(myFirstButton)

    mySecondButton.setImage(#imageLiteral(resourceName: "Options.png"), for: UIControlState.normal)
    mySecondButton.frame = CGRect(x: 60, y: 5, width: 70, height: 50)
    self.mySecondButton.addTarget(self, action:#selector(self.mySecondButtonClicked), for: .touchUpInside)
    self.view.addSubview(mySecondButton)

    playerController.view.addSubview(mySecondButton)


    self.present(playerController, animated: false) {
        self.Player.play()
    }
}

func playerDidReachEnd(notification: NSNotification) {
    self.Player.seek(to: kCMTimeZero)
    self.Player.play()
}

func myFirstButtonpressed(sender: UIButton!) {
    myFirstButton.setImage(#imageLiteral(resourceName: "Play.png"), for: UIControlState.normal)

    let alertView = UIAlertView();
    alertView.addButton(withTitle: "Continue");
    alertView.delegate=self;
    alertView.addButton(withTitle: "restart");
    alertView.addButton(withTitle: "Middle");
    alertView.title = "PAUSE";
    alertView.message = "";
    alertView.show();

    let playerController = AVPlayerViewController()
    playerController.viewWillLayoutSubviews()
    self.present(playerController , animated: true)
    self.Player.pause()

}

func mySecondButtonClicked(){

}





func alertView(_ alertView: UIAlertView, clickedButtonAt buttonIndex: Int) {


    if buttonIndex == 0
{

    self.Player.play()
    myFirstButton.setImage(#imageLiteral(resourceName: "pause.png"), for: UIControlState.normal)
    print("Continue")


}

    else if buttonIndex == 1 {
    self.Player.seek(to: kCMTimeZero)
     self.Player.play()
     myFirstButton.setImage(#imageLiteral(resourceName: "pause.png"), for: UIControlState.normal)


    }
    ////Middle
else if buttonIndex == 2 {
    myFirstButton.setImage(#imageLiteral(resourceName: "pause.png"), for: UIControlState.normal)
    let timeScale = self.Player.currentItem?.asset.duration.timescale;
    let time = CMTimeMakeWithSeconds( +9 , timeScale!)
    self.Player.seek(to: time, toleranceBefore: kCMTimeZero, toleranceAfter: kCMTimeZero)
    self.Player.play()
    }

}

override var shouldAutorotate: Bool{
    return false
}
func update() {
    myFirstButton.isHidden=false
}

}


enum AppError : Error {
case invalidResource(String, String)
    }

Answer 1

Probably you need to initialize your sView properly. Make sure you assigned needed frame to sView and added it to self.view as a subview.

override func viewDidLoad() {
    super.viewDidLoad()

    sView.frame = self.view.frame
    self.view.addSubview(sView)
    self.view.bringSubview(toFront: sView)

    // add you gestures to sView here ...
}

Answer 2

You should do this:playerController.view.addSubview(self.sView) instead of self.view.addSubview(sView)

And you should add self as tagart just like this: let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(respondToSwipeGesture))

It will work . This is my console:https://i.stack.imgur.com/agaBx.jpg

Answer 3

There are two mistakes on your code.

1. Adding gesture view on wrong controller's view. Instead of adding gesture view to AVPlayerViewController() you were adding on initial controller, which will get covered by AVPlayerViewController() after presenting.

3. Wrong selector's target You were making false assumption about target on let swipeRight = UISwipeGestureRecognizer(target: sView, action: #selector(self.respondToSwipeGesture)) . You were setting target to sView and implementing selector method on ViewController.

Here target means the target object for selector method. So Changing target to self (i.e. your view controller) will make your view controller a target for selector method func respondToSwipeGesture(gesture: UIGestureRecognizer)

please refer the following corrected code.

import UIKit
import AVKit
import AVFoundation

class ViewController: UIViewController , UIAlertViewDelegate {

let myFirstButton = UIButton()
let mySecondButton = UIButton()
var scoreLabel = UILabel()
var Player = AVPlayer()
var swipeGesture = UIGestureRecognizer()
var sView = UIView()


override func viewDidLoad() {
    super.viewDidLoad()


    let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(self.respondToSwipeGesture))
    swipeRight.direction = UISwipeGestureRecognizerDirection.right
    self.sView.addGestureRecognizer(swipeRight)

    let swipeLeft = UISwipeGestureRecognizer(target: self, action: #selector(self.respondToSwipeGesture))
    swipeLeft.direction = UISwipeGestureRecognizerDirection.left
    self.sView.addGestureRecognizer(swipeLeft)

    let swipeUp = UISwipeGestureRecognizer(target: self, action: #selector(self.respondToSwipeGesture))
    swipeUp.direction = UISwipeGestureRecognizerDirection.up
    self.sView.addGestureRecognizer(swipeUp)

    let swipeCustom = UISwipeGestureRecognizer(target: self, action: #selector(self.respondToSwipeGesture))
    swipeCustom.direction = UISwipeGestureRecognizerDirection.init(rawValue: 200)
    self.sView.addGestureRecognizer(swipeCustom)


    let swipeDown = UISwipeGestureRecognizer(target: self, action: #selector(self.respondToSwipeGesture))
    swipeDown.direction = UISwipeGestureRecognizerDirection.down
    self.sView.addGestureRecognizer(swipeDown)


    //////////////////////End Swipe Gesture

    let currentPlayerItem = Player.currentItem
    let duration = currentPlayerItem?.asset.duration
    let currentTime = Float(self.Player.currentTime().value)


    if currentTime >= 5 {

        print("OK")

    }else if currentTime <= 5 {

        print("NO")
    }

    NotificationCenter.default.addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: self.Player.currentItem, queue: nil, using: { (_) in
        DispatchQueue.main.async {
            self.Player.seek(to: kCMTimeZero)
            self.Player.play()
        }
    })



    /////////////
    NotificationCenter.default.addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: self.Player.currentItem, queue: nil, using: { (_) in
        DispatchQueue.main.async {
            self.Player.seek(to: kCMTimeZero)
            self.Player.play()
            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 5.0) {
                // check if player is still playing
                if self.Player.rate != 0 {
                    print("OK")
                    print("Player reached 5 seconds")
                }
            }
        }
    })

}


fileprivate var firstAppear = true
//////Swipe Gesture
func respondToSwipeGesture(gesture: UIGestureRecognizer) {
    if let swipeGesture = gesture as? UISwipeGestureRecognizer {
        switch swipeGesture.direction {
        case UISwipeGestureRecognizerDirection.right:
            print("Swiped right")
        case UISwipeGestureRecognizerDirection.down:
            print("Swiped down")
        case UISwipeGestureRecognizerDirection.left:
            print("Swiped left")
        case UISwipeGestureRecognizerDirection.up:
            print("Swiped up")
        case UISwipeGestureRecognizerDirection.init(rawValue: 200):
            print("Swiped Custom")

        default:
            break
        }
    }
}
/////////End Swipe Gesture
override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)

    let value = UIInterfaceOrientation.landscapeLeft.rawValue
    UIDevice.current.setValue(value, forKey: "orientation")
    if firstAppear {
        do {
            try playBackgroundMovieVideo()
            firstAppear = false
        } catch AppError.invalidResource(let NMNF6327, let m4v) {
            debugPrint("Could not find resource \(NMNF6327).\(m4v)")
        } catch {
            debugPrint("Generic error")
        }


    }
}
override var supportedInterfaceOrientations: UIInterfaceOrientationMask{
    return UIInterfaceOrientationMask.landscapeLeft
}
fileprivate func playBackgroundMovieVideo() throws {
    guard let path = Bundle.main.path(forResource: "NMNF6327", ofType:"m4v") else {
        throw AppError.invalidResource("NMNF6327", "m4v")

    }

    self.Player = AVPlayer(url: URL(fileURLWithPath: path))
    let playerController = AVPlayerViewController()
    playerController.showsPlaybackControls = false
    playerController.view.isUserInteractionEnabled = true
    playerController.player = self.Player
    playerController.viewWillLayoutSubviews()
    playerController.allowsPictureInPicturePlayback = false



    myFirstButton.setImage(#imageLiteral(resourceName: "pause.png"), for: UIControlState.normal)
    myFirstButton.frame = CGRect(x: 5, y: 5, width: 70, height: 50)
    self.myFirstButton.addTarget(self, action:#selector(self.myFirstButtonpressed), for: .touchUpInside)
    self.view.addSubview(myFirstButton)


    mySecondButton.setImage(#imageLiteral(resourceName: "Options.png"), for: UIControlState.normal)
    mySecondButton.frame = CGRect(x: 60, y: 5, width: 70, height: 50)
    self.mySecondButton.addTarget(self, action:#selector(self.mySecondButtonClicked), for: .touchUpInside)
    self.view.addSubview(mySecondButton)


    sView.frame = self.view.frame
    playerController.view.addSubview(sView)
    playerController.view.bringSubview(toFront: sView)

    // ****** buttons are added after sview ********** 
    playerController.view.addSubview(myFirstButton)

    playerController.view.addSubview(mySecondButton)

    self.present(playerController, animated: false) {
        self.Player.play()
    }
}

func playerDidReachEnd(notification: NSNotification) {
    self.Player.seek(to: kCMTimeZero)
    self.Player.play()
}

func myFirstButtonpressed(sender: UIButton!) {
    myFirstButton.setImage(#imageLiteral(resourceName: "Play.png"), for: UIControlState.normal)

    let alertView = UIAlertView();
    alertView.addButton(withTitle: "Continue");
    alertView.delegate=self;
    alertView.addButton(withTitle: "restart");
    alertView.addButton(withTitle: "Middle");
    alertView.title = "PAUSE";
    alertView.message = "";
    alertView.show();

    let playerController = AVPlayerViewController()
    playerController.viewWillLayoutSubviews()
    self.present(playerController , animated: true)
    self.Player.pause()

}

func mySecondButtonClicked(){

}





func alertView(_ alertView: UIAlertView, clickedButtonAt buttonIndex: Int) {


    if buttonIndex == 0
    {

        self.Player.play()
        myFirstButton.setImage(#imageLiteral(resourceName: "pause.png"), for: UIControlState.normal)
        print("Continue")


    }

    else if buttonIndex == 1 {
        self.Player.seek(to: kCMTimeZero)
        self.Player.play()
        //myFirstButton.setImage(#imageLiteral(resourceName: "pause.png"), for: UIControlState.normal)


    }
        ////Middle
    else if buttonIndex == 2 {
       myFirstButton.setImage(#imageLiteral(resourceName: "pause.png"), for: UIControlState.normal)
        let timeScale = self.Player.currentItem?.asset.duration.timescale;
        let time = CMTimeMakeWithSeconds( +9 , timeScale!)
        self.Player.seek(to: time, toleranceBefore: kCMTimeZero, toleranceAfter: kCMTimeZero)
        self.Player.play()
    }

}

override var shouldAutorotate: Bool{
    return false
}
func update() {
    myFirstButton.isHidden=false
}

 }


enum AppError : Error {
case invalidResource(String, String)
}