如何在 swift 3 中将滑动手势添加到 AVPlayer

Posted 2023-02-23

技术标签:

【中文标题】如何在 swift 3 中将滑动手势添加到 AVPlayer【英文标题】：How can I add Swipe Gesture to AVPlayer in swift 3 【发布时间】：2017-05-31 14:56:58 【问题描述】：

我正在使用 Swift 3，我想将滑动手势添加到 AVPlayer。有人告诉我，为了做到这一点，我必须使用另一个视图并将该视图带到视频的顶部 - 所以我做到了，这是我的代码：（但没有用 ) :(

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)

【问题讨论】：

这些是我所有的代码，我已经在另一个项目中测试了这些代码并且它们运行良好您是否已将sView 添加为子视图？是的，正如您在代码中看到的那样，我使用 self.view.bringSubview(toFront: sView) 将其带到了顶部我也将 sview 添加为子视图，但这里也没有得到答案是 self.view.addSubview(sView) 方法用AVPlayerViewController怎么样？ 【参考方案1】：

您的代码有两个错误。

1.在错误的控制器视图上添加手势视图。您不是在 AVPlayerViewController() 中添加手势视图，而是在初始控制器上添加，在呈现后将被 AVPlayerViewController() 覆盖。

3.选择器的目标错误 您在 let swipeRight = UISwipeGestureRecognizer(target: sView, action: #selector(self.respondToSwipeGesture)) 上对 target 做出错误假设。您正在将目标设置为 sView 并在 ViewController 上实现选择器方法。

这里的target表示选择器方法的目标对象。所以将目标更改为自我（即您的视图控制器）将使您的视图控制器成为选择器方法func respondToSwipeGesture(gesture: UIGestureRecognizer)的目标

请参考以下更正的代码。

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)

【讨论】：

它工作但我不能使用按钮！我可以将它们添加到 sview 中吗？只有在添加了 sview 之后才添加按钮！查看更新的代码请投票给我的问题【参考方案2】：

斯威夫特 4

不用sView也可以，只需在AVPlayerViewController的视图中添加手势识别器即可：

func playVideo() 
    let playerController = AVPlayerViewController()
    playerController.player = AVPlayer(url: URL(fileURLWithPath: videoPath))
    playerController.showsPlaybackControls = false
    playerController.view.isUserInteractionEnabled = true

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

    present(playerController, animated: false) 
        playerController.player?.play()
    


@objc func respondToSwipeGesture(gesture: UIGestureRecognizer) 
    print("swipe up")

【讨论】：

谢谢，它有帮助！不幸的是，在较新的 ios 上（我认为从 11 开始），滑动会导致在控制器中移动视频，并且似乎优先于 UISwipeGestureRecognizer。你知道有什么方法可以防止这种情况发生吗？【参考方案3】：

您可能需要正确初始化 sView。确保将所需的框架分配给 sView 并将其作为子视图添加到 self.view。

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 ...

【讨论】：

没有用请帮我获得礼物的声誉我不明白什么是问题。使用 AVPlayer 和正在工作的手势创建示例项目here 我在 GitHub 中检查了你的代码，但仍然不适合我，请帮我获得 50 声望好吧，在你的情况下，我唯一能做的就是调试你的代码示例，如果你与 *** 社区分享的话。好的，请稍等，今晚我将把所有代码放在这里（编辑问题）【参考方案4】：

你应该这样做：playerController.view.addSubview(self.sView) 而不是self.view.addSubview(sView)

你应该像这样将 self 添加为 tagart： let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(respondToSwipeGesture))

它会起作用的。这是我的控制台：https://i.stack.imgur.com/agaBx.jpg

【讨论】：

以上是关于如何在 swift 3 中将滑动手势添加到 AVPlayer的主要内容，如果未能解决你的问题，请参考以下文章

为啥滑动手势识别器在 swift 中会出错？

Swift - 移动到另一个场景时如何从场景中删除滑动手势？

如何在swift / SwiftUI中为滑动手势设置菜单栏图标的操作

Swift 3 中的滑动手势

在 Xcode 8.0 Swift 3.0 上检测手势

通过向左滑动选择 CollectionView 单元格（Swift 5）