iOS Airplay - “在电视上播放”

Question

我已使用此代码显示了播放按钮

var airplayButton: UIBarButtonItem!
let airView: MPVolumeView = MPVolumeView()
airView.showsRouteButton = true
airView.showsVolumeSlider = false
airView.sizeToFit()
airView.tintColor = UIColor.blackColor()

airplayButton = UIBarButtonItem(customView: airView)
airplayButton.tintColor = UIColor.whiteColor()

现在，我想要显示一个屏幕。 iOS Airplay框架中是否有任何默认方法可以显示它。或者我必须自己设计屏幕。此外，没有代表可以验证设备何时连接，并且电影通过iOS设备在AppleTV上开始流式传输。我只有一个变量来检查，即 externalPlaybackActive

问题是如果我使用变量它不是有效的解决方案，因为我可以在播放期间从Control连接airplay。如果电影在AppleTV上播放，我不想在每秒后运行计时器来检查。有更好的想法吗？

  

此视频正在“Apple TV”上播放

喜欢这个

Answer 1

这就是我实现它的方式。它就像一个魅力！

Dim TP As New TabPage
TP.Text = "   Payment    . "
form1.TabControlEx1.TabPages.Add(TP)
form1.TabControlEx1.SelectedTab = TP
Dim child As New FastPayment
child.TopLevel = False 
child.FormBorderStyle = Windows.Forms.FormBorderStyle.None
child.Dock = DockStyle.Fill
TP.Controls.Add(child)
child.Show()

//设置AirplayView

//Airplay constants

private var observerContextAirplay = 1

private var propertyToObserveAirplay = "externalPlaybackActive"

 // MARK: AirPlay Key-value Observing

    func startObservingForAirPlayStatusChanges()
    {
        self.player.moviePlayer.addObserver(self, forKeyPath: propertyToObserveAirplay, options: .New, context: &observerContextAirplay)
    }

    func stopObservingForAirPlayStatusChanges()
    {
        self.player.moviePlayer.removeObserver(self, forKeyPath: propertyToObserveAirplay)
    }

    override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) {
        if context == &observerContextAirplay {
            if self.player.moviePlayer.externalPlaybackActive == true
            {                    
                self.setUpAirPlayView()
            }
            else if self.player.moviePlayer.externalPlaybackActive == false
            {
                self.resetPlayerView()
            }

        }
        else {
            super.observeValueForKeyPath(keyPath, ofObject: object, change: change, context: context)
        }
    }

Answer 2

您好像正在使用AVPlayerViewController，其contentOverlayView UIView属性位于视频播放器和控件之间。

您可以首先在externalPlaybackActive上放置一个属性观察者，以了解AirPlay播放何时开始。一旦该值为true，请初始化您的UIView，将其添加为您的播放器contentOverlayView的子视图，然后将其删除。

let subview = UIView() // your view you want to show when AirPlay is active
subview.frame = CGRect(...)
playerVC.contentOverlayView?.addSubview(subview)
playerVC.contentOverlayView?.bringSubviewToFront(subview)