检测AVPlayer视频开始停止事件 [英] Detecting AVPlayer video start stop events
本文介绍了检测AVPlayer视频开始停止事件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是一段很好的简单avplayer代码,用于在队列中播放一小部分视频.我的问题.我实际上是想在队列中的视频之间暂停.有可能吗?
Here is nice simple avplayer piece of code playing a small collection of videos in a queue. My question. I actually want to pause between videos on my queue. Is it possible?
我确实注意到利率触发两次;状态会像通知一样触发一次.
I did note that rate fires twice; status fires just once as does notification.
import UIKit
import AVKit
import AVFoundation
class ViewController: UIViewController {
@IBOutlet weak var VideoView: UIView!
var player:AVQueuePlayer = AVQueuePlayer()
@IBAction func NextSlide(sender: AnyObject) {
player.play()
}
override func viewDidLoad() {
func NextSlide(sender: AnyObject) {
}
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let arrayOfPaths: [String] = ["http://192.100.1.1:8080/dino1.mov","http://192.100.1.1:8080/dino1.mov","http://192.100.1.1:8080/dino1.mov"]
var shots = [AVPlayerItem]()
for item in arrayOfPaths {
let url2adopt = NSURL(string: item)
let avAsset = AVURLAsset(URL: url2adopt!)
let shot = AVPlayerItem(asset: avAsset)
shots.append(shot)
}
player = AVQueuePlayer(items: shots)
let playerLayer = AVPlayerLayer(player: player)
playerLayer.frame = VideoView.layer.bounds
VideoView.layer.addSublayer(playerLayer)
player.addObserver(self, forKeyPath: "status", options: NSKeyValueObservingOptions.New, context: nil)
player.addObserver(self, forKeyPath: "rate", options: NSKeyValueObservingOptions.New, context: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "itemDidFinishPlaying:", name: AVPlayerItemDidPlayToEndTimeNotification, object: player.currentItem)
player.play()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// catch changes to status
override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) {
if (keyPath == "rate") {
print(player.rate)
}
if (keyPath == "status") {
print(player.status)
}
}
func itemDidFinishPlaying(notification:NSNotification) {
print("finished")
}
}
推荐答案
添加此行:
player.addObserver(
self, forKeyPath:"currentItem", options:.Initial, context:nil)
现在,每次正在播放的队列项目发生更改时,您都会收到通知.
Now you'll be notified every time there is a change in the queue item currently being played.
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