相关疑难解决方法(0)

我想收听调度到defaultCenter的所有通知.公共和私人.有谁知道我怎么做到这一点？

我正在使用下面的代码从UIWebView提取URL ：它工作正常，但是，用于WKWebView的相同代码不再起作用。谁能帮我？在WKWebView中播放的视频不是全屏播放，而是Inlineplacyback。

我的代码是：

 NotificationCenter.default.addObserver(self, selector: #selector(self.playerItemBecameCurrent(_:)), name: NSNotification.Name("AVPlayerItemBecameCurrentNotification"), object: nil)

 @objc func playerItemBecameCurrent(_ sender : NSNotification){
    let playerItem: AVPlayerItem? = sender.object as? AVPlayerItem
    if playerItem == nil {
        print("player item nil")
        return
    }
    // Break down the AVPlayerItem to get to the path
    let asset = playerItem?.asset as? AVURLAsset
    let url: URL? = asset?.url
    let path = url?.absoluteString

    print(path!,"video url")
}

回应网址：

https://r2---sn-po4g5uxa-5hql.googlevideo.com/videoplayback?txp=5531432&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Crypto%2Cmime%2Cmm 2Cms％2Cmv％2Cpcm2％2Cpl％2Cratebypass％2Crequiressl％2Csource％2Cexpire＆IP = 103.37.181.55＆ratebypass = YES＆ID =邻AM9UWIaxopyYZX4gikGuswG8EMi3dhH_PPBMIqY5cbXj＆到期= 1554400796＆amp; C = MWEB＆fvip = 4＆initcwndbps = …