How to stream audio from URL without downloading mp3 file on device

Question

How would I stream audio from a URL in Swift without downloading the mp3 file on the device? What do I need to import? Do I need certain libraries? Add anything to the info.plis

Answer 1

here you can go

 import AVFoundation

var progressTimer:Timer?
{
    willSet {
        progressTimer?.invalidate()
    }
}
var playerStream: AVPlayer?
var playerItem: AVPlayerItem?

func playerStream(urlStream : String) {
    if let playerStream = playerStream {
        if playerStream.isPlaying {
            stopProgressTimer()
            playerStream.pause() 
        } else {  
            startProgressTimer()
            playerStream.play()
        }  
    } else {
        if let urlStr = urlStream.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) {
            if let TempURL = URL.init(string: urlStr) {
                playerItem = AVPlayerItem(url: TempURL)
                playerStream = AVPlayer(playerItem: playerItem)
                NotificationCenter.default.addObserver(self, selector: #selector(playerItemDidPlayToEndTime), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: playerItem)
            } 
        } 
    } 
}

func playerItemDidPlayToEndTime() {
     stopProgressTimer()
     self.playProgressView.progress = 0.0
     if let playerStream = self.playerStream {
        playerStream.replaceCurrentItem(with: playerItem)
        playerStream.seek(to: kCMTimeZero)
       // playerStream.seek(to: .zero) swift 4.0
    } 
}

func stopProgressTimer() {
    progressTimer?.invalidate()
    progressTimer = nil
}

func startProgressTimer() {
    if #available(iOS 10.0, *) {
        progressTimer = Timer.scheduledTimer(withTimeInterval: 0.1, repeats: true){ [weak self] in
            self?.updateProgressTimer()
        }
    } else {
        progressTimer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(self.updateProgressTimer), userInfo: nil, repeats: true)
    }
}

@objc func updateProgressTimer() {
    if let playerItem = playerItem {
        if let pa = playerStream {
            let floatTime = Float(CMTimeGetSeconds(pa.currentTime()))
            let floatTimeDu = Float(CMTimeGetSeconds(playerItem.duration))

            playProgressView.progress = Double(floatTime / floatTimeDu)
        }
    }
}