Using an Avplayer Returns a "Non-Multipath Connection" Error

AVPlayer not playing despite having correct URL

I have checked your code and discovered such a pattern:

• if I define and initialize audioPlayer before viewDidLoad - then audioPlayer works in 100% of cases (I worked with this audio)
• if I define and initialize audioPlayer as you (at pausePlayAudio) - sometimes it works, sometimes not.

Please, check this:

var audioPlayer = AVPlayer()

@IBAction func pausePlayAudio(_ sender: CustomButton) {
    let audioSourceURL: String = "[Site]/module_lesson_uploads/audios/"
    let audioString: String = audioSourceURL + (sender.paramaters["thisAudioURL"] as! String)
    let audioURL = URL(string: audioString)

    print(audioString)

    let playerItem = AVPlayerItem(url: audioURL!)
    self.audioPlayer = AVPlayer(playerItem: playerItem)

    self.audioPlayer.play()
}

SwiftUI - How do I Press button - Autoplay video with no controls - Do rest of button actions

Regarding the VideoPlayer and loading different content for it, you need to put the VideoPlayer inside the view hierarchy. Right now, you have it inside the Button's action, which means that even if you didn't have a compiler error, it would show up in your view.

Here's some code that loads different AVPlayers based on the state of number and autoplays the video:

struct ContentView: View {
    
    @State var number = 6
    @State var player = AVPlayer(url: URL(string: "https://media.w3.org/2010/05/sintel/trailer.mp4")!)
    
    var body: some View {
        VStack {
            VideoPlayer(player: player)
            Button(action: {
                number += 1
                if number >= 9 {
                    player = AVPlayer(url: URL(string: "https://media.w3.org/2010/05/sintel/trailer.mp4")!)
                } else {
                    player = AVPlayer(url: URL(string: "https://www.w3schools.com/html/movie.mp4")!)
                }
                player.play()
            }) {
                Text("Button")
            }
        }
    }
}

Regarding hiding the controls, you can't actually do that with VideoPlayer, but you can wrap AVPlayerViewController : https://stackoverflow.com/a/65928091/560942

AVPlayer won't let me access URL

I found your question after you commented on a question I had answered previously, so lets continue here :)

I can get your code working by combining my original answer to that question with the answer provided by @callam above so...give him the credit for the correct answer :)

To summarize, you need to:

1. Add a AVPlayerView to your Storyboard and connect it to your ViewController
2. Setup your ViewController
3. Manage App Transport Security and the outgoing connection.

In greater detail

1. Add a AVPlayerView to your Storyboard and connect it to your ViewController

Drag a AVKit Player View to your view in the storyboard

In your ViewController class, create an outlet for the view:

 @IBOutlet weak var playerView: AVPlayerView!

And connect it.

2. Setup your ViewController

Here is my code:

import Cocoa
import AVKit

class ViewController: NSViewController {

    @IBOutlet weak var playerView: AVPlayerView!

    override func viewDidLoad() {
        super.viewDidLoad()

        let fileURL = URL(string: "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4")
        let avAsset = AVURLAsset(url: fileURL!, options: nil)

        let playerItem = AVPlayerItem(asset: avAsset)
        let videoPlayer = AVPlayer(playerItem: playerItem)
        playerView.player = videoPlayer
        videoPlayer.play()
    }
}

Seems familiar no :)

Notice I create the videoPlayer right here, no need to for me to use the let playerView = self.playerView you mention in your comments.

If you just do these two steps, you end up with a player view that cannot play video and errors in your console. So you need to add the final piece to the puzzle, kindly provided by @callam above.

3. Manage App Transport Security and the outgoing connection.

First, if you cannot use a HTTPS connection you must allow HTTP connections in your info.plist file.

Here is my .plist file in its entirety

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleDevelopmentRegion</key>
    <string>$(DEVELOPMENT_LANGUAGE)</string>
    <key>CFBundleExecutable</key>
    <string>$(EXECUTABLE_NAME)</string>
    <key>CFBundleIconFile</key>
    <string></string>
    <key>CFBundleIdentifier</key>
    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>$(PRODUCT_NAME)</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0</string>
    <key>CFBundleVersion</key>
    <string>1</string>
    <key>LSMinimumSystemVersion</key>
    <string>$(MACOSX_DEPLOYMENT_TARGET)</string>
    <key>NSHumanReadableCopyright</key>
    <string>Copyright © 2017 :) </string>
    <key>NSMainStoryboardFile</key>
    <string>Main</string>
    <key>NSPrincipalClass</key>
    <string>NSApplication</string>
    <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
    </dict>
</dict>
</plist>

The important part being the NSAppTransportSecurity part

And then finally, you must enable Outgoing Connections (Client) under Capabilities of your project

If I do that, I end up with this:

But notice though, that I still see errors in the console.

Hope you are able to get to the same result following these steps :)

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