Audio control - SwiftUI

In iOS apps written in SwiftUI you should always provide a pause or stop button for media. When using AVPlayer, you should use play and pause methods.

You should also make sure that audio is played through the correct channel. Use AVAudioSession in combination with AVAudioSessionCategory to achieve this.

The following channels are available:

• AVAudioSessionCategoryAmbient: use this channel if the sound is not important for the functioning of the app
• AVAudioSessionCategoryMultiRoute: use this channel if you are sending the sound to multiple output devices at the same time
• AVAudioSessionCategoryPlayAndRecord: use this channel for sound recording and playback
• AVAudioSessionCategoryPlayback: use this channel to play recorded music and other sounds that are important for the app's functioning
• AVAudioSessionCategoryRecord: use this channel for sound recording; other sound is muted
• AVAudioSessionCategorySoloAmbient: the default channel to play sound

// Set audio channel
try AVAudioSession.sharedInstance().setCategory(
    .playback, 
    mode: .default, 
    options: []
)

// Provide media controls
@State private var player = AVPlayer()
@State private var isPlaying = false

var body: some View {
    Button(isPlaying ? "Pause" : "Play") {
        if player.timeControlStatus == .playing {
            player.pause()
            isPlaying = false
        } else {
            player.play()
            isPlaying = true
        }
    }
}