Почему вы используете основной поток для фоновых операций.Обновляйте свой пользовательский интерфейс только с кодом Dispatch.main.async
:
Попробуйте это на физическом устройстве (проверено и работает)
import AVFoundation
for object in objects {
DispatchQueue.global(qos: .background).async {
sendObjectToServer(object)
}
}
var player: AVAudioPlayer?
func playSound() {
guard let url = Bundle.main.url(forResource: "sound", withExtension: "mp3") else { return }
do {
try AVAudioSession.sharedInstance().setCategory(.playback, mode: .default)
try AVAudioSession.sharedInstance().setActive(true)
/* The following line is required for the player to work on iOS 11. Change the file type accordingly*/
player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.mp3.rawValue)
/* iOS 10 and earlier require the following line:
player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileTypeMPEGLayer3) */
guard let player = player else { return }
player.play()
} catch let error {
print(error.localizedDescription)
}
}
func sendObjectToServer(object: Object) {
URLSession.shared.dataTask(with url: object.url) {(data,response,error) in
// Custom Logic
playSound()
}
}