AVFAudio in Swift
In this blog, we are going to learn about the AVFAudio framework in swift. AVFAudio is a framework that helps in play, record, and process audio files in swift. In every other app, we need to audio-video support like watching video and listening to music or audiobook.
Please follow the below steps to integrate the AVFAudio framework into your iOS project.
Step – 1
In this step, Create a project and create three buttons for play, stop and repeat audio player.
Step – 2
Import the AVFoundation framework in your project
import AVFoundation
Step – 3
Now we will create a player from AVAudioPlayer class and outlet for the play, stop and repeat button and also create a variable for determining the repeat state
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var player = AVAudioPlayer() var repeatAudio = false @IBOutlet weak var repeatBtn: UIButton! @IBOutlet weak var playBtn: UIButton! @IBOutlet weak var stopBtn: UIButton! |
Step – 4
Now create a function for the tap of the Play Button and also the required URL from the audio file, after that handle the URL and assign delegates for the player.
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@IBAction func playBtnTapped(_ sender: UIButton) { let requiredUrl = NSURL(fileURLWithPath: Bundle.main.path(forResource: "peacok_ring", ofType: "wav")!) do { player = try AVAudioPlayer(contentsOf: requiredUrl as URL) player.delegate = self if(player.prepareToPlay()) { player.play() } }catch { print(error.localizedDescription) } } |
Step – 5
After that, we will create the stop and repeat button function in your project.
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@IBAction func repeatBtnTapped(_ sender: UIButton) { repeatAudio = !repeatAudio //repeatAudio = true } @IBAction func stopBtnTapped(_ sender: UIButton) { player.stop() } |
Step – 6
However, we will use AVAudioPlayerDelegate for using delegates of player.
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extension ViewController: AVAudioPlayerDelegate { func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) { if repeatAudio { player.play() } // Audio Played Successfully } func audioPlayerDecodeErrorDidOccur(_ player: AVAudioPlayer, error: Error?) { // Show Alert unable to play Audio guard let error = error else { return } let alert = UIAlertController(title: "Error", message: error.localizedDescription, preferredStyle: .alert) //handler: nil) let okAction = UIAlertAction(title: "Ok", style: .default) { (action) in self.dismiss(animated: true, completion: nil) } alert.addAction(okAction) self.present(alert, animated: true, completion: nil) } } |
Conclusion
We have integrated the audio player into our iOS App. For more information, please refer to the apple officials documentation from here.
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