Swift - How to pause a playing audio by clicking the same button? - ios

Question

So I have a list of audio files and when a cell is pressed it plays the audio. This works fine but I am not able to pause it by clicking the same cell again.
My code for the table view:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
{
let a = indexPath.section;
let b = indexPath.row;
var path = NSBundle.mainBundle().pathForResource(musicArray[b], ofType: "mp3")
var error:NSError?
do{
audioPlayer = try AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: path!))
}
catch
{
print("Something bad happened")
}
if (audioPlayer.playing)
{
audioPlayer.pause();
}
else
{
audioPlayer.play();
}
}
musicArray has the titles of the audio files

Answer 1

You're creating a new AVAudioPlayer every time you select the cell. You need to keep a reference to the previous one and tell that audio player to pause.

Answer 2

You can create a singleton object.
import AVFoundation
class SomeAudioManager: NSObject, AVAudioPlayerDelegate
{
class var sharedInstance: SomeAudioManager {
struct Static {
static var onceToken: dispatch_once_t = 0
static var instance: SomeAudioManager? = nil
}
dispatch_once(&Static.onceToken) {
Static.instance = SomeAudioManager()
}
return Static.instance!
}
func audioView(songname: String,format: String) {
let audioPlayer: AVAudioPlayer
do {
audioPlayer = try AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource(songname, ofType:format)!), fileTypeHint: AVFileTypeMPEGLayer3)
audioPlayer.delegate = self;
audioPlayer.play()
} catch {
// error
}
}
}
It will be alive through the whole app.
How to implement AVAudioPlayer Inside Singleton Method?
You can just create a singleton of the player so that you will always know if it's playing or not.