Enable iOS app to play sound in background

background_sound.swift

//
// MARK: - Step 1. Configuration
//

/*
You need to enable one feature in order to allow our app play sounds in *background* mode.

Select the Capabilities tab of project's main target, go to Background Modes section and select: 
**Audio, AirPlay and Picture in Picture

*/

//
// MARK: - Step 2. Code
//

// Copy code below at point when you start your audio system or similar.

do
{
	try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
}
catch
{
	print("err @ \(#function) -> No se puede establecer la categoría de sonido.")
}