I've a big problem with a custom sounds in remote notifications.
This is my scenario:
I've two types of notifications each one with a custom sound. The sound, plays like a charm, when my app is inactive or in background, and the OS shows the notification in notification center banner-alert.
When the notification is received in foreground state, I process the notification, extract the aps sound element and I play the sound via AVAudioPlayer:
func playSound(_ sound: String) {
myLog("Let's play sound \(sound)")
// Plays new sound file
DispatchQueue.main.async {
// Stops last player if playing
if (self.soundPlayer != nil) {
if (self.soundPlayer.isPlaying) {
self.soundPlayer.stop()
}
}
do {
let path = Bundle.main.path(forResource: sound, ofType:nil)!
let url = URL(fileURLWithPath: path)
self.soundPlayer = try AVAudioPlayer(contentsOf: url)
self.soundPlayer.delegate = self
if (self.soundPlayer.prepareToPlay()) {
self.soundPlayer.play()
}
} catch let error {
myLog("Error playing .caf file: \(error)")
}
}
}
And here start the problem. If the app returns to background - inactive when my player code is executed the OS alert in notification center never plays again the custom sounds.
Summarizing:
App inactive - background it receives notification -> Custom sounds plays ok.
App foreground it receives notification -> code plays sound via playSound function then if app receives other notification in background-inactive state OS plays default notification sound.
Thanks in advance.
