Clever Geek Handbook

IOS: Objective -C How do I change the alert sound payload when an app is in the background?

In my application, I am letting the user change the sound for push notification

.

When the user selects Sound-A

or Sound-B

, it plays correctly when the app is in active mode.

But when the app is in background mode

, it always plays Sound-A

because it is push notification payload sound

set toSound-A. 

{
   "aps": {
   "alert": "My News!",
   "sound": "sound_a.mp3",
    }
 }

How can I overwrite it with user selected sound.

I recorded the selected audio in app preferences

and I tried to replace it but it doesn't work.

NSString *soundName = [self getSoundTrack];
[pushArray setObject:soundName forKey:@"sound"];
+3


source to share


3 answers


you can play sound alert in the background using AVplayer. Work great in my application.



@property (strong, nonatomic) AVAudioPlayer *audioPlayer;


 - (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
 _audioPlayer=nil;
  if(application.applicationState == UIApplicationStateInactive || application.applicationState == UIApplicationStateBackground ){
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
                                     pathForResource:@"soundName"
                                     ofType:@"mp3"]];
NSError *error;
_audioPlayer = [[AVAudioPlayer alloc]
                initWithContentsOfURL:url
                error:&error];
if (error)
{
    NSLog(@"Error in audioPlayer: %@",
    [error localizedDescription]);
} else {
    [_audioPlayer prepareToPlay];
}
[_audioPlayer play];
}
+1


source


You cannot change the sound from your ios app while receiving in the background. The sound to be played is sent in the payload. If you want to play the audio that is selected by the user, you can also save this data in the backend.



0


source


If you want to programmatically change the sound using iOS client code, you can send a silent push notification server instead, and then send a local notification with a customized sound when your app wakes up in the background.

However, the simpler solution is what others say. Refresh the server when user changes sound settings.

0


source






More articles:


All Articles