CODEWITHSUNDEEP
iosswiftaudio
Chris Marshall
Chris Marshall

Reputation: 5332

How Can I Get A List of Available System Sounds in iOS?

I found this question, but it's a bit aged. It looks like that directory access is no longer available for the example app they recommend.

The Apple documentation doesn't seem to have what I need, either.

What I need is to be able to list the built-in sounds (not provide my own), and allow a user of my app to choose one to play.

Sounds simple enough, eh?

UPDATE:

Here is the relevant code in the example app mentioned below:

NSURL *directoryURL = [NSURL URLWithString:@"/System/Library/Audio/UISounds"];
NSArray *keys = [NSArray arrayWithObject:NSURLIsDirectoryKey];

NSDirectoryEnumerator *enumerator = [fileManager
                                     enumeratorAtURL:directoryURL
                                     includingPropertiesForKeys:keys
                                     options:0
                                     errorHandler:^(NSURL *url, NSError *error) {
                                         // Handle the error.
                                         // Return YES if the enumeration should continue after the error.
                                         return YES;
                                     }];

for (NSURL *url in enumerator) {
    NSError *error;
    NSNumber *isDirectory = nil;
    if (! [url getResourceValue:&isDirectory forKey:NSURLIsDirectoryKey error:&error]) {
        // handle error
    }
    else if (! [isDirectory boolValue]) {
        [audioFileList addObject:url];
    }
}

The problem is that the enumerator is always empty. I suspect this may be a security/sandbox issue.

Upvotes: 2

Views: 4019

Answers (1)

DonMag
DonMag

Reputation: 77423

Reading up on this, you can find code to get a list of system sound files - but only on a "jail break" device.

Based on this note on Apple's docs (link), it sounds like (sorry for the pun) we won't have much luck in trying to access the "internal" sound clips:

Note System-supplied alert sounds and system-supplied user-interface sound effects are not available to your iOS application. For example, using the kSystemSoundID_UserPreferredAlert constant as a parameter to the AudioServicesPlayAlertSound function will not play anything.

Upvotes: 3

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