Playing system sound without importing your own

I find this list of systemSoundID very useful for accessing the sound ID directly.
http://iphonedevwiki.net/index.php/AudioServices

For example, to play a key press tock sound.

#define systemSoundID    1104
AudioServicesPlaySystemSound (systemSoundID);

You'll also need to add the AudioToolbox framework in your project, and add #include <AudioToolbox.h> to your .m or .h file.

List of all system sounds: iOSSystemSoundsLibrary

After you import AVKit, you can play all this sounds with:

AudioServicesPlaySystemSound (systemSoundID);

You can use this for all default system audio.

Example, for the tap sound user this:

AudioServicesPlaySystemSound(1104);

For positive sounds, use this:

 AudioServicesPlaySystemSound(1054);

And, negative sounds use this:

 AudioServicesPlaySystemSound(1053);

The complete list you can see here.

This code plays apple system sound "Tock.aiff"..I believe you can play different system sounds using this

NSString *path = [[NSBundle bundleWithIdentifier:@"com.apple.UIKit"] pathForResource:@"Tock" ofType:@"aiff"];
SystemSoundID soundID;
AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:path], &soundID);
AudioServicesPlaySystemSound(soundID);
AudioServicesDisposeSystemSoundID(soundID);

See this thread

Apple's documentation on System sounds

https://developer.apple.com/documentation/audiotoolbox/system_sound_services