playing sound files in resources folder

Question

I have some mp3 files in my resources folder, how can i play those mp3 files? I just know their name.

Answer 1

You can use the AVAudioPlayer. To get the URL for the files use NSBundles -URLForResource:withExtension: (or downward compatible alternatives, see Kennys answer):

NSURL *url = [[NSBundle mainBundle] URLForResource:@"myFile" withExtension:@"mp3"];
NSError *error = 0;
AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
// check error ...
[player play];
// ...

And don't forget to read the Multimedia Programming Guides section on using audio.

Answer 2

Just to supplement @Georg's answer.

As you can see from the doc, -URLForResource:withExtension: is available only since 4.0. As 3.x is still widespread, it's better to use the backward-compatible methods:

• By converting a path to NSURL:

  NSString* path = [[NSBundle mainBundle] pathForResource:@"myFile" ofType:@"mp3"];
  NSURL* url = [NSURL fileURLWithPath:path];
  ....
  

• or, by CoreFoundation methods:

  CFURLRef url = CFBundleCopyResourceURL(CFBundleGetMain(),
                                         CFSTR("myFile"), CFSTR("mp3"), NULL);
  ....
  CFRelease(url);