how to play an MP3 when a UIButton is tapped? - ios4

Question

Can anyone please give me sample code of how sound is played with a UIButton being tapped?
I would like to play an MP3 file using AVAudioPlayer

Answer 1

something like this should get you started. Add this to your view controller, then hook up the button to the playAudio action in interface builder.
in your header .h
#import <AVFoundation/AVFoundation.h>
#interface ClassName {
...
AVAudioPlayer *audioPlayer;
}
#property (nonatomic, retain) AVAudioPlayer *audioPlayer;
- (IBAction) playAudio;
in your .m
#synthesize audioPlayer;
- (IBAction) playAudio {
NSURL *url = [[NSBundle mainBundle] URLForResource:#"audio" withExtension: #"m4a"];
if (!url){NSLog(#"file not found"); return;}
NSError *error;
self.audioPlayer = [[[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error] autorelease];
[audioPlayer play]
}

Answer 2

//ViewController.h ,write below code
#interface ViewController : UIViewController<AVAudioRecorderDelegate,AVAudioPlayerDelegate>
//assign property to player
#property(nonatomic,retain) AVAudioPlayer *player;
//then write in ViewController.m file in ViewDidLoad Method
NSError *soundError;
NSString *path=[[NSBundle mainBundle]pathForResource:#"soundFileName" ofType:#"mp3"]; //.mp3 file for player
NSURL *file=[[NSURL alloc]initFileURLWithPath:path]; //path
_player=[[AVAudioPlayer alloc]initWithContentsOfURL:file error:&soundError]; //player Object
if(_player == nil)
{
NSLog(#"player is empty because of %#",soundError);
}
else
{
[_player play];
_player.volume=1.0;
[_player setDelegate:self];
}
// for stop player you can use
// [_player stop]; //uncomment this line when you wants to stop it.