问题
I'd like to include an MP3 with my app and play it on demand. Unfortunately I am not sure how to get started. I keep reading about .caf files, but I am not sure what those are.
I am looking for a step by step, if possible.
回答1:
You could also try the AVAudioPlayer utility Framework.
回答2:
Here is what I am doing to play mp3 in xCode 4.2:
1) Import AVFoundation.framework
framework into your project
2) Adding: #import "AVFoundation/AVAudioPlayer.h"
into your project ViewController.h
file:
#import <UIKit/UIKit.h>
#import "AVFoundation/AVAudioPlayer.h"
@interface ViewController : UIViewController
@end
3) Drag and drop your mp3 file yoursoundfile.mp3
into your root project explorer
4) Modify -(void)viewDidLoad
in ViewController.m
:
- (void)viewDidLoad{
[super viewDidLoad];
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
pathForResource:@"yoursoundfile"
ofType:@"mp3"]];
AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc]
initWithContentsOfURL:url
error:nil];
[audioPlayer play];
}
As soon as you start your program, it will play the sound. You can customize to fit your app by changing volume, or when to play, stop...
回答3:
Use afconvert in Terminal to convert your MP3 to a .caf. man afconvert will tell you more.
Then
NSString *soundFilePath = [[NSBundle mainBundle] pathForResource: name ofType: @"caf"];
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath];
AVAudioPlayer *player = [super initWithContentsOfURL: fileURL error: nil];
[fileURL release];
[player play];
回答4:
Maybe look at: http://iphoneincubator.com/blog/audio-video/simple-way-to-play-mp3-audio-files and http://cocoawithlove.com/2008/09/streaming-and-playing-live-mp3-stream.html?
来源:https://stackoverflow.com/questions/1296786/how-do-i-programmatically-play-an-mp3-on-an-iphone