关于使用avaudioplayer播放音乐问题

要使用AVAudioPlayer播放音乐文件，首先要往项目中导入AVFoundation.framework，然后在具体的ViewController内实现"AVAudioPlayerDelegate"协议方法。具体实现代码如下：点击button，开始播放音乐。

[objc] view plain copy
#import "ViewController.h"  
/** 
 *  导入框架 
 */  
#import <AVFoundation/AVFoundation.h>  
/** 
 *  添加代理 
 */  
@interface ViewController ()<AVAudioPlayerDelegate>  
{  
    AVAudioPlayer *audioPlayer;  
}  
@end  
  
@implementation ViewController  
  
- (void)viewDidLoad {  
    [super viewDidLoad];  
    //找到音乐的播放路劲  
    NSString *path=[[NSBundle mainBundle]pathForResource:@"hightemper1" ofType:@"mp3"];  
    NSData *musicData=[NSData dataWithContentsOfFile:path];  
    audioPlayer=[[AVAudioPlayer alloc]initWithData:musicData error:nil];  
    audioPlayer.delegate=self;  
    UIButton *btn=[[UIButton alloc]initWithFrame:CGRectMake(110, 200, 100, 44)];  
    [btn setTitle:@"播放" forState:UIControlStateNormal];  
    [btn addTarget:self action:@selector(startPlay) forControlEvents:UIControlEventTouchUpInside];  
    btn.backgroundColor=[UIColor redColor];  
    [self.view addSubview:btn];  
    // Do any additional setup after loading the view, typically from a nib.  
}  
  
  
-(void)startPlay{  
    if (audioPlayer.prepareToPlay) {  
        //准备日就绪，开始播放  
        [audioPlayer play];  
    }  
}  
/** 
 *  代理方法的实现 
 */  
  
-(void)audioPlayerBeginInterruption:(AVAudioPlayer *)player{  
    NSLog(@"播放中断");  
}  
  
-(void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{  
    NSLog(@"播放完成");  
}  
-(void)audioPlayerEndInterruption:(AVAudioPlayer *)player withOptions:(NSUInteger)flags{  
    NSLog(@"中断事件结束----->一般在此方法内重新播放音乐");  
    if (flags == AVAudioSessionInterruptionOptionShouldResume) {  
        [audioPlayer play];  
    }  
}