如何在iPhone上播放mp3 [英] how to play mp3 in iphone

问题描述

我正在为iPhone中的mp3播放器创建应用程序
我将.mp3文件复制到Resource文件夹中，并且该框架也可用
而且我的代码是runnig我没有收到任何错误，但是我没有通过耳机听到声音

代码-(void)viewDidLoad {
[super viewDidLoad];
NSString * path = [[NSBundle mainBundle] pathForResource:@"dtph" ofType:@"mp3"];
NSURL * file = [[[NSURL alloc] initFileURLWithPath:path];
AVAudioPlayer * p = [[[AVAudioPlayer alloc] initWithContentsOfURL:file error:nil];
[文件发布];
self.player = p;
[p版本]；
[player prepareToPlay];
[player setDelegate:self];


}
-(IBAction)玩{
//self.playbutton.enabled = NO;
//[玩家播放];
}

请帮助我

I am creating application for play mp3 in iphone
i copy .mp3 file in Resource folder and the framework is also available
and my code is runnig i am not getting any error but i am not hearing sound by headphone

code- (void)viewDidLoad {
[super viewDidLoad];
NSString *path = [[NSBundle mainBundle]pathForResource:@"dtph" ofType:@"mp3"];
NSURL *file=[[NSURL alloc]initFileURLWithPath:path];
AVAudioPlayer *p=[[AVAudioPlayer alloc]initWithContentsOfURL:file error:nil];
[file release];
self.player = p;
[p release];
[player prepareToPlay];
[player setDelegate:self];


}
-(IBAction) play{
//self.playbutton.enabled = NO;
//[player play];
}

plz help me

推荐答案

我不是Objective-C编程的输出，但是AVAudioPlayer变量不应该是类成员吗?

现在，看来您正在创建AVAudioPlayer的实例并释放它.

那是做什么的?

I''m not an export on Objective-C programming, but shouldn''t the AVAudioPlayer variable be a class member ?

Now, it seems your are creating an instance of the AVAudioPlayer and release it.

what does that do ?

self.player = p;
[p release];

还会释放self.player吗?

看看:
http://mobileorchard.com/easy-audio-playback-with-avaudioplayer/ [ ^ ]

最多

will it also release self.player ?

have a look at :
http://mobileorchard.com/easy-audio-playback-with-avaudioplayer/[^]

Max.

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