我似乎無法讓音頻在我的應用中工作？我使用的AVAudio框架

Question

幫助球員:)我已經嘗試絕對一切，以AVAudioPlayer音頻工作在我的應用程序。由於某些原因，它不會在iPhone模擬器上播放。代碼如下 -

#import "ViewController.h" 
#import "AVFoundation/AVFoundation.h" 

@interface ViewController() 
{ 
    AVAudioPlayer *avPlayer; 
} 

@end 

@implementation ViewController 
@synthesize myProgressView; 
@synthesize sliderVolumeOutlet; 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    NSString *stringPath = [[NSBundle mainBundle]pathForResource:@"audioapp" ofType:@"mp3"]; 
    NSURL *url = [NSURL fileURLWithPath:stringPath]; 

    NSError *error; 

    avPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:url error:&error]; 
    [avPlayer setNumberOfLoops:1]; 

    [avPlayer setVolume:self.sliderVolumeOutlet.value]; 
    [NSTimer scheduledTimerWithTimeInterval:.1 target:self selector:@selector(updateProgress) userInfo:nil repeats:YES];  
} 

歌曲本身在項目文件中，我真的不知道我在做什麼錯。

Answer 1

檢查錯誤，並嘗試

-(IBAction) playAudio{ 
     NSError *error; 
     NSURL *url = [NSURL fileURLWithPath:self.audioName]; 

     audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error]; 
     audioPlayer.delegate = self; 
     if (error) 
      NSLog(@"Error: %@", [error localizedDescription]); 
     else 
      [audioPlayer play]; 
}