我的应用程序在播放声音时崩溃

Question

我试图通过单击按钮播放声音。但是，当我运行应用程序崩溃，我得到Thread 1 : signal SIGABRT。

这是我的代码：

.h文件中

#import <AVFoundation/AVFoundation.h> 

@interface HljodViewController : UIViewController <AVAudioPlayerDelegate>{ 

} 

-(IBAction)playsound; 

.m文件

-(IBAction)playsound { 

    NSString *path = [[NSBundle mainBundle] pathForResource:@"Geese_4" ofType:@"mp3"]; 
    AVAudioPlayer* theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL]; 
    theAudio.numberOfLoops = 1; 
    [theAudio play]; 
} 

Answer 1

只要看看下面显示的链接，并检查你在哪里犯的错误？

http://looksok.wordpress.com/2013/01/19/ios-tutorial-play-sound/

http://www.techotopia.com/index.php/Playing_Audio_on_an_iPhone_using_AVAudioPlayer_(iOS_6)

http://code-and-coffee.blogspot.in/2012/09/how-to-play-audio-in-ios.html

Answer 2

没有人能告诉你如何解决您的问题，如果你不抓住NSError。我建议你做到以下几点：

NSError *outError = nil; 
AVAudioPlayer* theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:&outError]; 
if (outError) 
{ 
    NSLog(@"%@", [outError localizedDescription]); 
} 
... // continue on to happy time 

Answer 3

试试这个：

[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil]; 
[[AVAudioSession sharedInstance] setActive:YES error:nil]; 
NSString *path = [[NSBundle mainBundle] pathForResource:@"yourfile" ofType:@"mp3"]; 
NSError *error; 
AVAudioPlayer *sound = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:&error]; 
[sound play];