AudioToolBox无法在某些设备上播放

I have two applications that use the audiotoolbox framework to play short mp3 files. The deployment target is: 4.0 And the Base SDK is: iOS 5.0 SDK

我有两个使用audiotoolbox框架播放短mp3文件的应用程序。部署目标是:4.0并且Base SDK是:iOS 5.0 SDK

I have an iphone 4 with iOS 5.0 and an iPhone 3GS with iOS 5.0. Both of them are playing the sounds. A friend of mine that have iPad with iOS 4.3, can't play any of the sounds. And another friend with iPhone 4 with iOS 4.2 can't play the sounds as well. It looks like its something with the iOS but I don't really have any clue what is the real reason for it not to play.

我有iOS 5.0的iphone 4和iOS 5.0的iPhone 3GS。他们俩都在播放声音。我的一个朋友拥有带iOS 4.3的iPad,无法播放任何声音。而另一位使用iOS 4的iPhone 4的朋友也无法播放声音。它看起来像iOS的东西,但我真的不知道它不玩的真正原因是什么。

Here is an example of my code for playing a file:

以下是我播放文件的代码示例:

H. file (only relevant code):

H.文件(仅相关代码):

#import <AudioToolbox/AudioToolbox.h> 

SystemSoundID soundID1;

M. file (only relevant code):

M.文件(仅相关代码):

@synthesize soundID1

- (IBAction)one:(id)sender
{    NSString *path = [[NSBundle mainBundle] pathForResource:@"1" ofType:@"mp3"];
    AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:path], &soundID1);
    AudioServicesPlaySystemSound (soundID1);
}

- (void)dealloc { AudioServicesDisposeSystemSoundID (self.soundID1);}

1 个解决方案

#1

Why don't you use AVAudioPlayer toplay a sound file.

为什么不使用AVAudioPlayer来播放声音文件。

Here is the Code.

这是守则。

#import <AVFoundation/AVAudioPlayer.h>

- (void)viewDidLoad
{

    NSString *path1 = [[NSBundle mainBundle] pathForResource:@"1" ofType:@"mp3"];
    1 = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path1] error:NULL];
    1.delegate = self;
    [1 setVolume:1.0];
    [1 prepareToPlay];

}

- (IBAction)one:(id)sender
{

    if (1 && 1.playing) {
        [1 stop];
        [1 setCurrentTime:0];
        [1 play];
    }else {
        [1 play];
    }

}

since iOS 5 using ARC, it doesn't need to release. But, if you use older iOS, then create a release on dealloc method.

由于iOS 5使用ARC,因此不需要发布。但是,如果您使用较旧的iOS,则在dealloc方法上创建一个版本。

#1