我的播放系统音

我的播放音频文件： 注意导入

#import <AudioToolbox/AudioToolbox.h>

- (BOOL)playSystomSound:(NSString*)filename

{

    if (filename == nil) return NO;

    

    SystemSoundID shortSound = 0;

    NSString *soundPath = [[NSBundle mainBundle] pathForResource:filename

                                                          ofType:@"caf"];

    // If this file is actually in the bundle...

    NSFileManager *fileManager = [NSFileManager defaultManager];

    if ([fileManager fileExistsAtPath:soundPath]) {

        // Create a file URL with this path

        NSURL *soundURL = [NSURL fileURLWithPath:soundPath];

        

        // Register sound file located at that URL as a system sound

        OSStatus err = AudioServicesCreateSystemSoundID((CFURLRef)soundURL,    //这个地方在上篇文章里应该还有个__bridge，但我的项目不是ARC，是手动管理 ，所以不需要)

                                                        &shortSound);

        if (err != kAudioServicesNoError){

            

        }

    } else {

        return NO;

    }

    AudioServicesAddSystemSoundCompletion(shortSound, NULL, NULL, &SoundFinished, NULL);

    AudioServicesPlaySystemSound(shortSound);

    return YES;

}

（不然会导致内存泄漏）

#pragma mark --

#pragma mark AudioServicesPlaySystemSound call back

void SoundFinished(SystemSoundID snd,void *context)

{

    AudioServicesRemoveSystemSoundCompletion(snd);

    AudioServicesDisposeSystemSoundID(snd);

}