Question

好的，这是有效的

- (id)initWithCoder:(NSCoder*)coder
{
 if ((self = [super initWithCoder:coder]))
  {
   // Load the sounds
  NSURL *soundURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"Begin Drawing" ofType:@"wav"]];
  AudioServicesCreateSystemSoundID((CFURLRef)soundURL, &_boomSoundIDs[0]);
  soundURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"Middle Drawing" ofType:@"wav"]];
  AudioServicesCreateSystemSoundID((CFURLRef)soundURL, &_boomSoundIDs[1]);
  soundURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"End Drawing" ofType:@"wav"]];
  AudioServicesCreateSystemSoundID((CFURLRef)soundURL, &_boomSoundIDs[2]);  
  }
 return self;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 
{
 UITouch *touch = [touches anyObject];

 if ([touches count] == 1)
  {
  AudioServicesPlaySystemSound(_boomSoundIDs[0]);
 }

但这就是我想要解决的问题

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event 
{
if ([touches count] == 1)
  {
  AudioServicesPlaySystemSound(_boomSoundIDs[1]);
 }

它只是连续播放，声音不会一直播放，但每次用户移动手指时都会开始播放，我想要的是实际播放，然后再循环播放

Answer 1

系统声音API可能不是您尝试做的最佳选择。看看AVAudioPlayer。 API很简单，它可以让你检查声音是否已经播放。

Answer 2

在播放声音之前，请检查它是否已播放。

另外请重新格式化您的代码，这很难阅读。

试图在iPhone上播放声音

2 个答案: