AVPlayer seekToTime:向后不工作

Question

我有以下代码:

AVPlayerItem *currentItem = [AVPlayerItem playerItemWithURL:soundURL];
[self.audioPlayer replaceCurrentItemWithPlayerItem:currentItem];
[self.audioPlayer play];

这里soundURL是一个remoteURL.它工作正常.在AVPlayer完美播放音乐.我有一个进度条,我根据播放器的当前时间更新它.

一切正常.我的问题是当我向前拖动进度条audioplayer从新位置开始但是如果我拖动progressbar它不会从新位置开始实际上它从先前位置恢复.这是我的进度条拖动开始和停止代码:

- (IBAction)progressBarDraggingStart:(id)sender
{
     if (self.audioPlayer.rate != 0.0)
     {
          [self.audioPlayer pause];
     }
}

- (IBAction)progressBarDraggindStop:(id)sender
{
     CMTime newTime = CMTimeMakeWithSeconds(self.progressBar.value, 1);
     [self.audioPlayer seekToTime:newTime];
     [self.audioPlayer play];
}

任何人都可以帮我解决这个问题吗？

Answer 1

我建议你做几件事.首先,获取timescale值并将其传递给CMTime结构.其次,使用该seekToTime:toleranceBefore:toleranceAfter:completionHandler:方法进行更准确的搜索.例如,您的代码如下所示:

- (IBAction)progressBarDraggindStop:(id)sender {
    int32_t timeScale = self.audioPlayer.currentItem.asset.duration.timescale;

    [self.audioPlayer seekToTime: CMTimeMakeWithSeconds(self.progressBar.value, timeScale)
                 toleranceBefore: kCMTimeZero
                  toleranceAfter: kCMTimeZero
               completionHandler: ^(BOOL finished) {
                   [self.audioPlayer play];
               }];
}