AVPlayer - 如何重置播放按鈕

Question

我工作的應用程序流在線音頻文件。下面的代碼正在工作，但是當音頻文件結束時，播放按鈕不會重置。該按鈕仍然被按下，並且在用戶可以再次播放音頻文件之前，用戶必須按下該按鈕兩次。

我的問題是：如何在音頻文件結束後自動重置播放按鈕？

這裏是我的代碼：

-(IBAction)togglePlayPauseTapped:(id)sender 
    { 
     if(self.togglePlayPause.selected) { 
      [self.audioPlayer pause]; 
      [self.togglePlayPause setSelected:NO]; 
     } else { 
      [self.audioPlayer play]; 
      [self.togglePlayPause setSelected:YES]; 

      self.audioPlayer = [[AVPlayer alloc] init]; 
      NSString *urlString = @"MYURL"; 
      NSURL* urlStream = [NSURL URLWithString:urlString]; 
      AVPlayerItem * currentItem = [AVPlayerItem playerItemWithURL:urlStream]; 

      [self.audioPlayer replaceCurrentItemWithPlayerItem:currentItem]; 
      [self.audioPlayer play]; 




     } 

    }` 

Answer 1

設置audioPlayer的自我委託，並確保指定的視圖控制器可以接收AVAudioPlayer委託調用。然後實現audioPlayerDidFinishPlaying方法，並致電togglePlayPauseTapped方法：

- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag 
{ 
    [self togglePlayPauseTapped:nil]; 
} 

總應該是這個樣子：

編輯：

並更改該

self.audioPlayer = [[AVPlayer alloc] init]; 

到th是：

self.audioPlayer = [[AVAudioPlayer alloc] init];