MPNowPlayingInfoCenter AVPlayer

Question

我正在开发一款应用程序。我正在使用AVPlayer进行音频。我想通过控制屏幕按钮控制音频。我不知道如何注册远程事件。

Answer 1

我的示例实现了这个功能：https://github.com/martijn00/XamarinMediaManager/blob/master/MediaManager/MediaManager.Plugin.iOSUnified/MediaManagerImplementation.cs

您应该使用的代码是：

          player.ReplaceCurrentItemWithPlayerItem(streamingItem);
          streamingItem.AddObserver(this, new NSString("status"), NSKeyValueObservingOptions.New, player.Handle);
          streamingItem.AddObserver(this, new NSString("loadedTimeRanges"), NSKeyValueObservingOptions.Initial | NSKeyValueObservingOptions.New, player.Handle);

          player.CurrentItem.SeekingWaitsForVideoCompositionRendering = true;
          player.CurrentItem.AddObserver(this, (NSString)"status", NSKeyValueObservingOptions.New |
              NSKeyValueObservingOptions.Initial, StatusObservationContext.Handle);

          NSNotificationCenter.DefaultCenter.AddObserver(AVPlayerItem.DidPlayToEndTimeNotification, async (notification) =>
          {
              await PlayNext();
          }, player.CurrentItem);

          player.Play();