保存外层位置以在关闭视图后继续播放（OnDestroy（））

Question

正如我已经了解的那样，当我在观看视频时退出播放器视图或不按暂停按钮，onpause（）和onStop（）方法开始发挥作用，如果我们按下返回按钮，则ondestroy（）方法开始发挥作用，并且摧毁视图。

以下代码达到的是，当我离开播放器的视图或不暂停按钮时，例如以提高屏幕的亮度，我返回视频时，剩下的范围继续进行。那对我有好处。但是，当我按下后面按钮并再次播放视频时，它是从一开始就开始的。

我可以在onCreate（）方法中控制它，但是找不到正确的键。

有什么想法吗？谢谢

   private lateinit var binding: ActivityExoPlayerPlayPeliBinding
   private var player: ExoPlayer? = null
   private var playWhenReady = true
   private var currentItem = 0
   private var playbackPosition: Long = 0

   override fun onCreate(savedInstanceState: Bundle?) {
       super.onCreate(savedInstanceState)
       binding = ActivityExoPlayerPlayPeliBinding.inflate(layoutInflater)
       setContentView(binding.root)
   }

   override fun onStart() {
       super.onStart()
       initializePlayer()
   }

   override fun onPause() {
       super.onPause()
       savePos()
   }

   override fun onStop() {
       super.onStop()
       savePos()
   }

   override fun onResume() {
       super.onResume()
       hideSystemUi()
       continuePlayer(savePos())
   }

   override fun onDestroy() {
       super.onDestroy()
       savePos()
   }

   private fun savePos(): Long {
       if (player != null){
       playbackPosition = player!!.currentPosition
           player!!.removeListener(this)
           player!!.release()
           player = null
       }
       return playbackPosition
   }

   private fun continuePlayer(playPosition: Long) {
       player = ExoPlayer.Builder(applicationContext).build()
       player!!.addListener(this)
       binding.videoView.player = player

       val url = intent.getStringExtra("url")
       val mediaItem = item(url!!)

       player!!.setMediaItem(mediaItem)
       player!!.isCurrentMediaItemLive
       playWhenReady
       player!!.seekTo(currentItem, playPosition)
       player!!.prepare()
       player!!.play()
   }


   private fun initializePlayer() {
       player = ExoPlayer.Builder(applicationContext).build()
       player!!.addListener(this)
       binding.videoView.player = player

       val url = intent.getStringExtra("url")
       val mediaItem = item(url!!)

       player!!.setMediaItem(mediaItem)
       player!!.isCurrentMediaItemLive
       playWhenReady
       player!!.seekTo(currentItem, playbackPosition)
       player!!.prepare()
       player!!.play()
   }

Answer 1

您必须在其他地方保存位置，然后在活动或碎片中检索它。最简单的方法是通过共享流程