Android VideoView 跳回过去

Question

我已经 videoView 实现了自定义搜索栏。更改搜索栏位置时，视频播放正确但时间显示错误。发生这种情况是因为 videoView 位置由于某种原因返回。它不会总是发生，但经常发生。

SeekBar 变化：

binding.progressBarVideo.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
        override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {


            if (underSeek) {
                binding.textViewTime.text = durationToFormat(binding.videoViewF.currentPosition)
                binding.videoViewF.seekTo(seekBar.progress)

                RLog.d("------------------")
                RLog.d("Seekbar progress: ${seekBar.progress}")
                RLog.d("videoView position: ${binding.videoViewF.currentPosition}")
                RLog.d("Time display string: ${durationToFormat(binding.videoViewF.currentPosition)}")
            }
        }

        override fun onStartTrackingTouch(seekBar: SeekBar?) {
            mainHandler.removeCallbacks(updateTextTask)
            underSeek = true
        }

        override fun onStopTrackingTouch(seekBar: SeekBar?) {
            mainHandler.post(updateTextTask)
            underSeek = false
            hideTimer = 0
        }

    })

更新文本任务：

private val updateTextTask = object : Runnable {
    override fun run() {

        RLog.d("----------------------------")
        RLog.d("videoView position: ${binding.videoViewF.currentPosition}")
        RLog.d("Time display string: ${durationToFormat(binding.videoViewF.currentPosition)}")

        binding.textViewTime.text = durationToFormat(binding.videoViewF.currentPosition)
        binding.progressBarVideo.progress = binding.videoViewF.currentPosition
        mainHandler.postDelayed(this, 1000)
                }
}

格式持续时间：

@SuppressLint("DefaultLocale")
private fun durationToFormat(duration: Int): String {

    return java.lang.String.format(
        "%02d:%02d",
        TimeUnit.MILLISECONDS.toMinutes(duration.toLong()),
        TimeUnit.MILLISECONDS.toSeconds(duration.toLong()) -
                TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(duration.toLong()))
    )
}

日志：

#onProgressChanged: ------------------
#onProgressChanged: Seekbar progress: 257875
#onProgressChanged: videoView position: 257875
#onProgressChanged: Time display string: 04:17
#run: ----------------------------
#run: videoView position: 257875
#run: Time display string: 04:17
#run: ----------------------------
#run: videoView position: 256957
#run: Time display string: 04:16
#run: ----------------------------

可以看到，seek后时间是257875，timer第一次迭代也是257875，然后跳到256957，不明白为什么...

Answer 1

我不确定，但我想问题出在 postDelayed，因为它实际上运行在 1 秒后。所以尝试在这里添加 1000 毫秒，希望它能正确运行。

RLog.d("Time display string: ${durationToFormat(binding.videoViewF.currentPosition + 1000)}")

Answer 2

您似乎从 runnable 再次更新进度，因此将从循环中调用 onProgressChanged 并将进度重置到之前的位置。

在这种情况下，您可以从代码中过滤掉进度更新，并且仅当 fromUser 为 true 时才在 onProgressChanged:

中寻找新的视频位置

override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
    if (fromUser) {
        binding.videoViewF.seekTo(seekBar.progress)
    }
    binding.textViewTime.text = durationToFormat(binding.videoViewF.currentPosition)
}

private val updateTextTask = object : Runnable {
    override fun run() {
        binding.progressBarVideo.progress = binding.videoViewF.currentPosition
        mainHandler.postDelayed(this, 1000)
    }
}

同样在这种情况下，您可以从 runnable 中删除文本更新，因为它将由 ProgressBar 位置更新触发。

Android VideoView 跳回过去

Android VideoView jumps back in time

android

kotlin

android-videoview