Android实现mediaPlayer+surface+seekbar自定义视频播放器

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我是靠谱客的博主高兴香菇，最近开发中收集的这篇文章主要介绍Android实现mediaPlayer+surface+seekbar自定义视频播放器，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

本来已经被放弃的场景，应甲方要求又加回来了，还加了个视频播放功能 orz 哭晕了

mediaPlayer+surface+seekbar还原抖音视频播放器自定义视频播放器kotlin实现

本代码实现一个自定义的视频播放器，进度条可拖动，实现效果（因为开了2k图有点大）
请添加图片描述

0.视频存放位置

在res下创建raw文件夹，放视频文件video.mp4

1.关键代码

项目里有很多其他交互代码，下面我放一些主要的代码
几个关键点：

mediaPlayer的start需要在onPrepare的监听方法中调用，否则初始化视频资源会出问题
实现seekbar和视频播放进度同步：使用Thread，sbThread继承runable，重写run方法
实现拖动进度条，改变视频播放进度：重写进度条的监听onProgressChanged，onStartTrackingTouch，onStopTrackingTouch

class TiktokActivity : AppCompatActivity(), SeekBar.OnSeekBarChangeListener {
    private lateinit var sb_tiktok: SeekBar
    private lateinit var surfaceView: SurfaceView
    var mediaPlayer = MediaPlayer()
    private  lateinit var binding: ActivityTiktokBinding
    private var position = 0
    
    private var touchSB = false
    
    override fun onCreate(savedInstanceState: Bundle?) {
        
        super.onCreate(savedInstanceState)

        binding = ActivityTiktokBinding.inflate(layoutInflater)
        setContentView(binding.root)
        sb_tiktok = findViewById<SeekBar>(R.id.sb_tiktok)

        surfaceView = findViewById(R.id.suf_tiktok)
        surfaceView.holder.setKeepScreenOn(true)
        surfaceView.holder.addCallback(object : SurfaceHolder.Callback {
            override fun surfaceCreated(p0: SurfaceHolder) {

            }

            override fun surfaceChanged(p0: SurfaceHolder, p1: Int, p2: Int, p3: Int) {

            }

            override fun surfaceDestroyed(p0: SurfaceHolder) {
                if (mediaPlayer != null && mediaPlayer.isPlaying()){
                    position = mediaPlayer.currentPosition
                    mediaPlayer.stop()
                }
            }
        })


        sb_tiktok.setOnSeekBarChangeListener(this)
        
        play()
    }
    fun play() {
        try {
            mediaPlayer.reset()
            mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC)
            mediaPlayer.setDataSource(this,
                Uri.parse("android.resource://"+this.packageName+"/"+R.raw.vedio))

        }catch (e: IOException){
            e.printStackTrace()

        }
        try {
            mediaPlayer.prepare()
        }catch (e: IOException){
            e.printStackTrace()
        }

        mediaPlayer.setOnPreparedListener {
            mediaPlayer.setDisplay(surfaceView.holder)
            mediaPlayer.start()
            sb_tiktok.max = mediaPlayer.duration
            val th = Thread(sbThread)
            th.start()
        }
        mediaPlayer.setOnCompletionListener {

        }
    }

    override fun onProgressChanged(p0: SeekBar?, p1: Int, p2: Boolean) {
        if (touchSB == true){
            var process = p0?.progress
            if (process != null) {
                mediaPlayer.seekTo(process)
            }
        }

    }

    @RequiresApi(Build.VERSION_CODES.Q)
    override fun onStartTrackingTouch(p0: SeekBar?) {
        touchSB = true
        if (p0 != null) {
            p0.maxHeight = 45
            p0.minHeight = 45
//            position = p0.progress
            var process = p0.progress
            mediaPlayer.seekTo(process)
        }
    }

    @RequiresApi(Build.VERSION_CODES.Q)
    override fun onStopTrackingTouch(p0: SeekBar?) {
        touchSB = false
        if (p0 != null) {
            p0.maxHeight = 10
            p0.minHeight = 10
            var process = p0.progress
            mediaPlayer.seekTo(process)
            mediaPlayer.start()

        }
    }

    val sbThread:Runnable = object : Runnable {
        override fun run() {
            while (mediaPlayer.isPlaying){
                sb_tiktok.max = mediaPlayer.duration
                sb_tiktok.progress = mediaPlayer.currentPosition
                println(mediaPlayer.currentPosition)
                try {
                    Thread.sleep(100)

                }catch (e: InterruptedIOException){
                    e.printStackTrace()
                }
            }
        }
    }
}