特别针对启动页播放视频的问题

1.实现

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <VideoView
        android:id="@+id/video"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
    <androidx.appcompat.widget.AppCompatImageView
        android:id="@+id/iv"
        android:background="@drawable/my_dog"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

可以看到在视频上面放一个image，当视频准备渲染成功后隐藏image，这个image使用启动图

2.具体解决

val path = "android.resource://" + packageName.toString() + "/" + R.raw.leaf
 video.setVideoPath(path)
video.start()
        video.setOnPreparedListener(object : MediaPlayer.OnPreparedListener {
            override fun onPrepared(mp: MediaPlayer?) {
                mp?.setOnInfoListener(object : MediaPlayer.OnInfoListener {
                    override fun onInfo(mp: MediaPlayer?, what: Int, extra: Int): Boolean {
                        if (what == MediaPlayer.MEDIA_INFO_VIDEO_RENDERING_START) {
                            iv.visibility = View.GONE
                            return true
                        }
                        return false
                    }
                })
            }
        })

这样做的缺点是，让用户感觉启动时间增加了，但比有黑屏要好