Exo PlayerView 第一帧拉伸到全屏

Question

I use PlayerView to play mp4 video file, but the first frame always stretch to full screen. How can we avoid that? This is code I config Player and PlayerView

        player = SimpleExoPlayer.Builder(requireContext()).build().apply {
            playWhenReady = this@VideoPlayerFragment.playWhenReady
            seekTo(currentWindow, playbackPosition)
            setMediaSource(mediaSource, false)
            prepare()
        }

        video_view.player = player

Answer 1

i had android:animateLayoutChanges="true" in StyledPlayerView tag which caused the problem, remove it. also make sure parent view doesn't have animateLayoutChanges attribute
here is the full exoplayer xml

<com.google.android.exoplayer2.ui.StyledPlayerView
    android:id="@+id/video_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:animation_enabled="false"
    app:auto_show="true"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:repeat_toggle_modes="none"
    app:resize_mode="fit"
    app:show_timeout="3000"
    app:surface_type="texture_view"
    app:use_controller="true" />