android - Exoplayer 2 防止视频播放时屏幕变暗

Question

我有简单的播放器 Activity :

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.epix.presentation.player.PlayerActivity">

    <com.google.android.exoplayer2.ui.SimpleExoPlayerView
        android:id="@+id/video_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</android.support.constraint.ConstraintLayout>

播放视频时屏幕会变暗，我必须点击屏幕才能再次变亮。我已经尝试设置 android:keepScreenOn="true"，这当然没有帮助，因为屏幕不会关闭它只是变暗。

有没有办法防止屏幕变暗？

Answer 1

希望这会对某人有所帮助。

设置 setKeepScreenOn 仅在视频播放和缓冲时，以及在视频暂停/未播放/发生任何错误时允许屏幕休眠。

playerView = exoPlayerLayout.findViewById(R.id.exo_player_view);
player = ExoPlayerFactory.newSimpleInstance(new DefaultRenderersFactory(context),
                new DefaultTrackSelector(), new DefaultLoadControl());

player.addListener(new PlayerEventListener());

播放器事件监听器

private class PlayerEventListener implements Player.EventListener {
    @Override
    public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {
        if (playbackState == Player.STATE_IDLE || playbackState == Player.STATE_ENDED ||
                !playWhenReady) {

            playerView.setKeepScreenOn(false);
        } else { // STATE_READY, STATE_BUFFERING
            // This prevents the screen from getting dim/lock
            playerView.setKeepScreenOn(true);
        }
    }
    
    @Override
    public void onTimelineChanged(Timeline timeline, Object manifest) {}

    @Override
    public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) {}

    @Override
    public void onLoadingChanged(boolean isLoading) {}

    @Override
    public void onRepeatModeChanged(int repeatMode) { }

    @Override
    public void onPlayerError(ExoPlaybackException error) { }

    @Override
    public void onPositionDiscontinuity() { }

    @Override
    public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) { }
}

检查播放状态here , 如果您想根据需要修改 setKeepScreenOn。