我刚开始使用Android Studio和ExoPlayer,在使用播放器播放视频时,不知道如何检测播放器是否正在缓冲,并显示进度条通知用户。请问有什么帮助吗?
我刚开始使用Android Studio和ExoPlayer,在使用播放器播放视频时,不知道如何检测播放器是否正在缓冲,并显示进度条通知用户。请问有什么帮助吗?
也许对某些人会有帮助:
<com.google.android.exoplayer2.ui.PlayerView
android:id="@+id/player_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/black"
app:show_buffering="true"/>
如果您使用Exoplayer2,可以简单更改XML属性show_buffering。
另请参见PlayerView.setShowBuffering(PlayerView.ShowBuffering)
以了解更多详情。
setShowBuffering(boolean showBuffering)
已被弃用(自2.9.0版本起),建议使用 setShowBuffering(int showBuffering),因此旧的XML属性在最新版本中不起作用。 - remain4life在布局文件中:
<ProgressBar
android:id="@+id/progress_bar"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_gravity="center"/>
玩家活动中:
player.addListener(new ExoPlayer.EventListener() {
@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 onPlayerStateChanged(boolean playWhenReady, int playbackState) {
if (playbackState == ExoPlayer.STATE_BUFFERING){
progressBar.setVisibility(View.VISIBLE);
} else {
progressBar.setVisibility(View.INVISIBLE);
}
}
@Override
public void onPlayerError(ExoPlaybackException error) {}
@Override
public void onPositionDiscontinuity() {}
@Override
public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) {}
});
ExoPlayer.STATE_BUFFERING
已经过时,请使用Player.STATE_BUFFERING
代替。 - Zeeshan你应该实现 ExoPlayer.EventListener
并重写 onPlayerStateChanged()
来检测播放视频进度的状态(STATE_IDLE, STATE_BUFFERING, STATE_READY, STATE_ENDED)
app:show_buffering="when_playing"
属性。看到其他人的答案,我是这样做的。我使用了ExoPlayer 2.7.0版本。
private Player.EventListener eventListener = new Player.EventListener() {
@Override
public void onTimelineChanged(Timeline timeline, Object manifest, int reason) {
}
@Override
public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) {
//Log.i(TAG,"onTracksChanged");
}
@Override
public void onLoadingChanged(boolean isLoading) {
//Log.i(TAG,"onLoadingChanged");
}
@Override
public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {
switch (playbackState) {
case Player.STATE_ENDED:
Log.i("EventListenerState", "Playback ended!");
exoPlayer.setPlayWhenReady(false);
break;
case Player.STATE_READY:
Log.i("EventListenerState", "Playback State Ready!");
hideProgressBar();
break;
case Player.STATE_BUFFERING:
Log.i("EventListenerState", "Playback buffering");
showProgressBar();
break;
case Player.STATE_IDLE:
break;
}
}
@Override
public void onRepeatModeChanged(int repeatMode) {
}
@Override
public void onShuffleModeEnabledChanged(boolean shuffleModeEnabled) {
}
@Override
public void onPlayerError(ExoPlaybackException error) {
}
@Override
public void onPositionDiscontinuity(int reason) {
}
@Override
public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) {
}
@Override
public void onSeekProcessed() {
}
};
它对我来说是有效的。
<com.google.android.exoplayer2.ui.PlayerView
android:id="@+id/videoPlayer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:resize_mode="fill"
app:surface_type="texture_view"
app:use_controller="true"
app:show_buffering="always" />
mPlayer.addListener(eventListener);
Player.EventListener eventListener = new Player.EventListener() {
@Override
public void onTimelineChanged(Timeline timeline, Object manifest, int reason) {
}
@Override
public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) {
}
@Override
public void onLoadingChanged(boolean isLoading) {
}
@Override
public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {
switch (playbackState) {
case Player.STATE_ENDED:
Log.i("EventListenerState", "Playback ended!");
finish();
break;
}
}
@Override
public void onRepeatModeChanged(int repeatMode) {
}
@Override
public void onShuffleModeEnabledChanged(boolean shuffleModeEnabled) {
}
@Override
public void onPlayerError(ExoPlaybackException error) {
}
@Override
public void onPositionDiscontinuity(int reason) {
}
@Override
public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) {
}
@Override
public void onSeekProcessed() {
}
};
现在 Player.EventListener 已经被弃用,应该使用 Player.Listener
simpleExoPlayer.addListener(object : Player.Listener {
override fun onTracksChanged(
trackGroups: TrackGroupArray,
trackSelections: TrackSelectionArray
) {
}
override fun onLoadingChanged(isLoading: Boolean) {}
override fun onPlayerStateChanged(
playWhenReady: Boolean,
playbackState: Int
) {
if (playbackState == Player.STATE_BUFFERING) {
}
}
override fun onPlaybackParametersChanged(playbackParameters: PlaybackParameters) {}
})