我想在我的应用程序中添加此功能，用户在Exo Player中观看视频多长时间了？谁能告诉我这个代码是否可行。请解决这个问题。
答案 0 :(得分：1)
在ExoPlayer 2.11中，您可以使用PlaybackStatsListener。
要使用PlaybackStatsListener，请通过调用player.addAnalyticsListener(playbackStatsListener)向播放器注册一个实例。
可以使用playbackStatsListener.playbackStats.totalPlayTimeMs来获取总播放时间。
答案 1 :(得分：0)
少量笔记
是的，可以轻松地跟踪在ExoPlayer中播放的视频的运行时间。
您可以做什么
在此示例中，我使用了kotlin和 ExoPlayer v2.9.3
mPlayer.prepare()
// For example you attempted to get the duration immediately
mPlayer.getDuration()
最好的持续时间是监听ExoPlayer的状态变化，尤其是当它准备就绪时，否则，
UNKNOWN_TIME您将看到错误为.row{
width: 100%;
margin-left: auto;
margin-right: auto;
margin-top: 0;
margin-bottom: 0;
max-width: 75em;
}
.coluna{
position: relative;
padding-left: 15px;
padding-right: 15px;
float: left;
}
.row:before {
content: " ";
display: table;
}
.row:after {
clear: both;
}
#conteudo > div > div {
padding-top: 35px;
padding-bottom: 30px;
}
.colunas{
position: relative;
padding-left: 15px;
padding-right: 15px;
float: left;
width: 860px;
}
.menu-conteudo {
margin-top: -30px;
margin-right: -15px;
background: #33bd6c;
display: block;
clear: both;
overflow: hidden;
margin-bottom: 20px;
border-bottom: 1px solid #136e39;
}
article div.entrada-conteudo{
min-height: 165px;
}
div .entrada-conteudo p{
color: #595959;
font-size: 13px;
line-height: 20px;
text-align: justify;
}
.row .row {
width: auto;
margin-left: -15px;
margin-right: -15px;
margin-top: 0;
margin-bottom: 0;
max-width: none;
}
.images img{
width: 270px;
height: 200px;
}
.coluna article{
border-bottom: 1px solid #33bd6c;
margin-bottom: 40px;
width: 265px;
}
#conteudo .data {
color: #595959;
display: inline-block;
font-size: 12px;
margin-top: 20px;
font-weight: normal;
margin-bottom: 15px;
}
#conteudo h4.titulo {
line-height: 20px;
margin-top: 0;
margin-bottom: 20px;
color: #33bd6c;
}
#conteudo h4.titulo a {
color: #33bd6c;
font-family: "fs_hackney_webbold",sans-serif;
font-size: 18px;
}
.entrada-conteudo p{
color: #595959;
font-size: 13px;
line-height: 20px;
}
.texto{
margin-top: 40px;
padding-left: 22px;
width: 180px;
height: 100px;
display: inline-block;
position:relative;
}
.botao{
margin-top: 40px;
width: 90px;
height: 100px;
display: inline-block;
position:relative;
}
input[type="text"]{
background-color: #fff;
border: 1px none #cccccc;
box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
margin: 0 0 16px 0;
padding: 8px;
height: 37px;
font-size: 14px;
width: 100%;
box-sizing: border-box;
}
input[type="submit"]{
text-align: center;
border: none;
z-index: 2;
width: 100%;
padding-top: 0;
padding-bottom: 0;
border-style: solid;
border-width: 1px;
overflow: hidden;
font-size: 14px;
height: 37px;
line-height: 34px;
background-color: #33bd6c;
color: #fff;
}
input[type="submit"]:hover{
background-color: rgb(19,110,57);
}
.liga{
margin-top: -10px;
padding: 10px;
font-family: "fs_hackney_webbold",sans-serif;
font-size: 14px;
margin-left: 22px;
display: inline-block;
width: 255px;
background: #33bd6c;
color: #FFF!important;
border-bottom: 3px #136e39 solid;
margin-bottom: 0px!important;
}
#border-tabel{
border: 1px #cdcdcd solid;
display: inline-block;
margin-left: 22px;
width: 273px;
margin-bottom: 30px;
}
table#classificacao{
position: relative;
width: 100%;
}
#classificacao{
font-family: "fs_hackney_webbold",sans-serif;
font-size: 14px;
color: #626262;
}
#classificacao th{
color: #9b9b9b;
}
#classificacao tr, #classificacao th{
padding: 10px;
line-height: 14px;
}
#classificacao td{
position: static;
white-space: normal;
overflow: visible;
padding: 10px 12px;
border-top: 1px #dddddd solid;
}
#posicao{
color: #33bd6c;
}
.bordo-result{
border: 1px #cdcdcd solid;
border-top: 0px;
padding: 0 10px;
background: #FFF;
margin-left: 22px;
width: 253px;
display: inline-block;
}
.bordo-topo{
padding: 10px;
border-top: 1px #dddddd solid;
color: #626262;
font-size: 14px;
text-align: center;
}
.team{
color: #33bd6c;
}的日志。
参考
答案 2 :(得分：0)
万一有人在使用Xamarin时看到此消息。
对于Xamarin.Android，由于我们无法“新建”接口，因此请创建一个新类并继承自IPlayerEventListener。
public class CustomExoListener : Java.Lang.Object, IPlayerEventListener
{
PlayerView _player;
public CustomExoListener(PlayerView player)
{
_player = player;
}
public void OnLoadingChanged(bool isLoading) { }
public void OnPlayerError(ExoPlaybackException error) { }
public void OnPlayerStateChanged(bool playWhenReady, int playbackState)
{
if (playbackState != PlaybackState.PlaybackPositionUnknown)
{
var duration = _player.Player.Duration;
var position = _player.Player.CurrentPosition;
var percentageWatched = (100 * position / duration);
System.Diagnostics.Debug.WriteLine($"Player State: {playbackState} duration: {duration} position: {position} Watched: {percentageWatched}%");
}
}
public void OnPositionDiscontinuity(int reason) { }
public void OnSeekProcessed() { }
public void OnIsPlayingChanged(bool isPlaying) { }
public void OnTimelineChanged(Timeline timeline, int reason) { }
public void OnTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) { }
}
然后分配给玩家
var exoPlayerView = new SimpleExoPlayer.Builder(ApplicationContext).Build();
var uri = Android.Net.Uri.Parse(mediaUrl);
IHttpDataSourceFactory httpDataSourceFactory = new DefaultHttpDataSourceFactory(Util.GetUserAgent(ApplicationContext, "ChangeToYourAppName"));
IMediaSource mediaSource = new HlsMediaSource.Factory(httpDataSourceFactory).CreateMediaSource(uri);
// Prepare the player with the source.
exoPlayerView.Prepare(mediaSource);
exoPlayerView.AddListener(new CustomExoListener());
并在继承自IPlayerEventListener的新类的事件中做您需要做的一切