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我有一個「播放器」類，應該管理我的全球音樂播放器。 這也適用於目前爲止。如果你有任何改進的建議，那麼這個班就在最後，隨時可以給我們提供。開始播放下一首歌曲
我想在當前歌曲結束時開始播放第二首歌曲。 因此，淡入到當前歌曲的下一首歌曲和FadeOut中，這使得歌曲更加安靜。
我現在的做法是一首歌曲在「waveOutDevice1」對象中運行，另一首歌曲在第二個對象中等待。只要當前歌曲即將結束，第二個WavePlayer就會啓動。但是現在的歌曲即將結束，我不知道該如何反應。
您有什麼想法或建議嗎？ 隨着親切的問候
我Player類：
public class Player
{
#region Properties, Fields
private IWavePlayer waveOutDevice1;
private IWavePlayer waveOutDevice2;
private AudioFileReader fileReader1;
private AudioFileReader fileReader2;
public AudioFile CurrentSong { get; private set; }
public Playlist CurrentPlaylist { get; private set; }
public List<AudioFile> lstPastSongs { get; private set; }
public List<AudioFile> lstNextSongs { get; set; }
public PlaybackState PlaybackState { get; private set; }
public bool Muted { get; private set; }
private float OldVolume = 0.0f;
#endregion
public Player()
{
this.lstNextSongs = new List<AudioFile>();
this.lstPastSongs = new List<AudioFile>();
}
#region Methods
public void Play(int index)
{
if (this.lstNextSongs.Count > 0 && index >= 0 && index < this.lstNextSongs.Count)
{
this.ResetFileReader();
this.CurrentSong = this.lstNextSongs[index];
this.CurrentPlaylist = this.CurrentSong.Playlist;
this.lstNextSongs.RemoveAt(index);
this.fileReader1 = new AudioFileReader(this.CurrentSong.Path);
this.waveOutDevice1 = new WaveOut();
this.waveOutDevice1.PlaybackStopped += WaveOutDevice1_PlaybackStopped;
this.waveOutDevice1.Init(this.fileReader1);
this.PlaybackState = PlaybackState.Playing;
this.waveOutDevice1.Play();
}
}
private void WaveOutDevice1_PlaybackStopped(object sender, StoppedEventArgs e)
{
this.Next();
}
private void ResetFileReader()
{
if (this.fileReader1 != null)
{
this.fileReader1.Dispose();
this.fileReader1 = null;
}
if (this.fileReader2 != null)
{
this.fileReader2.Dispose();
this.fileReader2 = null;
}
if(this.waveOutDevice1 != null)
{
this.waveOutDevice1.Dispose();
this.waveOutDevice1 = null;
}
if(this.waveOutDevice2 != null)
{
this.waveOutDevice2.Dispose();
this.waveOutDevice2 = null;
}
}
public void Pause()
{
if(this.waveOutDevice1 != null)
if (this.waveOutDevice1.PlaybackState == PlaybackState.Playing)
this.waveOutDevice1.Pause();
if(this.waveOutDevice2 != null)
if (this.waveOutDevice2.PlaybackState == PlaybackState.Playing)
this.waveOutDevice2.Pause();
this.PlaybackState = PlaybackState.Paused;
}
public void Continue()
{
if (this.waveOutDevice1 != null)
if (this.waveOutDevice1.PlaybackState == PlaybackState.Paused)
this.waveOutDevice1.Play();
if (this.waveOutDevice2 != null)
if (this.waveOutDevice2.PlaybackState == PlaybackState.Paused)
this.waveOutDevice2.Play();
this.PlaybackState = PlaybackState.Playing;
}
public void Next()
{
if(this.lstNextSongs.Count > 0)
{
if (this.CurrentSong != null)
this.lstPastSongs.Add(this.CurrentSong);
if (GlobalSettings.Shuffle)
{
System.Random random = new System.Random();
int randomNumber = random.Next(0, this.lstNextSongs.Count - 1);
this.Play(randomNumber);
}
else
this.Play(0);
}
else
{
if(GlobalSettings.Replay)
if(GlobalSettings.CurrentPlaylist != null)
for (int i = 0; i < GlobalSettings.CurrentPlaylist.panPlaylist.SongPlaylist.NumberOfSongs; i++)
this.lstNextSongs.AddRange(GlobalSettings.CurrentPlaylist.panPlaylist.SongPlaylist.AllSongs);
}
}
public void Previous()
{
if(this.CurrentSong == null)
{
if(this.lstPastSongs.Count > 0)
{
this.lstNextSongs.Insert(0, this.lstPastSongs[this.lstPastSongs.Count - 1]);
this.lstPastSongs.RemoveAt(this.lstPastSongs.Count - 1);
this.Play(0);
}
}
else
{
if(this.fileReader1 != null)
this._Previous(this.waveOutDevice1, this.fileReader1);
else if(this.fileReader2 != null)
this._Previous(this.waveOutDevice2, this.fileReader2);
}
}
private void _Previous(IWavePlayer waveOutDevice, AudioFileReader fileReader)
{
if (fileReader.CurrentTime.Seconds >= 10 || this.lstPastSongs.Count == 0)
{
waveOutDevice.Pause();
fileReader.CurrentTime = new System.TimeSpan(0, 0, 0);
waveOutDevice.Play();
}
else
{
this.lstNextSongs.Insert(0, this.CurrentSong);
this.lstNextSongs.Insert(0, this.lstPastSongs[this.lstPastSongs.Count - 1]);
this.lstPastSongs.RemoveAt(this.lstPastSongs.Count - 1);
this.Play(0);
}
}
public void SetVolume(int Volume)
{
if (Volume > -1 && Volume < 101)
{
float vol = (float)Volume/100;
if (this.fileReader1 != null)
this.fileReader1.Volume = vol;
if (this.fileReader2 != null)
this.fileReader2.Volume = vol;
this.Muted = false;
}
}
public void Mute()
{
if(this.Muted)
{
if(this.fileReader1 != null)
{
this.fileReader1.Volume = this.OldVolume;
this.Muted = false;
}
else if(this.fileReader2 != null)
{
this.fileReader2.Volume = this.OldVolume;
this.Muted = false;
}
}
else
{
this.Muted = true;
if(this.fileReader1 != null)
{
this.OldVolume = this.fileReader1.Volume;
this.fileReader1.Volume = 0;
}
else if(this.fileReader2 != null)
{
this.OldVolume = this.fileReader2.Volume;
this.fileReader2.Volume = 0;
}
}
}
#endregion
}
yesthat將是一種替代方案。但在我看來，計時器對於一個好的表現來說不是個好主意。 – ExclusivAtom
它不應該。特別是如果你在另一個線程上運行它。 'Thread.Sleep（）'影響非常小。 – theGleep
然後我會使用另一個計時器，直到找到更好的解決方案。 – ExclusivAtom