From d91999abe8b3fb1ec226ae6b26b66443409f60e9 Mon Sep 17 00:00:00 2001
From: Miaoywww <375629202@qq.com>
Date: Wed, 31 Aug 2022 18:48:09 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E6=92=AD=E6=94=BE=E5=88=97?=
 =?UTF-8?q?=E8=A1=A8=E5=8F=8C=E5=87=BB=E7=9A=84bug?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 NcmPlayer/Resources/PlaylistMethod.cs     | 63 ++++++++++++-----------
 NcmPlayer/Views/Pages/PlaylistBar.xaml.cs |  5 +-
 2 files changed, 37 insertions(+), 31 deletions(-)

diff --git a/NcmPlayer/Resources/PlaylistMethod.cs b/NcmPlayer/Resources/PlaylistMethod.cs
index a30352c..d0f295a 100644
--- a/NcmPlayer/Resources/PlaylistMethod.cs
+++ b/NcmPlayer/Resources/PlaylistMethod.cs
@@ -116,43 +116,46 @@ private void PlaySong(int index)
             {
                 MainWindow.acc.Dispatcher.BeginInvoke(new Action(() =>
                 {
-                    Song song = list[index].Song;
-                    string[] artist = song.Artists;
-                    string name = song.Name;
-                    string artists = string.Empty;
-                    Lrcs songLrc = song.GetLrc;
-                    for (int i = 0; i <= artist.Length - 1; i++)
+                    if (list.Count != 0)
                     {
-                        if (i != artist.Length - 1)
+                        Song song = list[index].Song;
+                        string[] artist = song.Artists;
+                        string name = song.Name;
+                        string artists = string.Empty;
+                        Lrcs songLrc = song.GetLrc;
+                        for (int i = 0; i <= artist.Length - 1; i++)
                         {
-                            artists += artist[i] + "/";
+                            if (i != artist.Length - 1)
+                            {
+                                artists += artist[i] + "/";
+                            }
+                            else
+                            {
+                                artists += artist[i];
+                            }
                         }
-                        else
+                        MemoryStream ms = new();
+                        Stream songCover = song.Cover;
+                        songCover.CopyTo(ms);
+                        string b64Cover = Convert.ToBase64String(ms.ToArray());
+                        if (!string.IsNullOrEmpty(b64Cover))
                         {
-                            artists += artist[i];
+                            Regediter.Regedit("Song", "SongCover", b64Cover);
                         }
-                    }
-                    MemoryStream ms = new();
-                    Stream songCover = song.Cover;
-                    songCover.CopyTo(ms);
-                    string b64Cover = Convert.ToBase64String(ms.ToArray());
-                    if (!string.IsNullOrEmpty(b64Cover))
-                    {
-                        Regediter.Regedit("Song", "SongCover", b64Cover);
-                    }
-                    ResEntry.songInfo.Cover(new MemoryStream(Convert.FromBase64String(RegGeter.RegGet("Song", "SongCover").ToString())));
-                    ResEntry.songInfo.FilePath = song.GetMp3();
-                    MusicPlayer.RePlay(ResEntry.songInfo.FilePath, name, artists);
-                    ResEntry.songInfo.DurationTime = song.DuartionTime;
-                    ResEntry.songInfo.AlbumCoverUrl = song.CoverUrl;
-                    ResEntry.songInfo.AlbumId = song.AlbumId;
-                    ResEntry.songInfo.LrcString = song.GetLrcString;
+                        ResEntry.songInfo.Cover(new MemoryStream(Convert.FromBase64String(RegGeter.RegGet("Song", "SongCover").ToString())));
+                        ResEntry.songInfo.FilePath = song.GetMp3();
+                        MusicPlayer.RePlay(ResEntry.songInfo.FilePath, name, artists);
+                        ResEntry.songInfo.DurationTime = song.DuartionTime;
+                        ResEntry.songInfo.AlbumCoverUrl = song.CoverUrl;
+                        ResEntry.songInfo.AlbumId = song.AlbumId;
+                        ResEntry.songInfo.LrcString = song.GetLrcString;
 
-                    Views.Pages.Player.playerPage.ClearLrc();
-                    Views.Pages.Player.playerPage.UpdateLrc(songLrc);
+                        Views.Pages.Player.playerPage.ClearLrc();
+                        Views.Pages.Player.playerPage.UpdateLrc(songLrc);
 
-                    Index = index;
-                    UpdateIndex();
+                        Index = index;
+                        UpdateIndex();
+                    }
                 }));
             });
         }
diff --git a/NcmPlayer/Views/Pages/PlaylistBar.xaml.cs b/NcmPlayer/Views/Pages/PlaylistBar.xaml.cs
index 4e34694..ea99ce4 100644
--- a/NcmPlayer/Views/Pages/PlaylistBar.xaml.cs
+++ b/NcmPlayer/Views/Pages/PlaylistBar.xaml.cs
@@ -61,7 +61,10 @@ private void UpdateInfo()
 
         private void Playlist_PreviewMouseDoubleClick(object sender, MouseButtonEventArgs e)
         {
-            ResEntry.wholePlaylist.Play(Playlist.SelectedIndex);
+            if (Playlist.SelectedIndex != -1)
+            {
+                ResEntry.wholePlaylist.Play(Playlist.SelectedIndex);
+            }
         }
     }
 }
\ No newline at end of file