[Android] Fix IllegalArgumentException

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas at videolabs.io> | Fri Aug 13 07:48:59 2021 +0200| [a89d6e7bc86ae7c7dac34abbc3f133c471531a01] | committer: Nicolas Pomepuy

Fix IllegalArgumentException

> https://code.videolan.org/videolan/vlc-android/commit/a89d6e7bc86ae7c7dac34abbc3f133c471531a01
---

 .../src/org/videolan/vlc/media/PlaylistManager.kt          | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/application/vlc-android/src/org/videolan/vlc/media/PlaylistManager.kt b/application/vlc-android/src/org/videolan/vlc/media/PlaylistManager.kt
index 66f99a00f..32123a881 100644
--- a/application/vlc-android/src/org/videolan/vlc/media/PlaylistManager.kt
+++ b/application/vlc-android/src/org/videolan/vlc/media/PlaylistManager.kt
@@ -630,16 +630,22 @@ class PlaylistManager(val service: PlaybackService) : MediaWrapperList.EventList
         }
     }
 
-    fun previousTotalTime() = if (shuffling) {
-        mediaList.copy.asSequence()
+    fun previousTotalTime() = when {
+        mediaList.size() == 0 -> {
+            0
+        }
+        shuffling -> {
+            mediaList.copy.asSequence()
                 .filterIndexed { index, _ -> previous.contains(index) }
                 .map { it.length }
                 .sum()
-    } else {
-        mediaList.copy.asSequence()
+        }
+        else -> {
+            mediaList.copy.asSequence()
                 .take(currentIndex)
                 .map { it.length }
                 .sum()
+        }
     }
 
     /**