[Android] Fix ClassCastException

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas at videolabs.io> | Mon Dec  7 06:41:56 2020 +0100| [42f716e7b66ff0f59dcac5431c3ccd780c214981] | committer: Nicolas Pomepuy

Fix ClassCastException

Fixes #1569

> https://code.videolan.org/videolan/vlc-android/commit/42f716e7b66ff0f59dcac5431c3ccd780c214981
---

 application/vlc-android/src/org/videolan/vlc/gui/BaseFragment.kt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/application/vlc-android/src/org/videolan/vlc/gui/BaseFragment.kt b/application/vlc-android/src/org/videolan/vlc/gui/BaseFragment.kt
index 9e2ac9868..92a82caf7 100644
--- a/application/vlc-android/src/org/videolan/vlc/gui/BaseFragment.kt
+++ b/application/vlc-android/src/org/videolan/vlc/gui/BaseFragment.kt
@@ -77,7 +77,7 @@ abstract class BaseFragment : Fragment(), ActionMode.Callback {
     }
 
     fun updateAudioPlayerMargin() {
-        val activity = activity as AudioPlayerContainerActivity? ?: return
+        val activity = activity as? AudioPlayerContainerActivity? ?: return
         view?.let {
             it.setPadding(0,0,0,activity.getAudioMargin())
         }