[Android] Prevent NPE on setUserVisibleHint

[Geoffrey Métais]

vlc-ports/android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Mon May  4 13:53:47 2015 +0200| [43e612df6c0fc87d14e3ce738f129f6ed8e2fbcc] | committer: Geoffrey Métais

Prevent NPE on setUserVisibleHint

> http://git.videolan.org/gitweb.cgi/vlc-ports/android.git/?a=commit;h=43e612df6c0fc87d14e3ce738f129f6ed8e2fbcc
---

 vlc-android/src/org/videolan/vlc/gui/audio/AudioPlayer.java |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/vlc-android/src/org/videolan/vlc/gui/audio/AudioPlayer.java b/vlc-android/src/org/videolan/vlc/gui/audio/AudioPlayer.java
index 64beb5b..3e08e29 100644
--- a/vlc-android/src/org/videolan/vlc/gui/audio/AudioPlayer.java
+++ b/vlc-android/src/org/videolan/vlc/gui/audio/AudioPlayer.java
@@ -713,4 +713,13 @@ public class AudioPlayer extends Fragment implements IAudioPlayer, View.OnClickL
         if(activity != null)
             activity.showTipViewIfNeeded(R.layout.audio_player_tips, PREF_AUDIOPLAYER_TIPS_SHOWN);
     }
+
+    /*
+     * Override this method to prefent NPE on mFragmentManager reference.
+     */
+    @Override
+    public void setUserVisibleHint(boolean isVisibleToUser) {
+        if (getFragmentManager() != null)
+            super.setUserVisibleHint(isVisibleToUser);
+    }
 }