[Android] BrowserProvider: Send event when folder is empty

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Tue Aug 28 13:43:42 2018 +0200| [b831c14d7d16ab46b7f2a6a93c4169b61d03f0e0] | committer: Geoffrey Métais

BrowserProvider: Send event when folder is empty

See #641

> https://code.videolan.org/videolan/vlc-android/commit/b831c14d7d16ab46b7f2a6a93c4169b61d03f0e0
---

 vlc-android/src/org/videolan/vlc/providers/BrowserProvider.kt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vlc-android/src/org/videolan/vlc/providers/BrowserProvider.kt b/vlc-android/src/org/videolan/vlc/providers/BrowserProvider.kt
index ae9b25899..16c26e124 100644
--- a/vlc-android/src/org/videolan/vlc/providers/BrowserProvider.kt
+++ b/vlc-android/src/org/videolan/vlc/providers/BrowserProvider.kt
@@ -89,7 +89,8 @@ abstract class BrowserProvider(val context: Context, val dataset: LiveDataset<Me
         requestBrowsing(url)
         job = launch(UI.immediate) {
             for (media in browserChannel) addMedia(findMedia(media))
-            parseSubDirectories()
+            if (dataset.value.isNotEmpty()) parseSubDirectories()
+            else dataset.clear() // send observable event when folder is empty
         }
     }