Merge pull request #579 from gh123man/gh123man/fixCloseIfAllFoldersExcluded

fixed bug where app will close if all media is missing or excluded

app/src/main/kotlin/com/simplemobiletools/gallery/activities/MediaActivity.kt

@@ -263,7 +263,7 @@ class MediaActivity : SimpleActivity(), MediaAdapter.MediaOperationsListener {
     }
 
     private fun setupAdapter() {
-        if (isDirEmpty()) {
+        if (!mShowAll && isDirEmpty()) {
             return
         }