refresh directories instantly after un/pinning

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

@@ -552,6 +552,10 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         directories_grid.setDragSelectActive(position)
     }
 
+    override fun recheckPinnedFolders() {
+        gotDirectories(movePinnedDirectoriesToFront(mDirs), true)
+    }
+
     private fun checkWhatsNewDialog() {
         arrayListOf<Release>().apply {
             add(Release(46, R.string.release_46))

app/src/main/kotlin/com/simplemobiletools/gallery/adapters/DirectoryAdapter.kt

@@ -221,7 +221,7 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
             config.removePinnedFolders(getSelectedPaths())
 
         pinnedFolders = config.pinnedFolders
-        listener?.refreshItems()
+        listener?.recheckPinnedFolders()
         notifyDataSetChanged()
         actMode?.finish()
     }
@@ -462,5 +462,7 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
         fun tryDeleteFolders(folders: ArrayList<File>)
 
         fun itemLongClicked(position: Int)
+
+        fun recheckPinnedFolders()
     }
 }

app/src/main/kotlin/com/simplemobiletools/gallery/extensions/context.kt

@@ -75,7 +75,11 @@ fun Context.movePinnedDirectoriesToFront(dirs: ArrayList<Directory>): ArrayList<
     val foundFolders = ArrayList<Directory>()
     val pinnedFolders = config.pinnedFolders
 
-    dirs.forEach { if (pinnedFolders.contains(it.path)) foundFolders.add(it) }
+    dirs.forEach {
+        if (pinnedFolders.contains(it.path))
+            foundFolders.add(it)
+    }
+
     dirs.removeAll(foundFolders)
     dirs.addAll(0, foundFolders)
     return dirs