add animations to listviews

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

@@ -1206,6 +1206,10 @@ class MainActivity : SimpleActivity(), DirectoryOperationsListener {
                 runOnUiThread {
                     directories_grid.adapter = this
                     setupScrollDirection()
+
+                    if (config.viewTypeFolders == VIEW_TYPE_LIST) {
+                        directories_grid.scheduleLayoutAnimation()
+                    }
                 }
             }
             measureRecyclerViewContent(dirsToShow)

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

@@ -420,6 +420,12 @@ class MediaActivity : SimpleActivity(), MediaOperationsListener {
                 setupZoomListener(mZoomListener)
                 media_grid.adapter = this
             }
+
+            val viewType = config.getFolderViewType(if (mShowAll) SHOW_ALL else mPath)
+            if (viewType == VIEW_TYPE_LIST) {
+                media_grid.scheduleLayoutAnimation()
+            }
+
             setupLayoutManager()
             handleGridSpacing()
             measureRecyclerViewContent(mMedia)

app/src/main/res/layout/activity_main.xml

@@ -52,6 +52,7 @@
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:layout_below="@+id/directories_switch_searching"
+            android:layoutAnimation="@anim/layout_animation"
             android:scrollbars="none"
             app:layoutManager="com.simplemobiletools.commons.views.MyGridLayoutManager"
             app:spanCount="@integer/directory_columns_vertical_scroll" />

app/src/main/res/layout/activity_media.xml

@@ -40,6 +40,7 @@
             android:id="@+id/media_grid"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
+            android:layoutAnimation="@anim/layout_animation"
             android:scrollbars="none"
             app:layoutManager="com.simplemobiletools.commons.views.MyGridLayoutManager"
             app:spanCount="@integer/media_columns_vertical_scroll" />