re-use settings in abstractdirectoryview

Author: danirabbit

src/View/AbstractDirectoryView.vala

@@ -286,6 +286,12 @@ namespace Files {
         public signal void path_change_request (GLib.File location, Files.OpenFlag flag, bool new_root);
         public signal void selection_changed (GLib.List<Files.File> gof_file);
 
+        private static Settings app_settings;
+
+        static construct {
+            app_settings = new Settings ("io.elementary.files.preferences");
+        }
+
         //TODO Rewrite in Object (), construct {} style
         protected AbstractDirectoryView (View.Slot _slot) {
             slot = _slot;
@@ -1435,7 +1441,6 @@ namespace Files {
 
     /** Handle Preference changes */
         private void on_show_hidden_files_changed (GLib.Object prefs, GLib.ParamSpec pspec) {
-            var app_settings = new Settings ("io.elementary.files.preferences");
             bool show = app_settings.get_boolean ("show-hiddenfiles");
 
             model.show_hidden_files = show;