[#14] Fix searchable spinner mode not clear selected item when call clearSelection() method

Author: Chivorns

smartmaterialspinner/src/main/java/com/chivorn/smartmaterialspinner/SmartMaterialSpinner.java

@@ -834,6 +834,7 @@ public void setSelection(int position) {
             @Override
             public void run() {
                 SmartMaterialSpinner.super.setSelection(hint != null ? finalPosition + 1 : finalPosition, false);
+                searchableSpinnerDialog.setSelectedPosition(finalPosition);
                 checkReSelectable(finalPosition);
             }
         });
@@ -845,6 +846,7 @@ public void setSelection(int position, boolean animate) {
             position -= 1;
         }
         super.setSelection(hint != null ? position + 1 : position, animate);
+        searchableSpinnerDialog.setSelectedPosition(position);
         checkReSelectable(position);
     }