Improve custom view and update arrow up and down on time base on user select

Author: Chivorns

resources/src/main/res/layout/custom_view_layout.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:ellipsize="marquee"
+    android:gravity="center"
+    android:orientation="vertical"
+    android:singleLine="true" />

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

@@ -716,6 +716,7 @@ public boolean performClick() {
                 if (spinnerEventsListener != null) {
                     spinnerEventsListener.onSpinnerOpened(SmartMaterialSpinner.this);
                 }
+                invalidate();
                 return true;
             }
         } else if (isSpinnerEmpty()) {
@@ -727,6 +728,7 @@ public boolean performClick() {
         if (spinnerEventsListener != null) {
             spinnerEventsListener.onSpinnerOpened(this);
         }
+        invalidate();
         return super.performClick();
     }
 
@@ -1497,8 +1499,8 @@ public void setAdapter(SpinnerAdapter adapter) {
 
     public void setItem(@NonNull List<T> item) {
         this.item = item;
-        ArrayAdapter<T> adapter = new ArrayAdapter<>(getContext(), R.layout.smart_material_spinner_item_layout, item);
-        adapter.setDropDownViewResource(R.layout.smart_material_spinner_dropdown_item_layout);
+        ArrayAdapter<T> adapter = new ArrayAdapter<>(getContext(), itemView, item);
+        adapter.setDropDownViewResource(dropdownView);
         setAdapter(adapter);
         configDropdownWidthAfterDataReady();
         invalidate();
@@ -1657,6 +1659,7 @@ private void updateSpinnerItemStyle(ViewGroup parent, TextView textView, boolean
                 if (isDropDownView) {
                     textView.setTextColor(itemListHintColor);
                     textView.setBackgroundColor(itemListHintBackground);
+                    textView.setPadding(textView.getPaddingLeft(), dpToPx(12), textView.getPaddingRight(), dpToPx(12));
                 } else {
                     textView.setTextColor(SmartMaterialSpinner.this.isEnabled() ? hintColor : disabledColor);
                     measureItemText(textView.getText().toString());