Update country_code_picker.dart

lib/country_code_picker.dart

@@ -68,6 +68,9 @@ class CountryCodePicker extends StatefulWidget {
   /// Set to true if you want to hide the search part
   final bool hideSearch;
 
+  /// Set to true if you want to show drop down button
+  final bool showDropDownButton;
+
   CountryCodePicker({
     this.onChanged,
     this.onInit,
@@ -96,6 +99,7 @@ class CountryCodePicker extends StatefulWidget {
     this.comparator,
     this.countryFilter,
     this.hideSearch = false,
+    this.showDropDownButton = false,
     this.dialogSize,
     this.closeIcon = const Icon(Icons.close),
     Key key,
@@ -150,6 +154,7 @@ class CountryCodePickerState extends State<CountryCodePicker> {
           direction: Axis.horizontal,
           mainAxisSize: MainAxisSize.min,
           children: <Widget>[
+
             if (widget.showFlagMain != null
                 ? widget.showFlagMain
                 : widget.showFlag)
@@ -167,6 +172,7 @@ class CountryCodePickerState extends State<CountryCodePicker> {
                   ),
                 ),
               ),
+
             if (!widget.hideMainText)
               Flexible(
                 fit: widget.alignLeft ? FlexFit.tight : FlexFit.loose,
@@ -174,10 +180,25 @@ class CountryCodePickerState extends State<CountryCodePicker> {
                   widget.showOnlyCountryWhenClosed
                       ? selectedItem.toCountryStringOnly()
                       : selectedItem.toString(),
-                  style: widget.textStyle ?? Theme.of(context).textTheme.button,
+                  style: widget.textStyle ?? Theme
+                      .of(context)
+                      .textTheme
+                      .button,
                   overflow: widget.textOverflow,
                 ),
               ),
+            if(widget.showDropDownButton)
+              Flexible(
+                flex: widget.alignLeft ? 0 : 1,
+                fit: widget.alignLeft ? FlexFit.tight : FlexFit.loose,
+                child: Padding(
+                    padding: widget.alignLeft
+                        ? const EdgeInsets.only(right: 16.0, left: 8.0)
+                        : const EdgeInsets.only(right: 16.0),
+                    child: Icon(Icons.arrow_drop_down, color: Colors.grey,
+                      size: widget.flagWidth,)
+                ),
+              ),
           ],
         ),
       );
@@ -245,7 +266,8 @@ class CountryCodePickerState extends State<CountryCodePicker> {
       barrierColor: widget.barrierColor ?? Colors.grey.withOpacity(0.5),
       backgroundColor: widget.backgroundColor ?? Colors.transparent,
       context: context,
-      builder: (context) => Center(
+      builder: (context) =>
+          Center(
             child: SelectionDialog(
               elements,
               favoriteElements,