enable custom view widgets;

lib/country_code_picker.dart

@@ -76,9 +76,15 @@ class _CountryCodePickerState extends State<CountryCodePicker> {
   Widget build(BuildContext context) {
     Widget _widget;
     if (widget.customWidget != null)
-      _widget = widget.customWidget;
+      _widget = InkWell(
+        onTap: _showSelectionDialog,
+        child: widget.customWidget,
+      );
     else {
-      _widget = Flex(
+      _widget = FlatButton(
+        padding: widget.padding,
+        onPressed: _showSelectionDialog,
+        child: Flex(
           direction: Axis.horizontal,
           mainAxisSize: MainAxisSize.min,
           children: <Widget>[
@@ -108,13 +114,10 @@ class _CountryCodePickerState extends State<CountryCodePicker> {
               ),
             ),
           ],
+        ),
       );
     }
-    return FlatButton(
+    return _widget;
-      child: _widget,
-      padding: widget.padding,
-      onPressed: _showSelectionDialog,
-    );
   }
 
   @override