Primeiro commit no ramo main

lib/componentes/dropdown_button_city.dart

@@ -0,0 +1,57 @@
+import 'package:flutter/material.dart';
+import 'package:rkm_educa_prof_app/componentes/text_custom.dart';
+import 'package:rkm_educa_prof_app/utils/cidades_db.dart';
+
+import '../utils/cores.dart';
+
+class DropDownButtonCity extends StatelessWidget {
+  var onChanged;
+  String? select;
+  bool validator;
+  String error;
+
+  DropDownButtonCity({
+    required this.onChanged,
+    required this.select,
+    required this.error,
+    required this.validator
+});
+
+  @override
+  Widget build(BuildContext context) {
+
+    double width = MediaQuery.of(context).size.width;
+
+    return Column(
+      children: [
+        Container(
+          width: width,
+          margin: EdgeInsets.symmetric(vertical: 5),
+          padding: EdgeInsets.symmetric(vertical: 5),
+          color:PaletaCores.cinzaInput,
+          child: DropdownButtonHideUnderline(
+            child: DropdownButton(
+                hint: Padding(
+                  padding: const EdgeInsets.symmetric(horizontal: 8.0),
+                  child: TextCustom(text: 'Cidade',size: 15.0),
+                ),
+                value: select,
+                items: Cidades().listCidades.map((value) => DropdownMenuItem(
+                  value: value.cidadeFront,
+                  child: Padding(
+                    padding: const EdgeInsets.symmetric(horizontal: 8.0),
+                    child: TextCustom(
+                      text: value.cidadeFront,
+                      color: Colors.black54,
+                    ),
+                  ),
+                )
+                ).toList(),
+                onChanged:onChanged
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}