inserido icone android, logo,ajustada a tela home e login

lib/widgets/dropdown_button_city.dart

@@ -0,0 +1,65 @@
+import 'package:flutter/material.dart';
+import 'package:rkm/widgets/text_default.dart';
+
+import '../utils/color_palette.dart';
+import '../utils/const_variable.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*0.6,
+          margin: ConstVariable().marginHightInput,
+          padding: ConstVariable().paddingWidth,
+          decoration: BoxDecoration(
+              borderRadius: BorderRadius.circular(ConstVariable().radiusBorderInput),
+              border: Border.all(
+                color: validator?ColorPalette.white:ColorPalette.red
+              ),
+              color: ColorPalette.white
+          ),
+          child: DropdownButtonHideUnderline(
+            child: DropdownButton<String>(
+                hint: TextDefault(text: 'Cidade',fontSize: ConstVariable().fontSizeInput),
+                value: select,
+                items: ConstVariable().itensCity.map((value) => DropdownMenuItem(
+                  value: value,
+                  child: TextDefault(
+                    text: value,
+                  ),
+                )
+                ).toList(),
+                onChanged:onChanged
+            ),
+          ),
+        ),
+        Container(
+          alignment: Alignment.centerLeft,
+          padding: EdgeInsets.symmetric(horizontal: 15),
+          child: TextDefault(
+            text: validator?'':error,
+            color: ColorPalette.red,
+            fontSize: 12
+          )
+        ),
+      ],
+    );
+  }
+}