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

lib/widgets/input_text.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:rkm/utils/color_palette.dart';
+import '../utils/const_variable.dart';
 
 class InputText extends StatelessWidget {
   bool obscure;
@@ -7,36 +8,45 @@ class InputText extends StatelessWidget {
   double fontSize;
   String hint;
   double width;
+  String label;
+  String error;
 
   InputText({
     required this.controller,
     required this.width,
     this.obscure = false,
-    this.fontSize = 20.0,
+    this.fontSize = 15.0,
     this.hint = '',
+    this.label = '',
+    this.error = '',
   });
 
   @override
   Widget build(BuildContext context) {
     return Container(
-      padding: EdgeInsets.symmetric(horizontal: 10),
-      decoration: BoxDecoration(
-        borderRadius: BorderRadius.circular(15),
-        color: ColorPalette.border
-      ),
+      color: ColorPalette.white,
+      margin: ConstVariable().marginHightInput,
       width: width,
       child: TextFormField(
+        validator: (value) {
+          if (value!=null && value!.length==0) {
+            return error;
+          }
+          return null;
+        },
         obscureText: this.obscure,
         controller: this.controller,
         style: TextStyle(
-          color: ColorPalette.white,
+          color: ColorPalette.gray,
           fontSize: this.fontSize,
         ),
         decoration: InputDecoration(
-          border: InputBorder.none,
+          fillColor: ColorPalette.appBar,
+          labelText: label,
+          border: OutlineInputBorder(),
           hintText: this.hint,
           hintStyle: TextStyle(
-            color: ColorPalette.white,
+            color: ColorPalette.gray,
             fontSize: this.fontSize,
           )
         )