Initial project commit

lib/login.dart

@@ -0,0 +1,66 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_pwa_test/Content.dart';
+
+class Login extends StatelessWidget {
+  static const String _password = "SGVsbG9Xb3JsZCE=";
+
+  Login({Key? key, required this.loginCallback}) : super(key: key);
+  
+  final VoidCallback loginCallback;
+
+  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Form(
+        key: _formKey,
+        autovalidateMode: AutovalidateMode.disabled,
+        child: Column(
+          children: [
+            Container(
+              constraints: const BoxConstraints(maxWidth: 500),
+              child: TextFormField(
+                decoration: const InputDecoration(
+                  labelText: "Password",
+                  hintText: "Password",
+                  alignLabelWithHint: true,
+                  border: OutlineInputBorder(),
+                ),
+                validator: (s) {
+                  if (s == null) {
+                    return "Please provide a value";
+                  }
+
+                  var encoded = base64Encode(utf8.encode(s));
+                  print(encoded);
+                  if (encoded != _password) {
+                    return "Password is wrong";
+                  }
+
+                  return null;
+                },
+              ),
+            ),
+            const SizedBox(height: 16.0),
+            ElevatedButton(
+              onPressed: () async {
+                var result = _formKey.currentState?.validate();
+                if (result == null || !result) {
+                  print(
+                      "Could not validate password because of an internal error");
+                  return;
+                }
+
+                loginCallback();
+              },
+              child: const Text("Ok"),
+            )
+          ],
+        ),
+      ),
+    );
+  }
+}